compat: Declare compat_sys_sigpending and compat_sys_sigprocmask prototypes
__ARCH_WANT_SYS_SIGPENDING or __ARCH_WANT_SYS_SIGPROGMASK may be defined for compat support but the corresponding prototypes are missing from linux/compat.h. Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com> Acked-by: NAndrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de>
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