The quilt patch titled Subject: hexagon: signal: switch to SYSCALL_DEFINE0 for sys_rt_sigreturn() has been removed from the -mm tree. Its filename was hexagon-signal-switch-to-syscall_define0-for-sys_rt_sigreturn.patch This patch was dropped because it was merged into the mm-nonmm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: Nathan Chancellor <nathan@xxxxxxxxxx> Subject: hexagon: signal: switch to SYSCALL_DEFINE0 for sys_rt_sigreturn() Date: Thu, 30 Nov 2023 15:58:24 -0700 Clang warns: arch/hexagon/kernel/signal.c:223:16: warning: no previous prototype for function 'sys_rt_sigreturn' [-Wmissing-prototypes] 223 | asmlinkage int sys_rt_sigreturn(void) | ^ arch/hexagon/kernel/signal.c:223:12: note: declare 'static' if the function is not intended to be used outside of this translation unit 223 | asmlinkage int sys_rt_sigreturn(void) | ^ | static 1 warning generated. Switch to the SYSCALL_DEFINE0() macro, which automatically declares a prototype. Link: https://lkml.kernel.org/r/20231130-hexagon-missing-prototypes-v1-11-5c34714afe9e@xxxxxxxxxx Signed-off-by: Nathan Chancellor <nathan@xxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Brian Cain <bcain@xxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- arch/hexagon/kernel/signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/arch/hexagon/kernel/signal.c~hexagon-signal-switch-to-syscall_define0-for-sys_rt_sigreturn +++ a/arch/hexagon/kernel/signal.c @@ -220,7 +220,7 @@ no_restart: * Architecture-specific wrappers for signal-related system calls */ -asmlinkage int sys_rt_sigreturn(void) +SYSCALL_DEFINE0(rt_sigreturn) { struct pt_regs *regs = current_pt_regs(); struct rt_sigframe __user *frame; _ Patches currently in -mm which might be from nathan@xxxxxxxxxx are buffer-fix-grow_buffers-for-block-size-page_size-fix.patch