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Re: [PATCH] powerpc: Enable demuxed sysv IPC syscalls
- From: Arnd Bergmann <arnd at arndb dot de>
- To: libc-alpha at sourceware dot org
- Cc: Michael Ellerman <mpe at ellerman dot id dot au>, Andreas Schwab <schwab at linux-m68k dot org>, "Paul E. Murphy" <murphyp at linux dot vnet dot ibm dot com>, Tulio Magno Quites Machado Filho <tuliom at linux dot vnet dot ibm dot com>, Sam Bobroff <sam dot bobroff at au1 dot ibm dot com>
- Date: Tue, 22 Dec 2015 22:46:08 +0100
- Subject: Re: [PATCH] powerpc: Enable demuxed sysv IPC syscalls
- Authentication-results: sourceware.org; auth=none
- References: <5660A8D0 dot 5090003 at linux dot vnet dot ibm dot com> <33748624 dot hfkKJbjDvz at wuerfel> <1450741399 dot 14223 dot 1 dot camel at ellerman dot id dot au>
On Tuesday 22 December 2015, Michael Ellerman wrote:
>
> On Wed, 2015-12-16 at 11:36 +0100, Arnd Bergmann wrote:
>
> > On Wednesday 16 December 2015 21:26:11 Michael Ellerman wrote:
>
> > >
> > > I think it's also important not to #define __NR_semop etc. right? Otherwise
> > > userspace code might be doing #ifdef __NR_semop to detect whether that syscall
> > > is implemented.
> > >
> > > So the kernel revert patch becomes:
> > >
> >
> > Acked-by: Arnd Bergmann <arnd@arndb.de>
> >
> > Looks good, we just need someone to do the kernel rework now, so we can get them
> > back the right way for 4.5.
>
> OK. The patch you posted looked pretty simple, is there more required than
> that?
Yes: we need to do the same thing for all three syscalls that are affected,
and it needs to be tested.
Arnd