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    Subject[PATCH] ARM: quiet sparse noise due to __ARCH_WANT_SYS_RT_SIG(ACTION|SUSPEND)
    Date
    ARM defines __ARCH_WANT_SYS_RT_SIG(ACTION|SUSPEND) which
    produces the following sparse warnings in kernel/signal.c:

    warning: symbol 'sys_rt_sigaction' was not declared. Should it be static?
    warning: symbol 'sys_rt_sigsuspend' was not declared. Should it be static?

    Since ARM doesn't include <asm-generic/syscalls.h>, due to different
    calling conventions for some system calls, prototype the functions
    in <asm/unistd.h> to quiet the noise.

    Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
    Cc: Russell King <linux@arm.linux.org.uk>
    Cc: Mikael Pettersson <mikpe@it.uu.se>
    Cc: "Eric W. Biederman" <ebiederm@xmission.com>
    Cc: Mike Frysinger <vapier@gentoo.org>
    Cc: Tony Luck <tony.luck@intel.com>

    ---

    diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h
    index 2c04ed5..322c54e 100644
    --- a/arch/arm/include/asm/unistd.h
    +++ b/arch/arm/include/asm/unistd.h
    @@ -467,6 +467,20 @@
    #define __ARCH_WANT_SYS_SOCKETCALL
    #endif

    +#ifndef __ASSEMBLY__
    +
    +#include <linux/types.h>
    +#include <linux/linkage.h>
    +#include <linux/compiler.h>
    +#include <linux/signal.h>
    +
    +asmlinkage long sys_rt_sigaction(int sig, const struct sigaction __user *act,
    + struct sigaction __user *oact,
    + size_t sigsetsize);
    +asmlinkage long sys_rt_sigsuspend(sigset_t __user *unewset, size_t sigsetsize);
    +
    +#endif /* !__ASSEMBLY__ */
    +
    /*
    * "Conditional" syscalls
    *

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