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693bf0aa01
The following commit:
5997efb96756 ("x86/boot: Use memremap() to map the MPF and MPC data")
causes new build failures on certain randconfigs:
drivers/sfi/sfi_core.c: In function ‘sfi_map_memory’:
drivers/sfi/sfi_core.c:104:10: error: implicit declaration of function ‘memremap’ [-Werror=implicit-function-declaration]
drivers/sfi/sfi_core.c:104:31: error: ‘MEMREMAP_WB’ undeclared (first use in this function)
This is a case of parasitic header dependencies: the sfi_core.c file indirectly
includes <linux/io.h> for typical - but not all configs.
Including <linux/io.h> explicitly solves the build failure.
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: arnd@arndb.de
Cc: aryabinin@virtuozzo.com
Cc: bp@alien8.de
Cc: bp@suse.de
Cc: brijesh.singh@amd.com
Cc: corbet@lwn.net
Cc: dvyukov@google.com
Cc: dyoung@redhat.com
Cc: glider@google.com
Cc: konrad.wilk@oracle.com
Cc: linux-tip-commits@vger.kernel.org
Cc: luto@kernel.org
Cc: lwoodman@redhat.com
Cc: matt@codeblueprint.co.uk
Cc: mst@redhat.com
Cc: pbonzini@redhat.com
Cc: riel@redhat.com
Cc: rkrcmar@redhat.com
Cc: thomas.lendacky@amd.com
Cc: toshi.kani@hpe.com
Link: http://lkml.kernel.org/r/20170720092307.6xslahuaclmsiffe@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.