linux-kernel - [PATCH 06/16] xtensa: signal: include headers for function prototypes

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Date:   Tue, 19 Sep 2023 22:21:29 -0700
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        Chris Zankel <chris@...kel.net>,
        Max Filippov <jcmvbkbc@...il.com>
Subject: [PATCH 06/16] xtensa: signal: include headers for function prototypes

Add <asm/syscall.h> to satisfy the xtensa_rt_sigreturn() prototype
warning.
Add <asm/processor.h> to satisfy the do_notify_resume() prototype
warning.

arch/xtensa/kernel/signal.c:246:17: warning: no previous prototype for 'xtensa_rt_sigreturn' [-Wmissing-prototypes]
arch/xtensa/kernel/signal.c:525:6: warning: no previous prototype for 'do_notify_resume' [-Wmissing-prototypes]
  525 | void do_notify_resume(struct pt_regs *regs)

Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Cc: Chris Zankel <chris@...kel.net>
Cc: Max Filippov <jcmvbkbc@...il.com>
---
 arch/xtensa/include/asm/processor.h |    1 +
 arch/xtensa/kernel/signal.c         |    2 ++
 2 files changed, 3 insertions(+)

diff -- a/arch/xtensa/kernel/signal.c b/arch/xtensa/kernel/signal.c
--- a/arch/xtensa/kernel/signal.c
+++ b/arch/xtensa/kernel/signal.c
@@ -26,6 +26,8 @@
 #include <linux/uaccess.h>
 #include <asm/cacheflush.h>
 #include <asm/coprocessor.h>
+#include <asm/processor.h>
+#include <asm/syscall.h>
 #include <asm/unistd.h>
 
 extern struct task_struct *coproc_owners[];
diff -- a/arch/xtensa/include/asm/processor.h b/arch/xtensa/include/asm/processor.h
--- a/arch/xtensa/include/asm/processor.h
+++ b/arch/xtensa/include/asm/processor.h
@@ -220,6 +220,7 @@ struct mm_struct;
 extern unsigned long __get_wchan(struct task_struct *p);
 
 void init_arch(bp_tag_t *bp_start);
+void do_notify_resume(struct pt_regs *regs);
 
 #define KSTK_EIP(tsk)		(task_pt_regs(tsk)->pc)
 #define KSTK_ESP(tsk)		(task_pt_regs(tsk)->areg[1])