xtensa: ptrace: add prototypes to <asm/ptrace.h>

rddunlap · jcmvbkbc · commit 8cf543c0a074 · 2023-09-20T05:03:19.000-07:00
Add prototype for do_syscall_trace_enter() to asm/ptrace.h.
Move prototype for do_syscall_trace_leave() there to be consistent.

Fixes a build warning:

arch/xtensa/kernel/ptrace.c:545:5: warning: no previous prototype for 'do_syscall_trace_enter' [-Wmissing-prototypes]
  545 | int do_syscall_trace_enter(struct pt_regs *regs)

Signed-off-by: Randy Dunlap &lt;rdunlap@infradead.org&gt;
Cc: Chris Zankel &lt;chris@zankel.net&gt;
Cc: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
Message-Id: &lt;20230920052139.10570-5-rdunlap@infradead.org&gt;
Signed-off-by: Max Filippov &lt;jcmvbkbc@gmail.com&gt;
diff --git a/arch/xtensa/include/asm/ptrace.h b/arch/xtensa/include/asm/ptrace.h
@@ -106,6 +106,9 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)
 	return regs->areg[2];
 }
 
+int do_syscall_trace_enter(struct pt_regs *regs);
+void do_syscall_trace_leave(struct pt_regs *regs);
+
 #else	/* __ASSEMBLY__ */
 
 # include <asm/asm-offsets.h>
diff --git a/arch/xtensa/kernel/ptrace.c b/arch/xtensa/kernel/ptrace.c
@@ -541,7 +541,6 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
-void do_syscall_trace_leave(struct pt_regs *regs);
 int do_syscall_trace_enter(struct pt_regs *regs)
 {
 	if (regs->syscall == NO_SYSCALL)

Original file line number	Diff line number	Diff line change
`@@ -106,6 +106,9 @@ static inline unsigned long regs_return_value(struct pt_regs *regs)`
`106`	`106`	`return regs->areg[2];`
`107`	`107`	`}`
`108`	`108`
	`109`	`+int do_syscall_trace_enter(struct pt_regs *regs);`
	`110`	`+void do_syscall_trace_leave(struct pt_regs *regs);`
	`111`	`+`
`109`	`112`	`#else /* __ASSEMBLY__ */`
`110`	`113`
`111`	`114`	`# include <asm/asm-offsets.h>`
Original file line number	Diff line number	Diff line change
`@@ -541,7 +541,6 @@ long arch_ptrace(struct task_struct *child, long request,`
`541`	`541`	`return ret;`
`542`	`542`	`}`
`543`	`543`
`544`		`-void do_syscall_trace_leave(struct pt_regs *regs);`
`545`	`544`	`int do_syscall_trace_enter(struct pt_regs *regs)`
`546`	`545`	`{`
`547`	`546`	`if (regs->syscall == NO_SYSCALL)`