um: Fix -Wmissing-prototypes warnings for (rt_)sigreturn
authorTiwei Bie <tiwei.btw@antgroup.com>
Tue, 23 Apr 2024 12:58:52 +0000 (20:58 +0800)
committerRichard Weinberger <richard@nod.at>
Tue, 30 Apr 2024 12:13:38 +0000 (14:13 +0200)
commit323ced9669a8f70a9ae707cfe46f852ca23ed23e
tree0c3e9fbaea004c42c381794d620a32fffe58fa3c
parentf95bab86106ee5b180b197a68246282b56ef5d8a
um: Fix -Wmissing-prototypes warnings for (rt_)sigreturn

Use SYSCALL_DEFINE0 to define (rt_)sigreturn. This will address
below -Wmissing-prototypes warnings:

arch/x86/um/signal.c:453:6: warning: no previous prototype for ‘sys_sigreturn’ [-Wmissing-prototypes]
arch/x86/um/signal.c:560:6: warning: no previous prototype for ‘sys_rt_sigreturn’ [-Wmissing-prototypes]

Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
arch/x86/um/signal.c