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authorLi kunyu <kunyu@nfschina.com>2022-05-18 10:36:40 +0800
committerSteven Rostedt (Google) <rostedt@goodmis.org>2022-05-26 21:13:00 -0400
commit3a2bfec0b02f2226ff3376a5d2ff604d799bd7ea (patch)
tree426e43bc9232f9e582087ed9b7e9f644c5459030 /kernel
parent2decd16f47e3df3234b5486fe89a9aa5a1102af1 (diff)
ftrace: Remove return value of ftrace_arch_modify_*()
All instances of the function ftrace_arch_modify_prepare() and ftrace_arch_modify_post_process() return zero. There's no point in checking their return value. Just have them be void functions. Link: https://lkml.kernel.org/r/20220518023639.4065-1-kunyu@nfschina.com Signed-off-by: Li kunyu <kunyu@nfschina.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/trace/ftrace.c16
1 files changed, 4 insertions, 12 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 737e895e2aad..852c731cbd9a 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -2704,18 +2704,16 @@ ftrace_nop_initialize(struct module *mod, struct dyn_ftrace *rec)
* archs can override this function if they must do something
* before the modifying code is performed.
*/
-int __weak ftrace_arch_code_modify_prepare(void)
+void __weak ftrace_arch_code_modify_prepare(void)
{
- return 0;
}
/*
* archs can override this function if they must do something
* after the modifying code is performed.
*/
-int __weak ftrace_arch_code_modify_post_process(void)
+void __weak ftrace_arch_code_modify_post_process(void)
{
- return 0;
}
void ftrace_modify_all_code(int command)
@@ -2801,12 +2799,7 @@ void __weak arch_ftrace_update_code(int command)
static void ftrace_run_update_code(int command)
{
- int ret;
-
- ret = ftrace_arch_code_modify_prepare();
- FTRACE_WARN_ON(ret);
- if (ret)
- return;
+ ftrace_arch_code_modify_prepare();
/*
* By default we use stop_machine() to modify the code.
@@ -2816,8 +2809,7 @@ static void ftrace_run_update_code(int command)
*/
arch_ftrace_update_code(command);
- ret = ftrace_arch_code_modify_post_process();
- FTRACE_WARN_ON(ret);
+ ftrace_arch_code_modify_post_process();
}
static void ftrace_run_modify_code(struct ftrace_ops *ops, int command,