Re: [PATCH 2/2] MIPS: set NR_syscall_tables appropriately

[Marcin Nowakowski]

On 27.09.2016 14:04, Ralf Baechle wrote:
> On Mon, Aug 29, 2016 at 11:30:07AM +0200, Marcin Nowakowski wrote:
>
> > Depending on the kernel configuration, up to 3 syscall tables can be
> > used in parallel - so set the number properly to ensure syscall tracing
> > is set up properly.
> >
> > Signed-off-by: Marcin Nowakowski <marcin.nowakowski@xxxxxxxxxx>
> > ---
> >  arch/mips/include/asm/unistd.h | 4 ++++
> >  1 file changed, 4 insertions(+)
> >
> > diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
> > index e558130..71162f3d 100644
> > --- a/arch/mips/include/asm/unistd.h
> > +++ b/arch/mips/include/asm/unistd.h
> > @@ -22,6 +22,10 @@
> >  #define NR_syscalls  (__NR_O32_Linux + __NR_O32_Linux_syscalls)
> >  #endif
> >
> > +#define NR_syscall_tables (1 + \
> > +	IS_ENABLED(CONFIG_MIPS32_O32) + \
> > +	IS_ENABLED(CONFIG_MIPS32_N32))
> > +
> >  #ifndef __ASSEMBLY__
>
> NR_syscall_tables is a new symbol but I don't see any users of this
> symbol?

Hi Ralf,

Patch 1/2 from this series did make use of that symbol.
However, this patch has now been superseded by a slightly different 
approach following a discussion on the original proposal ...

https://lkml.org/lkml/2016/9/16/57

Marcin