arch/sh/kernel/signal_32.c:249:2: error: implicit declaration of function 'sys

Hi Al,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal.git master
head:   d38625a1fb0a7adcc79f97c37d3afde2981aa02a
commit: 9d5523cd164dd6ace6a8154a1c9d4f1c01fefdab [89/93] sh: sigaltstack conversion
config: sh-allnoconfig

All related error/warning messages:

arch/sh/kernel/signal_32.c: In function 'sys_rt_sigreturn':
arch/sh/kernel/signal_32.c:249:2: error: implicit declaration of function 'sys_sigaltstack' [-Werror=implicit-function-declaration]
cc1: all warnings being treated as errors

vim +249 arch/sh/kernel/signal_32.c
243
244 set_current_blocked(&set);
245
246 if (restore_sigcontext(regs, &frame->uc.uc_mcontext, &r0))
247 goto badframe;
248

250 goto badframe;
251
252 return r0;

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu, Yuanhan Liu Intel Corporation