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https://github.com/rd-stuffs/msm-4.14.git
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1914 Commits
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a9566ccc56 |
msm-4.14: Make macros no-op using ((void)0)
Do not solely rely on compiler optimizations to get the workaround of having macros do nothing using an empty do-while loop. It's inefficient. Use ((void)0) to which the standard assert macro expands when NDEBUG is defined. No functional change intended. [mcdofrenchfreis]: Implement this patch to tree using the command: git grep -l "do {} while (0)" | xargs sed -i "s/do {} while (0)/((void)0)/g" Change-Id: I9615c62c46670e31ed8d0d89d195144541baa3e6 Signed-off-by: Tashfin Shakeer Rhythm <tashfinshakeerrhythm@gmail.com> Signed-off-by: mcdofrenchfreis <xyzevan@androidist.net> Signed-off-by: Richard Raya <rdxzv.dev@gmail.com> |
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1b9f971175 |
This is the 4.14.353 OpenELA-Extended LTS stable release
-----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEERFwmR4yFob14UDOYC8702P6YulgFAmcHrG8ZHHZlZ2FyZC5u b3NzdW1Ab3JhY2xlLmNvbQAKCRALzvTY/pi6WIQuEACCYf9xCGBALlKFb0pXX3eF oiRkceNyy5NWSndD7t9p/3d2g4YrVptGxtTZN12IltfG4wfCQ+qC/0g2Mu4ho0Yp 2ExKVaIli1t2csIjXCUUyjh3jU0JOkDwJap9n5QemACsX8zrDfKVwdlj9hw+e7vi fBWwdfl1duK5cfVbbyvL74It4WeMnjuAYrBnMTxhYBTq56xFLrbBILl8BLxAV5NN 5wGoNCeUtj8LxUrL2qs5QoT3Bf7uoDlLnu1Ly7jDMMX34/oNh5huOjZdDFbQYxS3 DsEe6ljOYOyB/awdUhScERfxVPimumN3nHWnRJbsQhX36uXT6U7HNJah4zauchRk UlKUSfG3YyOqKIwFH+8oGmkuCm6wZbVjVsNNkYhT804BCCHrasJ1SHXsSB9R0MpU x3IQOoiuc33bUYrSqWAO7utvt+PwG++3GHz0XQwPfZn4DHY18/e+VNsGtQTPqzRG tsywZVTN0DC0nO7L772nkQDb7z2mhmJGgN8q3FPbMTfp/I1phIh9C17pckfpHKAl ippTmTMaIYDU3Rlc1g/cu363GOaXWRN4t03VSEu/BLV0IElRktUnmuBU3B/rMb+F ItaBmhnZGXHUrulMTxDtzItrYMwx00USw6IrG3iYjob0MhhxhLVxEh0vKc7Te2w5 2FZEjj2BxinK66mJgAolZw== =BQd/ -----END PGP SIGNATURE----- Merge tag 'v4.14.353-openela' of https://github.com/openela/kernel-lts This is the 4.14.353 OpenELA-Extended LTS stable release * tag 'v4.14.353-openela' of https://github.com/openela/kernel-lts: (173 commits) LTS: Update to 4.14.353 net: fix __dst_negative_advice() race selftests: make order checking verbose in msg_zerocopy selftest selftests: fix OOM in msg_zerocopy selftest Revert "selftests/net: reap zerocopy completions passed up as ancillary data." Revert "selftests: fix OOM in msg_zerocopy selftest" Revert "selftests: make order checking verbose in msg_zerocopy selftest" nvme/pci: Add APST quirk for Lenovo N60z laptop exec: Fix ToCToU between perm check and set-uid/gid usage drm/i915/gem: Fix Virtual Memory mapping boundaries calculation drm/i915: Try GGTT mmapping whole object as partial netfilter: nf_tables: set element extended ACK reporting support kbuild: Fix '-S -c' in x86 stack protector scripts drm/mgag200: Set DDC timeout in milliseconds drm/bridge: analogix_dp: properly handle zero sized AUX transactions drm/bridge: analogix_dp: Properly log AUX CH errors drm/bridge: analogix_dp: Reset aux channel if an error occurred drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer x86/mtrr: Check if fixed MTRRs exist before saving them tracing: Fix overflow in get_free_elt() ... Change-Id: I0e92a979e31d4fa6c526c6b70a1b61711d9747bb Signed-off-by: Richard Raya <rdxzv.dev@gmail.com> |
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1ac49c559c |
m68k: amiga: Turn off Warp1260 interrupts during boot
commit 1d8491d3e726984343dd8c3cdbe2f2b47cfdd928 upstream. On an Amiga 1200 equipped with a Warp1260 accelerator, an interrupt storm coming from the accelerator board causes the machine to crash in local_irq_enable() or auto_irq_enable(). Disabling interrupts for the Warp1260 in amiga_parse_bootinfo() fixes the problem. Link: https://lore.kernel.org/r/ZkjwzVwYeQtyAPrL@amaterasu.local Cc: stable <stable@kernel.org> Signed-off-by: Paolo Pisati <p.pisati@gmail.com> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20240601153254.186225-1-p.pisati@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> (cherry picked from commit 296185ef87e6184e364bd9e7c983089b8e606a55) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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8bc40077dd |
m68k: cmpxchg: Fix return value for default case in __arch_xchg()
[ Upstream commit 21b9e722ad28c19c2bc83f18f540b3dbd89bf762 ] The return value of __invalid_xchg_size() is assigned to tmp instead of the return variable x. Assign it to x instead. Fixes: 2501cf768e4009a0 ("m68k: Fix xchg/cmpxchg to fail to link if given an inappropriate pointer") Signed-off-by: Thorsten Blum <thorsten.blum@toblux.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/20240702034116.140234-2-thorsten.blum@toblux.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit 8c43fbd39500ce7bdc779a772752cc2b436a692c) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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266d74e904 |
m68k: atari: Fix TT bootup freeze / unexpected (SCU) interrupt messages
[ Upstream commit f70065a9fd988983b2c693631b801f25a615fc04 ] Avoid freeze on Atari TT / MegaSTe boot with continuous messages of: unexpected interrupt from 112 Which was due to VBL interrupt being enabled in SCU sys mask, but there being no handler for that any more. (Bug and fix were first verified on real Atari TT HW by Christian, this patch later on in Hatari emulator.) Fixes: 1fa0b29f3a43f9dd ("fbdev: Kill Atari vblank cursor blinking") Reported-by: Nicolas Pomarède <npomarede@corp.free.fr> Closes: https://listengine.tuxfamily.org/lists.tuxfamily.org/hatari-devel/2024/06/msg00016.html Closes: https://lore.kernel.org/all/9aa793d7-82ed-4fbd-bce5-60810d8a9119@helsinkinet.fi Tested-by: Christian Zietz <czietz@gmx.net> Signed-off-by: Eero Tamminen <oak@helsinkinet.fi> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/20240624144901.5236-1-oak@helsinkinet.fi Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit b6c2b179b6908e439b2385c25d7b3477e4be4dce) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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fad3b5236d |
This is the 4.14.349 OpenELA-Extended LTS stable release
-----BEGIN PGP SIGNATURE----- iQJNBAABCAA3FiEERFwmR4yFob14UDOYC8702P6YulgFAmaYMNYZHHZlZ2FyZC5u b3NzdW1Ab3JhY2xlLmNvbQAKCRALzvTY/pi6WI+2EACbJP/GYZL4iZezt3yp9J6y ObeobshL3ODENH9J4Rpjo7EJNdRbiJmqK07C6g3gxfEBqYhMDxYCBbhwTTvvHmu7 ezr1rmQmUlyzf2qW905a+rTawUrKztZpvZ0ycRXgfQHjX8w64salq/G5X9kJ1CZQ 0TYwhDXXYRc1yuhJkVH0+ZUP+FvSBYXY42QZQ8tRzviBKgHUqyQ2JiLN7yGXStSp PEOCeXuEsQxkzbFU1rG7J9KXfUYndih+fiGSvuUUZF6WTHNobfkh+nrGzsdadtUp UW9nEdHjjEhTpTr125uOGc3H2Y1rWVPrcZ9kvJBhzf4WKNBFu2v7Bc5i2/Yz/jKU 5cz7bjqpSnFOAmNe1f+pOO2oIsBk/xhAbMrPHS1eTJfUJmVL21HgDS3nXfV3yYcR 0cHH10HGf7DEx2PRh3DM53XzaiumOXY3e/eFt+syYFWtsPY0XKHjsfwLeoujCVgh Sb6yiV1HTNg2hkGck+CQKTvHKZhSs1uE+vGSHiSTpryrsXYCTRJySSXEdiU0QpeL c9xzRE0PrUaUKNucdimGr6EqvXL11M1I59Z3ygk8vyLGI13vSmkRZ9Sl7m0tbirA 0K1Ws2PkwuYQEOut8Esp6DJ2n38Uz3j0lnb2lreC0KbfXMvPWQfP81M1Lc+Pkpn6 Zgbbs68F6jYs0KV/iRty2A== =RvUO -----END PGP SIGNATURE----- Merge tag 'v4.14.349-openela' of https://github.com/openela/kernel-lts This is the 4.14.349 OpenELA-Extended LTS stable release * tag 'v4.14.349-openela' of https://github.com/openela/kernel-lts: (160 commits) LTS: Update to 4.14.349 x86/kvm: Disable all PV features on crash x86/kvm: Disable kvmclock on all CPUs on shutdown x86/kvm: Teardown PV features on boot CPU as well crypto: algif_aead - fix uninitialized ctx->init nfs: fix undefined behavior in nfs_block_bits() ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find() sparc: move struct termio to asm/termios.h kdb: Use format-specifiers rather than memset() for padding in kdb_read() kdb: Merge identical case statements in kdb_read() kdb: Fix console handling when editing and tab-completing commands kdb: Use format-strings rather than '\0' injection in kdb_read() kdb: Fix buffer overflow during tab-complete sparc64: Fix number of online CPUs intel_th: pci: Add Meteor Lake-S CPU support net/9p: fix uninit-value in p9_client_rpc() crypto: qat - Fix ADF_DEV_RESET_SYNC memory leak KVM: arm64: Allow AArch32 PSTATE.M to be restored as System mode netfilter: nft_dynset: relax superfluous check on set updates netfilter: nft_dynset: report EOPNOTSUPP on missing set feature ... Change-Id: Idb0053e6b2186ef17f31e15fdb601ae451c81283 Signed-off-by: Richard Raya <rdxzv.dev@gmail.com> |
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3d47f159d4 |
m68k: mac: Fix reboot hang on Mac IIci
[ Upstream commit 265a3b322df9a973ff1fc63da70af456ab6ae1d6 ] Calling mac_reset() on a Mac IIci does reset the system, but what follows is a POST failure that requires a manual reset to resolve. Avoid that by using the 68030 asm implementation instead of the C implementation. Apparently the SE/30 has a similar problem as it has used the asm implementation since before git. This patch extends that solution to other systems with a similar ROM. After this patch, the only systems still using the C implementation are 68040 systems where adb_type is either MAC_ADB_IOP or MAC_ADB_II. This implies a 1 MiB Quadra ROM. This now includes the Quadra 900/950, which previously fell through to the "should never get here" catch-all. Reported-and-tested-by: Stan Johnson <userm57@yahoo.com> Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/480ebd1249d229c6dc1f3f1c6d599b8505483fd8.1714797072.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit 8055e882c57031a5ca7fbf278796c19ded9f9d6f) [Vegard: fix conflicts due to missing commits 6df2afba7a87afa71d4baf9875ec846d3040f9bb ("m68k/mac: Enable RTC for 100-series PowerBooks") and ebd722275f9cfc6752e29d2412fa3816ca05764b ("macintosh/via-pmu: Replace via-pmu68k driver with via-pmu driver").] Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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4e23b79c4b |
m68k/mac: Use '030 reset method on SE/30
[ Upstream commit 9c0e91f6b701dce6902408d50c4df9cebe4744f5 ] The comment says that calling the ROM routine doesn't work. But testing shows that the 68030 fall-back reset method does work, so just use that. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Stable-dep-of: 265a3b322df9 ("m68k: mac: Fix reboot hang on Mac IIci") Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit c96430d59c71a0e5c641b5267ccf141c501fe15e) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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314fdca9aa |
m68k: Fix spinlock race in kernel thread creation
[ Upstream commit da89ce46f02470ef08f0f580755d14d547da59ed ] Context switching does take care to retain the correct lock owner across the switch from 'prev' to 'next' tasks. This does rely on interrupts remaining disabled for the entire duration of the switch. This condition is guaranteed for normal process creation and context switching between already running processes, because both 'prev' and 'next' already have interrupts disabled in their saved copies of the status register. The situation is different for newly created kernel threads. The status register is set to PS_S in copy_thread(), which does leave the IPL at 0. Upon restoring the 'next' thread's status register in switch_to() aka resume(), interrupts then become enabled prematurely. resume() then returns via ret_from_kernel_thread() and schedule_tail() where run queue lock is released (see finish_task_switch() and finish_lock_switch()). A timer interrupt calling scheduler_tick() before the lock is released in finish_task_switch() will find the lock already taken, with the current task as lock owner. This causes a spinlock recursion warning as reported by Guenter Roeck. As far as I can ascertain, this race has been opened in commit 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") but I haven't done a detailed study of kernel history so it may well predate that commit. Interrupts cannot be disabled in the saved status register copy for kernel threads (init will complain about interrupts disabled when finally starting user space). Disable interrupts temporarily when switching the tasks' register sets in resume(). Note that a simple oriw 0x700,%sr after restoring sr is not enough here - this leaves enough of a race for the 'spinlock recursion' warning to still be observed. Tested on ARAnyM and qemu (Quadra 800 emulation). Fixes: 533e6903bea0 ("m68k: split ret_from_fork(), simplify kernel_thread()") Reported-by: Guenter Roeck <linux@roeck-us.net> Closes: https://lore.kernel.org/all/07811b26-677c-4d05-aeb4-996cd880b789@roeck-us.net Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20240411033631.16335-1-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> (cherry picked from commit 2a8d1d95302c7d52c6ac8fa5cb4a6948ae0d3a14) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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cbe81c90b0 |
m68k/mac: Add mutual exclusion for IOP interrupt polling
The IOP interrupt handler iop_ism_irq() is used by the adb-iop driver to poll for ADB request completion. Unfortunately, it is not re-entrant. Fix the race condition by adding an iop_ism_irq_poll() function with suitable mutual exclusion. Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: linuxppc-dev@lists.ozlabs.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> (cherry picked from commit 92178fcabbcd39fc9ccd4e58ec4be83dd5323a46) Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com> |
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9cdc78c354 |
Merge branch 'android-4.14-stable' of https://android.googlesource.com/kernel/common
* 'android-4.14-stable' of https://android.googlesource.com/kernel/common: (2966 commits) Linux 4.14.331 net: sched: fix race condition in qdisc_graft() scsi: virtio_scsi: limit number of hw queues by nr_cpu_ids ext4: remove gdb backup copy for meta bg in setup_new_flex_group_blocks ext4: correct return value of ext4_convert_meta_bg ext4: correct offset of gdb backup in non meta_bg group to update_backups ext4: apply umask if ACL support is disabled media: venus: hfi: fix the check to handle session buffer requirement media: sharp: fix sharp encoding i2c: i801: fix potential race in i801_block_transaction_byte_by_byte net: dsa: lan9303: consequently nested-lock physical MDIO ALSA: info: Fix potential deadlock at disconnection parisc/pgtable: Do not drop upper 5 address bits of physical address parisc: Prevent booting 64-bit kernels on PA1.x machines mcb: fix error handling for different scenarios when parsing jbd2: fix potential data lost in recovering journal raced with synchronizing fs bdev genirq/generic_chip: Make irq_remove_generic_chip() irqdomain aware mmc: meson-gx: Remove setting of CMD_CFG_ERROR PM: hibernate: Clean up sync_read handling in snapshot_write_next() PM: hibernate: Use __get_safe_page() rather than touching the list ... Change-Id: I755d2aa7c525ace28adc4aee433572b3110ea39b |
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96ce67041e |
m68k: Fix invalid .section syntax
[ Upstream commit 922a9bd138101e3e5718f0f4d40dba68ef89bb43 ] gas supports several different forms for .section for ELF targets, including: .section NAME [, "FLAGS"[, @TYPE[,FLAG_SPECIFIC_ARGUMENTS]]] and: .section "NAME"[, #FLAGS...] In several places we use a mix of these two forms: .section NAME, #FLAGS... A current development snapshot of binutils (2.40.50.20230611) treats this mixed syntax as an error. Change to consistently use: .section NAME, "FLAGS" as is used elsewhere in the kernel. Link: https://buildd.debian.org/status/fetch.php?pkg=linux&arch=m68k&ver=6.4%7Erc6-1%7Eexp1&stamp=1686907300&raw=1 Signed-off-by: Ben Hutchings <benh@debian.org> Tested-by: Jan-Benedict Glaw <jbglaw@lug-owl.de> Link: https://lore.kernel.org/r/ZIyBaueWT9jnTwRC@decadent.org.uk Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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433002684d |
m68k/cpu: Switch to arch_cpu_finalize_init()
commit 9ceecc2589b9d7cef6b321339ed8de484eac4b20 upstream check_bugs() is about to be phased out. Switch over to the new arch_cpu_finalize_init() implementation. No functional change. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230613224545.254342916@linutronix.de Signed-off-by: Daniel Sneddon <daniel.sneddon@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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f900a4a3a6 |
m68k: Move signal frame following exception on 68020/030
commit b845b574f86dcb6a70dfa698aa87a237b0878d2a upstream. On 68030/020, an instruction such as, moveml %a2-%a3/%a5,%sp@- may cause a stack page fault during instruction execution (i.e. not at an instruction boundary) and produce a format 0xB exception frame. In this situation, the value of USP will be unreliable. If a signal is to be delivered following the exception, this USP value is used to calculate the location for a signal frame. This can result in a corrupted user stack. The corruption was detected in dash (actually in glibc) where it showed up as an intermittent "stack smashing detected" message and crash following signal delivery for SIGCHLD. It was hard to reproduce that failure because delivery of the signal raced with the page fault and because the kernel places an unpredictable gap of up to 7 bytes between the USP and the signal frame. A format 0xB exception frame can be produced by a bus error or an address error. The 68030 Users Manual says that address errors occur immediately upon detection during instruction prefetch. The instruction pipeline allows prefetch to overlap with other instructions, which means an address error can arise during the execution of a different instruction. So it seems likely that this patch may help in the address error case also. Reported-and-tested-by: Stan Johnson <userm57@yahoo.com> Link: https://lore.kernel.org/all/CAMuHMdW3yD22_ApemzW_6me3adq6A458u1_F0v-1EYwK_62jPA@mail.gmail.com/ Cc: Michael Schmitz <schmitzmic@gmail.com> Cc: Andreas Schwab <schwab@linux-m68k.org> Cc: stable@vger.kernel.org Co-developed-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Signed-off-by: Finn Thain <fthain@linux-m68k.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/9e66262a754fcba50208aa424188896cc52a1dd1.1683365892.git.fthain@linux-m68k.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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1a6059f5ed |
m68k: Only force 030 bus error if PC not in exception table
[ Upstream commit e36a82bebbf7da814530d5a179bef9df5934b717 ] __get_kernel_nofault() does copy data in supervisor mode when forcing a task backtrace log through /proc/sysrq_trigger. This is expected cause a bus error exception on e.g. NULL pointer dereferencing when logging a kernel task has no workqueue associated. This bus error ought to be ignored. Our 030 bus error handler is ill equipped to deal with this: Whenever ssw indicates a kernel mode access on a data fault, we don't even attempt to handle the fault and instead always send a SEGV signal (or panic). As a result, the check for exception handling at the fault PC (buried in send_sig_fault() which gets called from do_page_fault() eventually) is never used. In contrast, both 040 and 060 access error handlers do not care whether a fault happened on supervisor mode access, and will call do_page_fault() on those, ultimately honoring the exception table. Add a check in bus_error030 to call do_page_fault() in case we do have an entry for the fault PC in our exception table. I had attempted a fix for this earlier in 2019 that did rely on testing pagefault_disabled() (see link below) to achieve the same thing, but this patch should be more generic. Tested on 030 Atari Falcon. Reported-by: Eero Tamminen <oak@helsinkinet.fi> Link: https://lore.kernel.org/r/alpine.LNX.2.21.1904091023540.25@nippy.intranet Link: https://lore.kernel.org/r/63130691-1984-c423-c1f2-73bfd8d3dcd3@gmail.com Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230301021107.26307-1-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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8a563ac3aa |
m68k: Check syscall_trace_enter() return code
[ Upstream commit 2ca8a1de4437f21562e57f9ac123914747a8e7a1 ] Check return code of syscall_trace_enter(), and skip syscall if -1. Return code will be left at what had been set by ptrace or seccomp (in regs->d0). No regression seen in testing with strace on ARAnyM. Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230112035529.13521-2-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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8972b8b0c9 |
m68k: /proc/hardware should depend on PROC_FS
[ Upstream commit 1e5b5df65af99013b4d31607ddb3ca5731dbe44d ] When CONFIG_PROC_FS is not set, there is a build error for an unused function. Make PROC_HARDWARE depend on PROC_FS to prevent this error. In file included from ../arch/m68k/kernel/setup.c:3: ../arch/m68k/kernel/setup_mm.c:477:12: error: 'hardware_proc_show' defined but not used [-Werror=unused-function] 477 | static int hardware_proc_show(struct seq_file *m, void *v) | ^~~~~~~~~~~~~~~~~~ Fixes: 66d857b08b8c ("m68k: merge m68k and m68knommu arch directories") # v3.0 Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Link: https://lore.kernel.org/r/20230209010825.24136-1-rdunlap@infradead.org Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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5eded74b49 |
exit: Add and use make_task_dead.
commit 0e25498f8cd43c1b5aa327f373dd094e9a006da7 upstream. There are two big uses of do_exit. The first is it's design use to be the guts of the exit(2) system call. The second use is to terminate a task after something catastrophic has happened like a NULL pointer in kernel code. Add a function make_task_dead that is initialy exactly the same as do_exit to cover the cases where do_exit is called to handle catastrophic failure. In time this can probably be reduced to just a light wrapper around do_task_dead. For now keep it exactly the same so that there will be no behavioral differences introducing this new concept. Replace all of the uses of do_exit that use it for catastraphic task cleanup with make_task_dead to make it clear what the code is doing. As part of this rename rewind_stack_do_exit rewind_stack_and_make_dead. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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9c642251ed
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Merge remote-tracking branch 'google/android-4.14-stable' into richelieu
* google/android-4.14-stable: UPSTREAM: lib/vsprintf: Hash printed address for netdev bits fallback UPSTREAM: lib/vsprintf: Prepare for more general use of ptr_to_id() UPSTREAM: lib/vsprintf: Make ptr argument conts in ptr_to_id() UPSTREAM: vsprintf: Replace memory barrier with static_key for random_ptr_key update UPSTREAM: lib/test_printf.c: accept "ptrval" as valid result for plain 'p' tests UPSTREAM: lib/vsprintf: Do not handle %pO[^F] as %px BACKPORT: l2tp: fix race in pppol2tp_release with session object destroy BACKPORT: l2tp: don't use inet_shutdown on ppp session destroy Linux 4.14.285 tcp: drop the hash_32() part from the index calculation tcp: increase source port perturb table to 2^16 tcp: dynamically allocate the perturb table used by source ports tcp: add small random increments to the source port tcp: use different parts of the port_offset for index and offset tcp: add some entropy in __inet_hash_connect() xprtrdma: fix incorrect header size calculations usb: gadget: u_ether: fix regression in setting fixed MAC address s390/mm: use non-quiescing sske for KVM switch to keyed guest l2tp: fix race in pppol2tp_release with session object destroy l2tp: don't use inet_shutdown on ppp session destroy virtio-pci: Remove wrong address verification in vp_del_vqs() ext4: add reserved GDT blocks check ext4: make variable "count" signed ext4: fix bug_on ext4_mb_use_inode_pa serial: 8250: Store to lsr_save_flags after lsr read usb: gadget: lpc32xx_udc: Fix refcount leak in lpc32xx_udc_probe usb: dwc2: Fix memory leak in dwc2_hcd_init USB: serial: io_ti: add Agilent E5805A support USB: serial: option: add support for Cinterion MV31 with new baseline comedi: vmk80xx: fix expression for tx buffer size irqchip/gic/realview: Fix refcount leak in realview_gic_of_init certs/blacklist_hashes.c: fix const confusion in certs blacklist arm64: ftrace: fix branch range checks net: bgmac: Fix an erroneous kfree() in bgmac_remove() misc: atmel-ssc: Fix IRQ check in ssc_probe tty: goldfish: Fix free_irq() on remove i40e: Fix call trace in setup_tx_descriptors pNFS: Don't keep retrying if the server replied NFS4ERR_LAYOUTUNAVAILABLE random: credit cpu and bootloader seeds by default net: ethernet: mtk_eth_soc: fix misuse of mem alloc interface netdev[napi]_alloc_frag ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg nfc: nfcmrvl: Fix memory leak in nfcmrvl_play_deferred virtio-mmio: fix missing put_device() when vm_cmdline_parent registration failed scsi: pmcraid: Fix missing resource cleanup in error case scsi: ipr: Fix missing/incorrect resource cleanup in error case scsi: lpfc: Fix port stuck in bypassed state after LIP in PT2PT topology scsi: vmw_pvscsi: Expand vcpuHint to 16 bits ASoC: wm8962: Fix suspend while playing music ata: libata-core: fix NULL pointer deref in ata_host_alloc_pinfo() ASoC: cs42l56: Correct typo in minimum level for SX volume controls ASoC: cs42l52: Correct TLV for Bypass Volume ASoC: cs53l30: Correct number of volume levels on SX controls ASoC: cs42l52: Fix TLV scales for mixer controls random: account for arch randomness in bits random: mark bootloader randomness code as __init random: avoid checking crng_ready() twice in random_init() crypto: drbg - make reseeding from get_random_bytes() synchronous crypto: drbg - always try to free Jitter RNG instance crypto: drbg - move dynamic ->reseed_threshold adjustments to __drbg_seed() crypto: drbg - track whether DRBG was seeded with !rng_is_initialized() crypto: drbg - prepare for more fine-grained tracking of seeding state crypto: drbg - always seeded with SP800-90B compliant noise source crypto: drbg - add FIPS 140-2 CTRNG for noise source Revert "random: use static branch for crng_ready()" random: check for signals after page of pool writes random: wire up fops->splice_{read,write}_iter() random: convert to using fops->write_iter() random: move randomize_page() into mm where it belongs random: move initialization functions out of hot pages random: use proper return types on get_random_{int,long}_wait() random: remove extern from functions in header random: use static branch for crng_ready() random: credit architectural init the exact amount random: handle latent entropy and command line from random_init() random: use proper jiffies comparison macro random: remove ratelimiting for in-kernel unseeded randomness random: avoid initializing twice in credit race random: use symbolic constants for crng_init states siphash: use one source of truth for siphash permutations random: help compiler out with fast_mix() by using simpler arguments random: do not use input pool from hard IRQs random: order timer entropy functions below interrupt functions random: do not pretend to handle premature next security model random: do not use batches when !crng_ready() random: insist on random_get_entropy() existing in order to simplify xtensa: use fallback for random_get_entropy() instead of zero sparc: use fallback for random_get_entropy() instead of zero um: use fallback for random_get_entropy() instead of zero x86/tsc: Use fallback for random_get_entropy() instead of zero nios2: use fallback for random_get_entropy() instead of zero arm: use fallback for random_get_entropy() instead of zero mips: use fallback for random_get_entropy() instead of just c0 random m68k: use fallback for random_get_entropy() instead of zero timekeeping: Add raw clock fallback for random_get_entropy() powerpc: define get_cycles macro for arch-override alpha: define get_cycles macro for arch-override parisc: define get_cycles macro for arch-override s390: define get_cycles macro for arch-override ia64: define get_cycles macro for arch-override init: call time_init() before rand_initialize() random: fix sysctl documentation nits random: document crng_fast_key_erasure() destination possibility random: make random_get_entropy() return an unsigned long random: check for signals every PAGE_SIZE chunk of /dev/[u]random random: check for signal_pending() outside of need_resched() check random: do not allow user to keep crng key around on stack random: do not split fast init input in add_hwgenerator_randomness() random: mix build-time latent entropy into pool at init random: re-add removed comment about get_random_{u32,u64} reseeding random: treat bootloader trust toggle the same way as cpu trust toggle random: skip fast_init if hwrng provides large chunk of entropy random: check for signal and try earlier when generating entropy random: reseed more often immediately after booting random: make consistent usage of crng_ready() random: use SipHash as interrupt entropy accumulator random: replace custom notifier chain with standard one random: don't let 644 read-only sysctls be written to random: give sysctl_random_min_urandom_seed a more sensible value random: do crng pre-init loading in worker rather than irq random: unify cycles_t and jiffies usage and types random: cleanup UUID handling random: only wake up writers after zap if threshold was passed random: round-robin registers as ulong, not u32 random: clear fast pool, crng, and batches in cpuhp bring up random: pull add_hwgenerator_randomness() declaration into random.h random: check for crng_init == 0 in add_device_randomness() random: unify early init crng load accounting random: do not take pool spinlock at boot random: defer fast pool mixing to worker random: rewrite header introductory comment random: group sysctl functions random: group userspace read/write functions random: group entropy collection functions random: group entropy extraction functions random: group initialization wait functions random: remove whitespace and reorder includes random: remove useless header comment random: introduce drain_entropy() helper to declutter crng_reseed() random: deobfuscate irq u32/u64 contributions random: add proper SPDX header random: remove unused tracepoints random: remove ifdef'd out interrupt bench random: tie batched entropy generation to base_crng generation random: zero buffer after reading entropy from userspace random: remove outdated INT_MAX >> 6 check in urandom_read() random: use hash function for crng_slow_load() random: absorb fast pool into input pool after fast load random: do not xor RDRAND when writing into /dev/random random: ensure early RDSEED goes through mixer on init random: inline leaves of rand_initialize() random: use RDSEED instead of RDRAND in entropy extraction random: fix locking in crng_fast_load() random: remove batched entropy locking random: remove use_input_pool parameter from crng_reseed() random: make credit_entropy_bits() always safe random: always wake up entropy writers after extraction random: use linear min-entropy accumulation crediting random: simplify entropy debiting random: use computational hash for entropy extraction random: only call crng_finalize_init() for primary_crng random: access primary_pool directly rather than through pointer random: continually use hwgenerator randomness random: simplify arithmetic function flow in account() random: access input_pool_data directly rather than through pointer random: cleanup fractional entropy shift constants random: prepend remaining pool constants with POOL_ random: de-duplicate INPUT_POOL constants random: remove unused OUTPUT_POOL constants random: rather than entropy_store abstraction, use global random: try to actively add entropy rather than passively wait for it random: remove unused extract_entropy() reserved argument random: remove incomplete last_data logic random: cleanup integer types crypto: chacha20 - Fix chacha20_block() keystream alignment (again) random: cleanup poolinfo abstraction random: fix typo in comments random: don't reset crng_init_cnt on urandom_read() random: avoid superfluous call to RDRAND in CRNG extraction random: early initialization of ChaCha constants random: initialize ChaCha20 constants with correct endianness random: use IS_ENABLED(CONFIG_NUMA) instead of ifdefs random: harmonize "crng init done" messages random: mix bootloader randomness into pool random: do not re-init if crng_reseed completes before primary init random: do not sign extend bytes for rotation when mixing random: use BLAKE2s instead of SHA1 in extraction random: remove unused irq_flags argument from add_interrupt_randomness() random: document add_hwgenerator_randomness() with other input functions crypto: blake2s - adjust include guard naming crypto: blake2s - include <linux/bug.h> instead of <asm/bug.h> MAINTAINERS: co-maintain random.c random: remove dead code left over from blocking pool random: avoid arch_get_random_seed_long() when collecting IRQ randomness random: add arch_get_random_*long_early() powerpc: Use bool in archrandom.h linux/random.h: Mark CONFIG_ARCH_RANDOM functions __must_check linux/random.h: Use false with bool linux/random.h: Remove arch_has_random, arch_has_random_seed s390: Remove arch_has_random, arch_has_random_seed powerpc: Remove arch_has_random, arch_has_random_seed x86: Remove arch_has_random, arch_has_random_seed random: avoid warnings for !CONFIG_NUMA builds random: split primary/secondary crng init paths random: remove some dead code of poolinfo random: fix typo in add_timer_randomness() random: Add and use pr_fmt() random: convert to ENTROPY_BITS for better code readability random: remove unnecessary unlikely() random: remove kernel.random.read_wakeup_threshold random: delete code to pull data into pools random: remove the blocking pool random: fix crash on multiple early calls to add_bootloader_randomness() char/random: silence a lockdep splat with printk() random: make /dev/random be almost like /dev/urandom random: ignore GRND_RANDOM in getentropy(2) random: add GRND_INSECURE to return best-effort non-cryptographic bytes random: Add a urandom_read_nowait() for random APIs that don't warn random: Don't wake crng_init_wait when crng_init == 1 lib/crypto: sha1: re-roll loops to reduce code size lib/crypto: blake2s: move hmac construction into wireguard crypto: blake2s - generic C library implementation and selftest crypto: Deduplicate le32_to_cpu_array() and cpu_to_le32_array() Revert "hwrng: core - Freeze khwrng thread during suspend" char/random: Add a newline at the end of the file random: Use wait_event_freezable() in add_hwgenerator_randomness() fdt: add support for rng-seed random: Support freezable kthreads in add_hwgenerator_randomness() random: fix soft lockup when trying to read from an uninitialized blocking pool latent_entropy: avoid build error when plugin cflags are not set random: document get_random_int() family random: move rand_initialize() earlier random: only read from /dev/random after its pool has received 128 bits drivers/char/random.c: make primary_crng static drivers/char/random.c: remove unused stuct poolinfo::poolbits drivers/char/random.c: constify poolinfo_table random: make CPU trust a boot parameter random: Make crng state queryable random: remove preempt disabled region random: add a config option to trust the CPU's hwrng random: Return nbytes filled from hw RNG random: Fix whitespace pre random-bytes work drivers/char/random.c: remove unused dont_count_entropy random: optimize add_interrupt_randomness random: always fill buffer in get_random_bytes_wait crypto: chacha20 - Fix keystream alignment for chacha20_block() 9p: missing chunk of "fs/9p: Don't update file type when updating file attributes" UPSTREAM: ext4: verify dir block before splitting it UPSTREAM: ext4: fix use-after-free in ext4_rename_dir_prepare BACKPORT: ext4: Only advertise encrypted_casefold when encryption and unicode are enabled BACKPORT: ext4: fix no-key deletion for encrypt+casefold BACKPORT: ext4: optimize match for casefolded encrypted dirs BACKPORT: ext4: handle casefolding with encryption Revert "ANDROID: ext4: Handle casefolding with encryption" Revert "ANDROID: ext4: Optimize match for casefolded encrypted dirs" Revert "ext4: fix use-after-free in ext4_rename_dir_prepare" Revert "ext4: verify dir block before splitting it" Linux 4.14.284 x86/speculation/mmio: Print SMT warning KVM: x86/speculation: Disable Fill buffer clear within guests x86/speculation/mmio: Reuse SRBDS mitigation for SBDS x86/speculation/srbds: Update SRBDS mitigation selection x86/speculation/mmio: Add sysfs reporting for Processor MMIO Stale Data x86/speculation/mmio: Enable CPU Fill buffer clearing on idle x86/bugs: Group MDS, TAA & Processor MMIO Stale Data mitigations x86/speculation/mmio: Add mitigation for Processor MMIO Stale Data x86/speculation: Add a common function for MD_CLEAR mitigation update x86/speculation/mmio: Enumerate Processor MMIO Stale Data bug Documentation: Add documentation for Processor MMIO Stale Data x86/cpu: Add another Alder Lake CPU to the Intel family x86/cpu: Add Lakefield, Alder Lake and Rocket Lake models to the to Intel CPU family x86/cpu: Add Comet Lake to the Intel CPU models header x86/CPU: Add more Icelake model numbers x86/CPU: Add Icelake model number x86/cpu: Add Cannonlake to Intel family x86/cpu: Add Jasper Lake to Intel family cpu/speculation: Add prototype for cpu_show_srbds() x86/cpu: Add Elkhart Lake to Intel family Linux 4.14.283 tcp: fix tcp_mtup_probe_success vs wrong snd_cwnd PCI: qcom: Fix unbalanced PHY init on probe errors mtd: cfi_cmdset_0002: Use chip_ready() for write on S29GL064N mtd: cfi_cmdset_0002: Move and rename chip_check/chip_ready/chip_good_for_write md/raid0: Ignore RAID0 layout if the second zone has only one device powerpc/32: Fix overread/overwrite of thread_struct via ptrace Input: bcm5974 - set missing URB_NO_TRANSFER_DMA_MAP urb flag ixgbe: fix unexpected VLAN Rx in promisc mode on VF ixgbe: fix bcast packets Rx on VF after promisc removal nfc: st21nfca: fix memory leaks in EVT_TRANSACTION handling nfc: st21nfca: fix incorrect validating logic in EVT_TRANSACTION ata: libata-transport: fix {dma|pio|xfer}_mode sysfs files cifs: return errors during session setup during reconnects ALSA: hda/conexant - Fix loopback issue with CX20632 vringh: Fix loop descriptors check in the indirect cases nodemask: Fix return values to be unsigned nbd: fix io hung while disconnecting device nbd: fix race between nbd_alloc_config() and module removal nbd: call genl_unregister_family() first in nbd_cleanup() modpost: fix undefined behavior of is_arm_mapping_symbol() drm/radeon: fix a possible null pointer dereference Revert "net: af_key: add check for pfkey_broadcast in function pfkey_process" md: protect md_unregister_thread from reentrancy kernfs: Separate kernfs_pr_cont_buf and rename_lock. serial: msm_serial: disable interrupts in __msm_console_write() staging: rtl8712: fix uninit-value in r871xu_drv_init() clocksource/drivers/sp804: Avoid error on multiple instances extcon: Modify extcon device to be created after driver data is set misc: rtsx: set NULL intfdata when probe fails usb: dwc2: gadget: don't reset gadget's driver->bus USB: hcd-pci: Fully suspend across freeze/thaw cycle drivers: usb: host: Fix deadlock in oxu_bus_suspend() drivers: tty: serial: Fix deadlock in sa1100_set_termios() USB: host: isp116x: check return value after calling platform_get_resource() drivers: staging: rtl8192e: Fix deadlock in rtllib_beacons_stop() tty: Fix a possible resource leak in icom_probe tty: synclink_gt: Fix null-pointer-dereference in slgt_clean() lkdtm/usercopy: Expand size of "out of frame" object iio: dummy: iio_simple_dummy: check the return value of kstrdup() drm: imx: fix compiler warning with gcc-12 net: altera: Fix refcount leak in altera_tse_mdio_create net: ipv6: unexport __init-annotated seg6_hmac_init() net: xfrm: unexport __init-annotated xfrm4_protocol_init() net: mdio: unexport __init-annotated mdio_bus_init() SUNRPC: Fix the calculation of xdr->end in xdr_get_next_encode_buffer() net/mlx4_en: Fix wrong return value on ioctl EEPROM query failure ata: pata_octeon_cf: Fix refcount leak in octeon_cf_probe xprtrdma: treat all calls not a bcall when bc_serv is NULL video: fbdev: pxa3xx-gcu: release the resources correctly in pxa3xx_gcu_probe/remove() m68knommu: fix undefined reference to `_init_sp' m68knommu: set ZERO_PAGE() to the allocated zeroed page i2c: cadence: Increase timeout per message if necessary tracing: Avoid adding tracer option before update_tracer_options tracing: Fix sleeping function called from invalid context on RT kernel mips: cpc: Fix refcount leak in mips_cpc_default_phys_base perf c2c: Fix sorting in percent_rmt_hitm_cmp() tcp: tcp_rtx_synack() can be called from process context ubi: ubi_create_volume: Fix use-after-free when volume creation failed jffs2: fix memory leak in jffs2_do_fill_super modpost: fix removing numeric suffixes net: dsa: mv88e6xxx: Fix refcount leak in mv88e6xxx_mdios_register net: ethernet: mtk_eth_soc: out of bounds read in mtk_hwlro_get_fdir_entry() clocksource/drivers/oxnas-rps: Fix irq_of_parse_and_map() return value firmware: dmi-sysfs: Fix memory leak in dmi_sysfs_register_handle serial: st-asc: Sanitize CSIZE and correct PARENB for CS7 serial: sh-sci: Don't allow CS5-6 serial: txx9: Don't allow CS5-6 serial: digicolor-usart: Don't allow CS5-6 serial: meson: acquire port->lock in startup() rtc: mt6397: check return value after calling platform_get_resource() soc: rockchip: Fix refcount leak in rockchip_grf_init coresight: cpu-debug: Replace mutex with mutex_trylock on panic notifier rpmsg: qcom_smd: Fix irq_of_parse_and_map() return value pwm: lp3943: Fix duty calculation in case period was clamped USB: storage: karma: fix rio_karma_init return usb: usbip: add missing device lock on tweak configuration cmd usb: usbip: fix a refcount leak in stub_probe() tty: goldfish: Use tty_port_destroy() to destroy port staging: greybus: codecs: fix type confusion of list iterator variable pcmcia: db1xxx_ss: restrict to MIPS_DB1XXX boards netfilter: nf_tables: disallow non-stateful expression in sets earlier MIPS: IP27: Remove incorrect `cpu_has_fpu' override RDMA/rxe: Generate a completion for unsupported/invalid opcode phy: qcom-qmp: fix reset-controller leak on probe errors dt-bindings: gpio: altera: correct interrupt-cells docs/conf.py: Cope with removal of language=None in Sphinx 5.0.0 phy: qcom-qmp: fix struct clk leak on probe errors arm64: dts: qcom: ipq8074: fix the sleep clock frequency gma500: fix an incorrect NULL check on list iterator carl9170: tx: fix an incorrect use of list iterator ASoC: rt5514: Fix event generation for "DSP Voice Wake Up" control rtl818x: Prevent using not initialized queues hugetlb: fix huge_pmd_unshare address update nodemask.h: fix compilation error with GCC12 iommu/msm: Fix an incorrect NULL check on list iterator um: Fix out-of-bounds read in LDT setup um: chan_user: Fix winch_tramp() return value mac80211: upgrade passive scan to active scan on DFS channels after beacon rx irqchip: irq-xtensa-mx: fix initial IRQ affinity irqchip/armada-370-xp: Do not touch Performance Counter Overflow on A375, A38x, A39x RDMA/hfi1: Fix potential integer multiplication overflow errors md: fix an incorrect NULL check in md_reload_sb md: fix an incorrect NULL check in does_sb_need_changing drm/bridge: analogix_dp: Grab runtime PM reference for DP-AUX drm/nouveau/clk: Fix an incorrect NULL check on list iterator drm/amdgpu/cs: make commands with 0 chunks illegal behaviour. scsi: ufs: qcom: Add a readl() to make sure ref_clk gets enabled scsi: dc395x: Fix a missing check on list iterator ocfs2: dlmfs: fix error handling of user_dlm_destroy_lock dlm: fix missing lkb refcount handling dlm: fix plock invalid read ext4: avoid cycles in directory h-tree ext4: verify dir block before splitting it ext4: fix bug_on in ext4_writepages ext4: fix use-after-free in ext4_rename_dir_prepare fs-writeback: writeback_sb_inodes:Recalculate 'wrote' according skipped pages iwlwifi: mvm: fix assert 1F04 upon reconfig wifi: mac80211: fix use-after-free in chanctx code perf jevents: Fix event syntax error caused by ExtSel perf c2c: Use stdio interface if slang is not supported iommu/amd: Increase timeout waiting for GA log enablement video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup iommu/mediatek: Add list_del in mtk_iommu_remove mailbox: forward the hrtimer if not queued and under a lock powerpc/fsl_rio: Fix refcount leak in fsl_rio_setup powerpc/perf: Fix the threshold compare group constraint for power9 Input: sparcspkr - fix refcount leak in bbc_beep_probe tty: fix deadlock caused by calling printk() under tty_port->lock powerpc/4xx/cpm: Fix return value of __setup() handler powerpc/idle: Fix return value of __setup() handler powerpc/8xx: export 'cpm_setbrg' for modules drivers/base/node.c: fix compaction sysfs file leak pinctrl: mvebu: Fix irq_of_parse_and_map() return value scsi: fcoe: Fix Wstringop-overflow warnings in fcoe_wwn_from_mac() mfd: ipaq-micro: Fix error check return value of platform_get_irq() ARM: dts: bcm2835-rpi-b: Fix GPIO line names ARM: dts: bcm2835-rpi-zero-w: Fix GPIO line name for Wifi/BT soc: qcom: smsm: Fix missing of_node_put() in smsm_parse_ipc soc: qcom: smp2p: Fix missing of_node_put() in smp2p_parse_ipc rxrpc: Don't try to resend the request if we're receiving the reply rxrpc: Fix listen() setting the bar too high for the prealloc rings ASoC: wm2000: fix missing clk_disable_unprepare() on error in wm2000_anc_transition() sctp: read sk->sk_bound_dev_if once in sctp_rcv() m68k: math-emu: Fix dependencies of math emulation support Bluetooth: fix dangling sco_conn and use-after-free in sco_sock_timeout media: pvrusb2: fix array-index-out-of-bounds in pvr2_i2c_core_init media: exynos4-is: Change clk_disable to clk_disable_unprepare media: st-delta: Fix PM disable depth imbalance in delta_probe regulator: pfuze100: Fix refcount leak in pfuze_parse_regulators_dt ASoC: mxs-saif: Fix refcount leak in mxs_saif_probe media: uvcvideo: Fix missing check to determine if element is found in list drm/msm: return an error pointer in msm_gem_prime_get_sg_table() x86/mm: Cleanup the control_va_addr_alignment() __setup handler irqchip/aspeed-i2c-ic: Fix irq_of_parse_and_map() return value x86: Fix return value of __setup handlers drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() drm/msm/hdmi: check return value after calling platform_get_resource_byname() drm/msm/dsi: fix error checks and return values for DSI xmit functions x86/pm: Fix false positive kmemleak report in msr_build_context() fsnotify: fix wrong lockdep annotations inotify: show inotify mask flags in proc fdinfo ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix spi: img-spfi: Fix pm_runtime_get_sync() error checking HID: hid-led: fix maximum brightness for Dream Cheeky efi: Add missing prototype for efi_capsule_setup_info NFC: NULL out the dev->rfkill to prevent UAF spi: spi-ti-qspi: Fix return value handling of wait_for_completion_timeout drm/mediatek: Fix mtk_cec_mask() x86/delay: Fix the wrong asm constraint in delay_loop() ASoC: mediatek: Fix missing of_node_put in mt2701_wm8960_machine_probe ASoC: mediatek: Fix error handling in mt8173_max98090_dev_probe ath9k: fix ar9003_get_eepmisc drm: fix EDID struct for old ARM OABI format RDMA/hfi1: Prevent panic when SDMA is disabled macintosh/via-pmu: Fix build failure when CONFIG_INPUT is disabled powerpc/xics: fix refcount leak in icp_opal_init() tracing: incorrect isolate_mote_t cast in mm_vmscan_lru_isolate PCI: Avoid pci_dev_lock() AB/BA deadlock with sriov_numvfs_store() ARM: hisi: Add missing of_node_put after of_find_compatible_node ARM: dts: exynos: add atmel,24c128 fallback to Samsung EEPROM ARM: versatile: Add missing of_node_put in dcscb_init fat: add ratelimit to fat*_ent_bread() ARM: OMAP1: clock: Fix UART rate reporting algorithm fs: jfs: fix possible NULL pointer dereference in dbFree() ARM: dts: ox820: align interrupt controller node name with dtschema eth: tg3: silence the GCC 12 array-bounds warning rxrpc: Return an error to sendmsg if call failed media: exynos4-is: Fix compile warning net: phy: micrel: Allow probing without .driver_data ASoC: rt5645: Fix errorenous cleanup order nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags openrisc: start CPU timer early in boot rtlwifi: Use pr_warn instead of WARN_ONCE ipmi:ssif: Check for NULL msg when handling events and messages dma-debug: change allocation mode from GFP_NOWAIT to GFP_ATIOMIC s390/preempt: disable __preempt_count_add() optimization for PROFILE_ALL_BRANCHES ASoC: dapm: Don't fold register value changes into notifications ipv6: Don't send rs packets to the interface of ARPHRD_TUNNEL drm/amd/pm: fix the compile warning scsi: megaraid: Fix error check return value of register_chrdev() media: cx25821: Fix the warning when removing the module media: pci: cx23885: Fix the error handling in cx23885_initdev() media: venus: hfi: avoid null dereference in deinit ath9k: fix QCA9561 PA bias level drm/amd/pm: fix double free in si_parse_power_table() ALSA: jack: Access input_dev under mutex ACPICA: Avoid cache flush inside virtual machines ipw2x00: Fix potential NULL dereference in libipw_xmit() b43: Fix assigning negative value to unsigned variable b43legacy: Fix assigning negative value to unsigned variable mwifiex: add mutex lock for call in mwifiex_dfs_chan_sw_work_queue drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes btrfs: repair super block num_devices automatically btrfs: add "0x" prefix for unsupported optional features ptrace: Reimplement PTRACE_KILL by always sending SIGKILL ptrace/xtensa: Replace PT_SINGLESTEP with TIF_SINGLESTEP USB: new quirk for Dell Gen 2 devices USB: serial: option: add Quectel BG95 modem binfmt_flat: do not stop relocating GOT entries prematurely on riscv |
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63959c5833 |
m68k: use fallback for random_get_entropy() instead of zero
commit 0f392c95391f2d708b12971a07edaa7973f9eece upstream. In the event that random_get_entropy() can't access a cycle counter or similar, falling back to returning 0 is really not the best we can do. Instead, at least calling random_get_entropy_fallback() would be preferable, because that always needs to return _something_, even falling back to jiffies eventually. It's not as though random_get_entropy_fallback() is super high precision or guaranteed to be entropic, but basically anything that's not zero all the time is better than returning zero all the time. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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8168018761 |
m68knommu: fix undefined reference to `_init_sp'
[ Upstream commit a71b9e66fee47c59b3ec34e652b5c23bc6550794 ] When configuring a nommu classic m68k system enabling the uboot parameter passing support (CONFIG_UBOOT) will produce the following compile error: m68k-linux-ld: arch/m68k/kernel/uboot.o: in function `process_uboot_commandline': uboot.c:(.init.text+0x32): undefined reference to `_init_sp' The logic to support this option is only used on ColdFire based platforms (in its head.S startup code). So make the selection of this option depend on building for a ColdFire based platform. Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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bcbca17f63 |
m68knommu: set ZERO_PAGE() to the allocated zeroed page
[ Upstream commit dc068f46217970d9516f16cd37972a01d50dc055 ] The non-MMU m68k pagetable ZERO_PAGE() macro is being set to the somewhat non-sensical value of "virt_to_page(0)". The zeroth page is not in any way guaranteed to be a page full of "0". So the result is that ZERO_PAGE() will almost certainly contain random values. We already allocate a real "empty_zero_page" in the mm setup code shared between MMU m68k and non-MMU m68k. It is just not hooked up to the ZERO_PAGE() macro for the non-MMU m68k case. Fix ZERO_PAGE() to use the allocated "empty_zero_page" pointer. I am not aware of any specific issues caused by the old code. Link: https://lore.kernel.org/linux-m68k/2a462b23-5b8e-bbf4-ec7d-778434a3b9d7@google.com/T/#t Reported-by: Hugh Dickens <hughd@google.com> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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7f1577c4bf |
m68k: math-emu: Fix dependencies of math emulation support
[ Upstream commit ed6bc6bf0a7d75e80eb1df883c09975ebb74e590 ] If CONFIG_M54xx=y, CONFIG_MMU=y, and CONFIG_M68KFPU_EMU=y: {standard input}:272: Error: invalid instruction for this architecture; needs 68000 or higher (68000 [68ec000, 68hc000, 68hc001, 68008, 68302, 68306, 68307, 68322, 68356], 68010, 68020 [68k, 68ec020], 68030 [68ec030], 68040 [68ec040], 68060 [68ec060], cpu32 [68330, 68331, 68332, 68333, 68334, 68336, 68340, 68341, 68349, 68360], fidoa [fido]) -- statement `sub.b %d1,%d3' ignored {standard input}:609: Error: invalid instruction for this architecture; needs 68020 or higher (68020 [68k, 68ec020], 68030 [68ec030], 68040 [68ec040], 68060 [68ec060]) -- statement `bfextu 4(%a1){%d0,#8},%d0' ignored {standard input}:752: Error: operands mismatch -- statement `mulu.l 4(%a0),%d3:%d0' ignored {standard input}:1155: Error: operands mismatch -- statement `divu.l %d0,%d3:%d7' ignored The math emulation support code is intended for 68020 and higher, and uses several instructions or instruction modes not available on coldfire or 68000. Originally, the dependency of M68KFPU_EMU on MMU was fine, as MMU support was only available on 68020 or higher. But this assumption was broken by the introduction of MMU support for M547x and M548x. Drop the dependency on MMU, as the code should work fine on 68020 and up without MMU (which are not yet supported by Linux, though). Add dependencies on M68KCLASSIC (to rule out Coldfire) and FPU (kernel has some type of floating-point support --- be it hardware or software emulated, to rule out anything below 68020). Fixes: 1f7034b9616e6f14 ("m68k: allow ColdFire 547x and 548x CPUs to be built with MMU enabled") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Greg Ungerer <gerg@linux-m68k.org> Link: https://lore.kernel.org/r/18c34695b7c95107f60ccca82a4ff252f3edf477.1652446117.git.geert@linux-m68k.org Signed-off-by: Sasha Levin <sashal@kernel.org> |
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9c9d8b0a60
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lib: optimize cpumask_next_and()
We've measured that we spend ~0.6% of sys cpu time in cpumask_next_and(). It's essentially a joined iteration in search for a non-zero bit, which is currently implemented as a lookup join (find a nonzero bit on the lhs, lookup the rhs to see if it's set there). Implement a direct join (find a nonzero bit on the incrementally built join). Also add generic bitmap benchmarks in the new `test_find_bit` module for new function (see `find_next_and_bit` in [2] and [3] below). For cpumask_next_and, direct benchmarking shows that it's 1.17x to 14x faster with a geometric mean of 2.1 on 32 CPUs [1]. No impact on memory usage. Note that on Arm, the new pure-C implementation still outperforms the old one that uses a mix of C and asm (`find_next_bit`) [3]. [1] Approximate benchmark code: ``` unsigned long src1p[nr_cpumask_longs] = {pattern1}; unsigned long src2p[nr_cpumask_longs] = {pattern2}; for (/*a bunch of repetitions*/) { for (int n = -1; n <= nr_cpu_ids; ++n) { asm volatile("" : "+rm"(src1p)); // prevent any optimization asm volatile("" : "+rm"(src2p)); unsigned long result = cpumask_next_and(n, src1p, src2p); asm volatile("" : "+rm"(result)); } } ``` Results: pattern1 pattern2 time_before/time_after 0x0000ffff 0x0000ffff 1.65 0x0000ffff 0x00005555 2.24 0x0000ffff 0x00001111 2.94 0x0000ffff 0x00000000 14.0 0x00005555 0x0000ffff 1.67 0x00005555 0x00005555 1.71 0x00005555 0x00001111 1.90 0x00005555 0x00000000 6.58 0x00001111 0x0000ffff 1.46 0x00001111 0x00005555 1.49 0x00001111 0x00001111 1.45 0x00001111 0x00000000 3.10 0x00000000 0x0000ffff 1.18 0x00000000 0x00005555 1.18 0x00000000 0x00001111 1.17 0x00000000 0x00000000 1.25 ----------------------------- geo.mean 2.06 [2] test_find_next_bit, X86 (skylake) [ 3913.477422] Start testing find_bit() with random-filled bitmap [ 3913.477847] find_next_bit: 160868 cycles, 16484 iterations [ 3913.477933] find_next_zero_bit: 169542 cycles, 16285 iterations [ 3913.478036] find_last_bit: 201638 cycles, 16483 iterations [ 3913.480214] find_first_bit: 4353244 cycles, 16484 iterations [ 3913.480216] Start testing find_next_and_bit() with random-filled bitmap [ 3913.481074] find_next_and_bit: 89604 cycles, 8216 iterations [ 3913.481075] Start testing find_bit() with sparse bitmap [ 3913.481078] find_next_bit: 2536 cycles, 66 iterations [ 3913.481252] find_next_zero_bit: 344404 cycles, 32703 iterations [ 3913.481255] find_last_bit: 2006 cycles, 66 iterations [ 3913.481265] find_first_bit: 17488 cycles, 66 iterations [ 3913.481266] Start testing find_next_and_bit() with sparse bitmap [ 3913.481272] find_next_and_bit: 764 cycles, 1 iterations [3] test_find_next_bit, arm (v7 odroid XU3). [ 267.206928] Start testing find_bit() with random-filled bitmap [ 267.214752] find_next_bit: 4474 cycles, 16419 iterations [ 267.221850] find_next_zero_bit: 5976 cycles, 16350 iterations [ 267.229294] find_last_bit: 4209 cycles, 16419 iterations [ 267.279131] find_first_bit: 1032991 cycles, 16420 iterations [ 267.286265] Start testing find_next_and_bit() with random-filled bitmap [ 267.302386] find_next_and_bit: 2290 cycles, 8140 iterations [ 267.309422] Start testing find_bit() with sparse bitmap [ 267.316054] find_next_bit: 191 cycles, 66 iterations [ 267.322726] find_next_zero_bit: 8758 cycles, 32703 iterations [ 267.329803] find_last_bit: 84 cycles, 66 iterations [ 267.336169] find_first_bit: 4118 cycles, 66 iterations [ 267.342627] Start testing find_next_and_bit() with sparse bitmap [ 267.356919] find_next_and_bit: 91 cycles, 1 iterations [courbet@google.com: v6] Link: http://lkml.kernel.org/r/20171129095715.23430-1-courbet@google.com [geert@linux-m68k.org: m68k/bitops: always include <asm-generic/bitops/find.h>] Link: http://lkml.kernel.org/r/1512556816-28627-1-git-send-email-geert@linux-m68k.org Link: http://lkml.kernel.org/r/20171128131334.23491-1-courbet@google.com Signed-off-by: Clement Courbet <courbet@google.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Yury Norov <ynorov@caviumnetworks.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: alk3pInjection <webmaster@raspii.tech> Signed-off-by: azrim <mirzaspc@gmail.com> |
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6ec1655832 |
m68k: set a default value for MEMORY_RESERVE
[ Upstream commit 1aaa557b2db95c9506ed0981bc34505c32d6b62b ] 'make randconfig' can produce a .config file with "CONFIG_MEMORY_RESERVE=" (no value) since it has no default. When a subsequent 'make all' is done, kconfig restarts the config and prompts for a value for MEMORY_RESERVE. This breaks scripting/automation where there is no interactive user input. Add a default value for MEMORY_RESERVE. (Any integer value will work here for kconfig.) Fixes a kconfig warning: .config:214:warning: symbol value '' invalid for MEMORY_RESERVE * Restart config... Memory reservation (MiB) (MEMORY_RESERVE) [] (NEW) Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") # from beginning of git history Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: linux-m68k@lists.linux-m68k.org Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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2d6c29df60 |
m68k: Handle arrivals of multiple signals correctly
[ Upstream commit 4bb0bd81ce5e97092dfda6a106d414b703ec0ee8 ] When we have several pending signals, have entered with the kernel with large exception frame *and* have already built at least one sigframe, regs->stkadj is going to be non-zero and regs->format/sr/pc are going to be junk - the real values are in shifted exception stack frame we'd built when putting together the first sigframe. If that happens, subsequent sigframes are going to be garbage. Not hard to fix - just need to find the "adjusted" frame first and look for format/vector/sr/pc in it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Tested-by: Michael Schmitz <schmitzmic@gmail.com> Reviewed-by: Michael Schmitz <schmitzmic@gmail.com> Tested-by: Finn Thain <fthain@linux-m68k.org> Link: https://lore.kernel.org/r/YP2dBIAPTaVvHiZ6@zeniv-ca.linux.org.uk Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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e8bbc24fba |
m68k: Double cast io functions to unsigned long
[ Upstream commit b1a89856fbf63fffde6a4771d8f1ac21df549e50 ] m68k builds fail widely with errors such as arch/m68k/include/asm/raw_io.h:20:19: error: cast to pointer from integer of different size arch/m68k/include/asm/raw_io.h:30:32: error: cast to pointer from integer of different size [-Werror=int-to-p On m68k, io functions are defined as macros. The problem is seen if the macro parameter variable size differs from the size of a pointer. Cast the parameter of all io macros to unsigned long before casting it to a pointer to fix the problem. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Link: https://lore.kernel.org/r/20210907060729.2391992-1-linux@roeck-us.net Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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06cb2d648f |
m68k: emu: Fix invalid free in nfeth_cleanup()
[ Upstream commit 761608f5cf70e8876c2f0e39ca54b516bdcb7c12 ] In the for loop all nfeth_dev array members should be freed, not only the first one. Freeing only the first array member can cause double-free bugs and memory leaks. Fixes: 9cd7b148312f ("m68k/atari: ARAnyM - Add support for network access") Signed-off-by: Pavel Skripkin <paskripkin@gmail.com> Link: https://lore.kernel.org/r/20210705204727.10743-1-paskripkin@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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d66da05c7b |
m68k: q40: Fix info-leak in rtc_ioctl
[ Upstream commit 7cf78b6b12fd5550545e4b73b35dca18bd46b44c ] When the option is RTC_PLL_GET, pll will be copied to userland via copy_to_user. pll is initialized using mach_get_rtc_pll indirect call and mach_get_rtc_pll is only assigned with function q40_get_rtc_pll in arch/m68k/q40/config.c. In function q40_get_rtc_pll, the field pll_ctrl is not initialized. This will leak uninitialized stack content to userland. Fix this by zeroing the uninitialized field. Signed-off-by: Fuqian Huang <huangfq.daxian@gmail.com> Link: https://lore.kernel.org/r/20190927121544.7650-1-huangfq.daxian@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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951e12c66e |
m68knommu: fix overwriting of bits in ColdFire V3 cache control
[ Upstream commit bdee0e793cea10c516ff48bf3ebb4ef1820a116b ] The Cache Control Register (CACR) of the ColdFire V3 has bits that control high level caching functions, and also enable/disable the use of the alternate stack pointer register (the EUSP bit) to provide separate supervisor and user stack pointer registers. The code as it is today will blindly clear the EUSP bit on cache actions like invalidation. So it is broken for this case - and that will result in failed booting (interrupt entry and exit processing will be completely hosed). This only affects ColdFire V3 parts that support the alternate stack register (like the 5329 for example) - generally speaking new parts do, older parts don't. It has no impact on ColdFire V3 parts with the single stack pointer, like the 5307 for example. Fix the cache bit defines used, so they maintain the EUSP bit when carrying out cache actions through the CACR register. Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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06681b8e26 |
m68k: mac: Fix IOP status/control register writes
[ Upstream commit 931fc82a6aaf4e2e4a5490addaa6a090d78c24a7 ] When writing values to the IOP status/control register make sure those values do not have any extraneous bits that will clear interrupt flags. To place the SCC IOP into bypass mode would be desirable but this is not achieved by writing IOP_DMAINACTIVE | IOP_RUN | IOP_AUTOINC | IOP_BYPASS to the control register. Drop this ineffective register write. Remove the flawed and unused iop_bypass() function. Make use of the unused iop_stop() function. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Stan Johnson <userm57@yahoo.com> Cc: Joshua Thompson <funaho@jurai.org> Link: https://lore.kernel.org/r/09bcb7359a1719a18b551ee515da3c4c3cf709e6.1590880333.git.fthain@telegraphics.com.au Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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275ae397e4 |
m68k: mac: Don't send IOP message until channel is idle
[ Upstream commit aeb445bf2194d83e12e85bf5c65baaf1f093bd8f ] In the following sequence of calls, iop_do_send() gets called when the "send" channel is not in the IOP_MSG_IDLE state: iop_ism_irq() iop_handle_send() (msg->handler)() iop_send_message() iop_do_send() Avoid this by testing the channel state before calling iop_do_send(). When sending, and iop_send_queue is empty, call iop_do_send() because the channel is idle. If iop_send_queue is not empty, iop_do_send() will get called later by iop_handle_send(). Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Tested-by: Stan Johnson <userm57@yahoo.com> Cc: Joshua Thompson <funaho@jurai.org> Link: https://lore.kernel.org/r/6d667c39e53865661fa5a48f16829d18ed8abe54.1590880333.git.fthain@telegraphics.com.au Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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66f3c8e5d3 |
m68k/PCI: Fix a memory leak in an error handling path
[ Upstream commit c3f4ec050f56eeab7c1f290321f9b762c95bd332 ] If 'ioremap' fails, we must free 'bridge', as done in other error handling path bellow. Fixes: 19cc4c843f40 ("m68k/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks") Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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5a7acfe428 |
m68k: mac: Don't call via_flush_cache() on Mac IIfx
[ Upstream commit bcc44f6b74106b31f0b0408b70305a40360d63b7 ] There is no VIA2 chip on the Mac IIfx, so don't call via_flush_cache(). This avoids a boot crash which appeared in v5.4. printk: console [ttyS0] enabled printk: bootconsole [debug0] disabled printk: bootconsole [debug0] disabled Calibrating delay loop... 9.61 BogoMIPS (lpj=48064) pid_max: default: 32768 minimum: 301 Mount-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) Mountpoint-cache hash table entries: 1024 (order: 0, 4096 bytes, linear) devtmpfs: initialized random: get_random_u32 called from bucket_table_alloc.isra.27+0x68/0x194 with crng_init=0 clocksource: jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns futex hash table entries: 256 (order: -1, 3072 bytes, linear) NET: Registered protocol family 16 Data read fault at 0x00000000 in Super Data (pc=0x8a6a) BAD KERNEL BUSERR Oops: 00000000 Modules linked in: PC: [<00008a6a>] via_flush_cache+0x12/0x2c SR: 2700 SP: 01c1fe3c a2: 01c24000 d0: 00001119 d1: 0000000c d2: 00012000 d3: 0000000f d4: 01c06840 d5: 00033b92 a0: 00000000 a1: 00000000 Process swapper (pid: 1, task=01c24000) Frame format=B ssw=0755 isc=0200 isb=fff7 daddr=00000000 dobuf=01c1fed0 baddr=00008a6e dibuf=0000004e ver=f Stack from 01c1fec4: 01c1fed0 00007d7e 00010080 01c1fedc 0000792e 00000001 01c1fef4 00006b40 01c80000 00040000 00000006 00000003 01c1ff1c 004a545e 004ff200 00040000 00000000 00000003 01c06840 00033b92 004a5410 004b6c88 01c1ff84 000021e2 00000073 00000003 01c06840 00033b92 0038507a 004bb094 004b6ca8 004b6c88 004b6ca4 004b6c88 000021ae 00020002 00000000 01c0685d 00000000 01c1ffb4 0049f938 00409c85 01c06840 0045bd40 00000073 00000002 00000002 00000000 Call Trace: [<00007d7e>] mac_cache_card_flush+0x12/0x1c [<00010080>] fix_dnrm+0x2/0x18 [<0000792e>] cache_push+0x46/0x5a [<00006b40>] arch_dma_prep_coherent+0x60/0x6e [<00040000>] switched_to_dl+0x76/0xd0 [<004a545e>] dma_atomic_pool_init+0x4e/0x188 [<00040000>] switched_to_dl+0x76/0xd0 [<00033b92>] parse_args+0x0/0x370 [<004a5410>] dma_atomic_pool_init+0x0/0x188 [<000021e2>] do_one_initcall+0x34/0x1be [<00033b92>] parse_args+0x0/0x370 [<0038507a>] strcpy+0x0/0x1e [<000021ae>] do_one_initcall+0x0/0x1be [<00020002>] do_proc_dointvec_conv+0x54/0x74 [<0049f938>] kernel_init_freeable+0x126/0x190 [<0049f94c>] kernel_init_freeable+0x13a/0x190 [<004a5410>] dma_atomic_pool_init+0x0/0x188 [<00041798>] complete+0x0/0x3c [<000b9b0c>] kfree+0x0/0x20a [<0038df98>] schedule+0x0/0xd0 [<0038d604>] kernel_init+0x0/0xda [<0038d610>] kernel_init+0xc/0xda [<0038d604>] kernel_init+0x0/0xda [<00002d38>] ret_from_kernel_thread+0xc/0x14 Code: 0000 2079 0048 10da 2279 0048 10c8 d3c8 <1011> 0200 fff7 1280 d1f9 0048 10c8 1010 0000 0008 1080 4e5e 4e75 4e56 0000 2039 Disabling lock debugging due to kernel taint Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b Thanks to Stan Johnson for capturing the console log and running git bisect. Git bisect said commit 8e3a68fb55e0 ("dma-mapping: make dma_atomic_pool_init self-contained") is the first "bad" commit. I don't know why. Perhaps mach_l2_flush first became reachable with that commit. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Reported-and-tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Cc: Joshua Thompson <funaho@jurai.org> Link: https://lore.kernel.org/r/b8bbeef197d6b3898e82ed0d231ad08f575a4b34.1589949122.git.fthain@telegraphics.com.au Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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4127249099 |
m68k: Call timer_interrupt() with interrupts disabled
[ Upstream commit 1efdd4bd254311498123a15fa0acd565f454da97 ] Some platforms execute their timer handler with the interrupt priority level set below 6. That means the handler could be interrupted by another driver and this could lead to re-entry of the timer core. Avoid this by use of local_irq_save/restore for timer interrupt dispatch. This provides mutual exclusion around the timer interrupt flag access which is needed later in this series for the clocksource conversion. Reported-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/alpine.DEB.2.21.1811131407120.2697@nanos.tec.linutronix.de Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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5bd4bd3e35 |
m68k: mac: Fix VIA timer counter accesses
[ Upstream commit 0ca7ce7db771580433bf24454f7a1542bd326078 ] This resolves some bugs that affect VIA timer counter accesses. Avoid lost interrupts caused by reading the counter low byte register. Make allowance for the fact that the counter will be decremented to 0xFFFF before being reloaded. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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37aeb6076a |
m68k: fix command-line parsing when passed from u-boot
[ Upstream commit 381fdd62c38344a771aed06adaf14aae65c47454 ] This patch fixes command_line array zero-terminated one byte over the end of the array, causing boot to hang. Signed-off-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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1255e28103 |
m68k: Add -ffreestanding to CFLAGS
commit 28713169d879b67be2ef2f84dcf54905de238294 upstream. This patch fixes a build failure when using GCC 8.1: /usr/bin/ld: block/partitions/ldm.o: in function `ldm_parse_tocblock': block/partitions/ldm.c:153: undefined reference to `strcmp' This is caused by a new optimization which effectively replaces a strncmp() call with a strcmp() call. This affects a number of strncmp() call sites in the kernel. The entire class of optimizations is avoided with -fno-builtin, which gets enabled by -ffreestanding. This may avoid possible future build failures in case new optimizations appear in future compilers. I haven't done any performance measurements with this patch but I did count the function calls in a defconfig build. For example, there are now 23 more sprintf() calls and 39 fewer strcpy() calls. The effect on the other libc functions is smaller. If this harms performance we can tackle that regression by optimizing the call sites, ideally using semantic patches. That way, clang and ICC builds might benfit too. Cc: stable@vger.kernel.org Reference: https://marc.info/?l=linux-m68k&m=154514816222244&w=2 Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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e793dc3d97 |
m68k: fix "bad page state" oops on ColdFire boot
[ Upstream commit ecd60532e060e45c63c57ecf1c8549b1d656d34d ] Booting a ColdFire m68k core with MMU enabled causes a "bad page state" oops since commit 1d40a5ea01d5 ("mm: mark pages in use for page tables"): BUG: Bad page state in process sh pfn:01ce2 page:004fefc8 count:0 mapcount:-1024 mapping:00000000 index:0x0 flags: 0x0() raw: 00000000 00000000 00000000 fffffbff 00000000 00000100 00000200 00000000 raw: 039c4000 page dumped because: nonzero mapcount Modules linked in: CPU: 0 PID: 22 Comm: sh Not tainted 4.17.0-07461-g1d40a5ea01d5 #13 Fix by calling pgtable_page_dtor() in our __pte_free_tlb() code path, so that the PG_table flag is cleared before we free the pte page. Note that I had to change the type of pte_free() to be static from extern. Otherwise you get a lot of warnings like this: ./arch/m68k/include/asm/mcf_pgalloc.h:80:2: warning: ‘pgtable_page_dtor’ is static but used in inline function ‘pte_free’ which is not static pgtable_page_dtor(page); ^ And making it static is consistent with our use of this in the other m68k pgalloc definitions of pte_free(). Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> CC: Matthew Wilcox <willy@infradead.org> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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60711b27c5 |
m68k/mac: Fix SWIM memory resource end address
commit 3e2816c1078eb2b5a3276eb83d4da156b3e2d04f upstream. The resource size is 0x2000 == end - start + 1. Therefore end == start + 0x2000 - 1. Cc: Laurent Vivier <lvivier@redhat.com> Cc: stable@vger.kernel.org # v4.14+ Tested-by: Stan Johnson <userm57@yahoo.com> Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Acked-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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da9ad89c72 |
m68k/mm: Adjust VM area to be unmapped by gap size for __iounmap()
commit 3f90f9ef2dda316d64e420d5d51ba369587ccc55 upstream. If 020/030 support is enabled, get_io_area() leaves an IO_SIZE gap between mappings which is added to the vm_struct representing the mapping. __ioremap() uses the actual requested size (after alignment), while __iounmap() is passed the size from the vm_struct. On 020/030, early termination descriptors are used to set up mappings of extent 'size', which are validated on unmapping. The unmapped gap of size IO_SIZE defeats the sanity check of the pmd tables, causing __iounmap() to loop forever on 030. On 040/060, unmapping of page table entries does not check for a valid mapping, so the umapping loop always completes there. Adjust size to be unmapped by the gap that had been added in the vm_struct prior. This fixes the hang in atari_platform_init() reported a long time ago, and a similar one reported by Finn recently (addressed by removing ioremap() use from the SWIM driver. Tested on my Falcon in 030 mode - untested but should work the same on 040/060 (the extra page tables cleared there would never have been set up anyway). Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> [geert: Minor commit description improvements] [geert: This was fixed in 2.4.23, but not in 2.5.x] Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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6a020bb3c6 |
m68k: set dma and coherent masks for platform FEC ethernets
[ Upstream commit f61e64310b75733d782e930d1fb404b84699eed6 ] As of commit 205e1b7f51e4 ("dma-mapping: warn when there is no coherent_dma_mask") the Freescale FEC driver is issuing the following warning on driver initialization on ColdFire systems: WARNING: CPU: 0 PID: 1 at ./include/linux/dma-mapping.h:516 0x40159e20 Modules linked in: CPU: 0 PID: 1 Comm: swapper Not tainted 4.16.0-rc7-dirty #4 Stack from 41833dd8: 41833dd8 40259c53 40025534 40279e26 00000003 00000000 4004e514 41827000 400255de 40244e42 00000204 40159e20 00000009 00000000 00000000 4024531d 40159e20 40244e42 00000204 00000000 00000000 00000000 00000007 00000000 00000000 40279e26 4028d040 40226576 4003ae88 40279e26 418273f6 41833ef8 7fffffff 418273f2 41867028 4003c9a2 4180ac6c 00000004 41833f8c 4013e71c 40279e1c 40279e26 40226c16 4013ced2 40279e26 40279e58 4028d040 00000000 Call Trace: [<40025534>] 0x40025534 [<4004e514>] 0x4004e514 [<400255de>] 0x400255de [<40159e20>] 0x40159e20 [<40159e20>] 0x40159e20 It is not fatal, the driver and the system continue to function normally. As per the warning the coherent_dma_mask is not set on this device. There is nothing special about the DMA memory coherency on this hardware so we can just set the mask to 32bits in the platform data for the FEC ethernet devices. Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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305eb32d45 |
bug.h: work around GCC PR82365 in BUG()
[ Upstream commit 173a3efd3edb2ef6ef07471397c5f542a360e9c1 ] Looking at functions with large stack frames across all architectures led me discovering that BUG() suffers from the same problem as fortify_panic(), which I've added a workaround for already. In short, variables that go out of scope by calling a noreturn function or __builtin_unreachable() keep using stack space in functions afterwards. A workaround that was identified is to insert an empty assembler statement just before calling the function that doesn't return. I'm adding a macro "barrier_before_unreachable()" to document this, and insert calls to that in all instances of BUG() that currently suffer from this problem. The files that saw the largest change from this had these frame sizes before, and much less with my patch: fs/ext4/inode.c:82:1: warning: the frame size of 1672 bytes is larger than 800 bytes [-Wframe-larger-than=] fs/ext4/namei.c:434:1: warning: the frame size of 904 bytes is larger than 800 bytes [-Wframe-larger-than=] fs/ext4/super.c:2279:1: warning: the frame size of 1160 bytes is larger than 800 bytes [-Wframe-larger-than=] fs/ext4/xattr.c:146:1: warning: the frame size of 1168 bytes is larger than 800 bytes [-Wframe-larger-than=] fs/f2fs/inode.c:152:1: warning: the frame size of 1424 bytes is larger than 800 bytes [-Wframe-larger-than=] net/netfilter/ipvs/ip_vs_core.c:1195:1: warning: the frame size of 1068 bytes is larger than 800 bytes [-Wframe-larger-than=] net/netfilter/ipvs/ip_vs_core.c:395:1: warning: the frame size of 1084 bytes is larger than 800 bytes [-Wframe-larger-than=] net/netfilter/ipvs/ip_vs_ftp.c:298:1: warning: the frame size of 928 bytes is larger than 800 bytes [-Wframe-larger-than=] net/netfilter/ipvs/ip_vs_ftp.c:418:1: warning: the frame size of 908 bytes is larger than 800 bytes [-Wframe-larger-than=] net/netfilter/ipvs/ip_vs_lblcr.c:718:1: warning: the frame size of 960 bytes is larger than 800 bytes [-Wframe-larger-than=] drivers/net/xen-netback/netback.c:1500:1: warning: the frame size of 1088 bytes is larger than 800 bytes [-Wframe-larger-than=] In case of ARC and CRIS, it turns out that the BUG() implementation actually does return (or at least the compiler thinks it does), resulting in lots of warnings about uninitialized variable use and leaving noreturn functions, such as: block/cfq-iosched.c: In function 'cfq_async_queue_prio': block/cfq-iosched.c:3804:1: error: control reaches end of non-void function [-Werror=return-type] include/linux/dmaengine.h: In function 'dma_maxpq': include/linux/dmaengine.h:1123:1: error: control reaches end of non-void function [-Werror=return-type] This makes them call __builtin_trap() instead, which should normally dump the stack and kill the current process, like some of the other architectures already do. I tried adding barrier_before_unreachable() to panic() and fortify_panic() as well, but that had very little effect, so I'm not submitting that patch. Vineet said: : For ARC, it is double win. : : 1. Fixes 3 -Wreturn-type warnings : : | ../net/core/ethtool.c:311:1: warning: control reaches end of non-void function : [-Wreturn-type] : | ../kernel/sched/core.c:3246:1: warning: control reaches end of non-void function : [-Wreturn-type] : | ../include/linux/sunrpc/svc_xprt.h:180:1: warning: control reaches end of : non-void function [-Wreturn-type] : : 2. bloat-o-meter reports code size improvements as gcc elides the : generated code for stack return. Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82365 Link: http://lkml.kernel.org/r/20171219114112.939391-1-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Vineet Gupta <vgupta@synopsys.com> [arch/arc] Tested-by: Vineet Gupta <vgupta@synopsys.com> [arch/arc] Cc: Mikael Starvik <starvik@axis.com> Cc: Jesper Nilsson <jesper.nilsson@axis.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Christopher Li <sparse@chrisli.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Kees Cook <keescook@chromium.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: "Steven Rostedt (VMware)" <rostedt@goodmis.org> Cc: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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30791140de |
m68k: add missing SOFTIRQENTRY_TEXT linker section
[ Upstream commit 969de0988b77e5a57aac2f7270191a3c50540c52 ] Commit be7635e7287e ("arch, ftrace: for KASAN put hard/soft IRQ entries into separate sections") added a new linker section, SOFTIRQENTRY_TEXT, to the linker scripts for most architectures. It didn't add it to any of the linker scripts for the m68k architecture. This was not really a problem because it is only defined if either of CONFIG_FUNCTION_GRAPH_TRACER or CONFIG_KASAN are enabled - which can never be true for m68k. However commit 229a71860547 ("irq: Make the irqentry text section unconditional") means that SOFTIRQENTRY_TEXT is now always defined. So on m68k we now end up with a separate ELF section for .softirqentry.text instead of it being part of the .text section. On some m68k targets in some configurations this can also cause a fatal link error: LD vmlinux /usr/local/bin/../m68k-uclinux/bin/ld.real: section .softirqentry.text loaded at [0000000010de10c0,0000000010de12dd] overlaps section .rodata loaded at [0000000010de10c0,0000000010e0fd67] To fix add in the missing SOFTIRQENTRY_TEXT section into the m68k linker scripts. I noticed that m68k is also missing the IRQENTRY_TEXT section, so this patch also adds an entry for that too. Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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162cefc554 |
m68k: fix ColdFire node shift size calculation
[ Upstream commit f55ab8f27548ff3431a6567d400c6757c49fd520 ] The m68k pg_data_table is a fix size array defined in arch/m68k/mm/init.c. Index numbers within it are defined based on memory size. But for Coldfire these don't take into account a non-zero physical RAM base address, and this causes us to access past the end of this array at system start time. Change the node shift calculation so that we keep the index inside its range. Reported-by: Angelo Dureghello <angelo@sysam.it> Tested-by: Angelo Dureghello <angelo@sysam.it> Signed-off-by: Greg Ungerer <gerg@linux-m68k.org> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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e2be04c7f9 |
License cleanup: add SPDX license identifier to uapi header files with a license
Many user space API headers have licensing information, which is either incomplete, badly formatted or just a shorthand for referring to the license under which the file is supposed to be. This makes it hard for compliance tools to determine the correct license. Update these files with an SPDX license identifier. The identifier was chosen based on the license information in the file. GPL/LGPL licensed headers get the matching GPL/LGPL SPDX license identifier with the added 'WITH Linux-syscall-note' exception, which is the officially assigned exception identifier for the kernel syscall exception: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". This exception makes it possible to include GPL headers into non GPL code, without confusing license compliance tools. Headers which have either explicit dual licensing or are just licensed under a non GPL license are updated with the corresponding SPDX identifier and the GPLv2 with syscall exception identifier. The format is: ((GPL-2.0 WITH Linux-syscall-note) OR SPDX-ID-OF-OTHER-LICENSE) SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. The update does not remove existing license information as this has to be done on a case by case basis and the copyright holders might have to be consulted. This will happen in a separate step. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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6f52b16c5b |
License cleanup: add SPDX license identifier to uapi header files with no license
Many user space API headers are missing licensing information, which makes it hard for compliance tools to determine the correct license. By default are files without license information under the default license of the kernel, which is GPLV2. Marking them GPLV2 would exclude them from being included in non GPLV2 code, which is obviously not intended. The user space API headers fall under the syscall exception which is in the kernels COPYING file: NOTE! This copyright does *not* cover user programs that use kernel services by normal system calls - this is merely considered normal use of the kernel, and does *not* fall under the heading of "derived work". otherwise syscall usage would not be possible. Update the files which contain no license information with an SPDX license identifier. The chosen identifier is 'GPL-2.0 WITH Linux-syscall-note' which is the officially assigned identifier for the Linux syscall exception. SPDX license identifiers are a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. See the previous patch in this series for the methodology of how this patch was researched. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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b24413180f |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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64414e5f98 |
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer: "Only two changes. One removes unused code, the other makes local clock code arguments consistent with generic clock code" * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68knommu: remove dead code m68k: allow NULL clock for clk_get_rate |
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4c2b5e0fab |
m68k: Add braces to __pmd(x) initializer to kill compiler warning
With gcc 4.1.2: include/linux/swapops.h: In function ‘swp_entry_to_pmd’: include/linux/swapops.h:294: warning: missing braces around initializer include/linux/swapops.h:294: warning: (near initialization for ‘(anonymous).pmd’) Due to a GCC zero initializer bug (#53119), the standard "(pmd_t){ 0 }" initializer is not accepted by all GCC versions. In addition, on m68k pmd_t is an array instead of a single value, so we need "(pmd_t){ { 0 }, }" instead of "(pmd_t){ 0 }". Based on commit 9157259d16a8 ("mm: add pmd_t initializer __pmd() to work around a GCC bug.") for sparc32. Fixes: 616b8371539a ("mm: thp: enable thp migration in generic path") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |