Joel Stanley 1f33700bdf raid6/ppc: Fix build for clang
commit e213574a449f7a57d4202c1869bbc7680b6b5521 upstream.

We cannot build these files with clang as it does not allow altivec
instructions in assembly when -msoft-float is passed.

Jinsong Ji <jji@us.ibm.com> wrote:
> We currently disable Altivec/VSX support when enabling soft-float.  So
> any usage of vector builtins will break.
>
> Enable Altivec/VSX with soft-float may need quite some clean up work, so
> I guess this is currently a limitation.
>
> Removing -msoft-float will make it work (and we are lucky that no
> floating point instructions will be generated as well).

This is a workaround until the issue is resolved in clang.

Link: https://bugs.llvm.org/show_bug.cgi?id=31177
Link: https://github.com/ClangBuiltLinux/linux/issues/239
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
[nc: Use 'ifeq ($(cc-name),clang)' instead of 'ifdef CONFIG_CC_IS_CLANG'
     because that config does not exist in 4.14; the Kconfig rewrite
     that added that config happened in 4.18]
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-01-13 10:01:04 +01:00
..
2018-03-03 10:24:29 +01:00
2019-01-13 10:01:04 +01:00
2017-08-15 09:02:08 -07:00
2017-06-09 11:52:07 +02:00
2017-02-24 17:46:57 -08:00
2017-05-09 15:40:28 -07:00
2017-02-24 17:46:57 -08:00
2017-10-03 17:54:25 -07:00
2018-02-22 15:42:24 +01:00
2018-02-16 20:23:04 +01:00
2018-12-08 13:03:35 +01:00
2016-12-06 10:17:03 +02:00
2018-09-19 22:43:45 +02:00
2018-12-13 09:18:52 +01:00
2017-08-15 09:02:07 -07:00