On Wed, Apr 11, 2018 at 12:08:51PM +0200, Arnd Bergmann wrote: > On Wed, Apr 11, 2018 at 11:54 AM, James Hogan <jhogan@xxxxxxxxxx> wrote: > > On Wed, Apr 11, 2018 at 09:30:56AM +0200, Arnd Bergmann wrote: > >> On Wed, Apr 11, 2018 at 12:48 AM, James Hogan <jhogan@xxxxxxxxxx> wrote: > >> > Before I forward port those patches to add .insn for MIPS, is that sort > >> > of approach (an arch specific asm/compiler-gcc.h to allow MIPS to > >> > override barrier_before_unreachable()) an acceptable fix? > >> > >> That sounds fine to me. However, I would suggest making that > >> asm/compiler.h instead of asm/compiler-gcc.h, so we can also > >> use the same file to include workarounds for clang if needed. > > > > Yes, though there are a few asm/compiler.h's already, and the alpha one > > includes linux/compiler.h before undefining inline, so seems to have its > > own specific purpose... > > Interesting. For the other ones, including asm/compiler.h from linux/compiler.h > seems appropriate though, so the question would be what to do with the > alpha case. I think we can simply remove that header file and replace > it with this patch: > > diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig > index b2022885ced8..5502404f54cd 100644 > --- a/arch/alpha/Kconfig > +++ b/arch/alpha/Kconfig > @@ -81,6 +81,9 @@ config PGTABLE_LEVELS > int > default 3 > > +config OPTIMIZE_INLINING > + def_bool y > + > source "init/Kconfig" > source "kernel/Kconfig.freezer" > > which should have the same effect. Hmm yes, and I suppose alpha would need ARCH_SUPPORTS_OPTIMIZED_INLINING too. I'll give it a try. Cheers James
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