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    Subject[PATCH 18/21] powerpc: Add missing prototypes for sys_sigreturn & sys_rt_sigreturn
    Date
    Two functions did not have a prototype defined in signal.h header. Fix the
    following two warnings (treated as errors in W=1):

    CC arch/powerpc/kernel/signal_32.o
    arch/powerpc/kernel/signal_32.c:1135:6: error: no previous prototype for ‘sys_rt_sigreturn’ [-Werror=missing-prototypes]
    long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
    ^~~~~~~~~~~~~~~~
    arch/powerpc/kernel/signal_32.c:1422:6: error: no previous prototype for ‘sys_sigreturn’ [-Werror=missing-prototypes]
    long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
    ^~~~~~~~~~~~~
    cc1: all warnings being treated as errors

    Signed-off-by: Mathieu Malaterre <malat@debian.org>
    ---
    arch/powerpc/kernel/signal.h | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
    index 7c59d88b9d86..a6467f843acf 100644
    --- a/arch/powerpc/kernel/signal.h
    +++ b/arch/powerpc/kernel/signal.h
    @@ -49,6 +49,11 @@ extern int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,

    #else /* CONFIG_PPC64 */

    +extern long sys_rt_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
    + struct pt_regs *regs);
    +extern long sys_sigreturn(int r3, int r4, int r5, int r6, int r7, int r8,
    + struct pt_regs *regs);
    +
    static inline int handle_rt_signal64(struct ksignal *ksig, sigset_t *set,
    struct task_struct *tsk)
    {
    --
    2.11.0
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