lkml.org 
[lkml]   [2018]   [Mar]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 17/21] powerpc: Add missing prototype for sys_debug_setcontext
Date
Mathieu Malaterre <malat@debian.org> writes:

> In commit 81e7009ea46c ("powerpc: merge ppc signal.c and ppc64 signal32.c")
> the function sys_debug_setcontext was added without a prototype.
>
> Fix compilation warning (treated as error in W=1):
>
> CC arch/powerpc/kernel/signal_32.o
> arch/powerpc/kernel/signal_32.c:1227:5: error: no previous prototype for ‘sys_debug_setcontext’ [-Werror=missing-prototypes]
> int sys_debug_setcontext(struct ucontext __user *ctx,
> ^~~~~~~~~~~~~~~~~~~~
> cc1: all warnings being treated as errors

This one should actually be using the SYSCALL_DEFINE syntax, so that it
can be used with CONFIG_FTRACE_SYSCALLS.

See eg. our mmap:

SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len,
unsigned long, prot, unsigned long, flags,
unsigned long, fd, off_t, offset)
{
return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT);
}


We probably still need this patch, but I'm not entirely sure because the
SYSCALL_DEFINE macro does all sorts of shenanigans.

cheers

\
 
 \ /
  Last update: 2018-03-04 11:55    [W:0.364 / U:1.404 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site