Re: [PATCH] compiler: allow all arches to enable CONFIG_OPTIMIZE_INLINING

[Christophe Leroy]

Hi Masahiro,

Le 25/03/2019 Ã 07:44, Masahiro Yamada a ÃcritÂ:
> Hi Christophe,
>
>
> On Sat, Mar 23, 2019 at 5:27 PM LEROY Christophe
> <christophe.leroy@xxxxxx> wrote:
> > Arnd Bergmann <arnd@xxxxxxxx> a Ãcrit :
> >
> > > On Wed, Mar 20, 2019 at 10:41 AM Arnd Bergmann <arnd@xxxxxxxx> wrote:
> > > > I've added your patch to my randconfig test setup and will let you
> > > > know if I see anything noticeable. I'm currently testing clang-arm32,
> > > > clang-arm64 and gcc-x86.
> > >
> > > This is the only additional bug that has come up so far:
> > >
> > > `.exit.text' referenced in section `.alt.smp.init' of
> > > drivers/char/ipmi/ipmi_msghandler.o: defined in discarded section
> > > `exit.text' of drivers/char/ipmi/ipmi_msghandler.o
> >
> > Wouldn't it be useful to activate -Winline gcc warning to ease finding
> > out problematic usage of inline keyword ?
>
>
> Yes, it is useful to find out
> which function is causing the error.
> Thanks for the tip.

I did a mass build on kisskb. Almost ok, see results at 
http://kisskb.ellerman.id.au/kisskb/head/203d912edf8dde291977c71aa64024065e197f79/

ps3_defconfig with GCC 5 fails 
(http://kisskb.ellerman.id.au/kisskb/buildresult/13742711/) with:

arch/powerpc/mm/tlb-radix.c:148:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]
arch/powerpc/mm/tlb-radix.c:148:2: error: impossible constraint in 'asm'
arch/powerpc/mm/tlb-radix.c:118:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]
arch/powerpc/mm/tlb-radix.c:104:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]

ps3_defconfig with GCC 4.6 fails 
(http://kisskb.ellerman.id.au/kisskb/buildresult/13742591/) with:

arch/powerpc/mm/tlb-radix.c:148:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]
arch/powerpc/mm/tlb-radix.c:118:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]
arch/powerpc/mm/tlb-radix.c:104:2: error: asm operand 3 probably doesn't 
match constraints [-Werror]

randconfig with GCC 4.6 fails 
(http://kisskb.ellerman.id.au/kisskb/buildresult/13742698/) with:

arch/powerpc/mm/tlb-radix.c:104:2: error: impossible constraint in 'asm'

Christophe