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| author |   Tiezhu Yang <yangtiezhu@loongson.cn> | 2022-06-08 09:23:22 +0800 |
|---|---|---|
| committer |   Steven Rostedt (Google) <rostedt@goodmis.org> | 2022-07-12 16:36:45 -0400 |
| commit | 1e1fb420fe68d9d938db360fec700dfd230cc22a (patch) | |
| tree | b61ebc847dc9301e37dab8c64bfd03a2d8d490de | |
| parent | fprobe/samples: Make sample_probe static (diff) | |
| download | linux-dev-1e1fb420fe68d9d938db360fec700dfd230cc22a.tar.xz linux-dev-1e1fb420fe68d9d938db360fec700dfd230cc22a.zip | |
samples: Use KSYM_NAME_LEN for kprobes
It is better and enough to use KSYM_NAME_LEN for kprobes
in samples, no need to define and use the other values.
Link: https://lkml.kernel.org/r/1654651402-21552-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
| -rw-r--r-- | samples/kprobes/kprobe_example.c | 5 | ||||
| -rw-r--r-- | samples/kprobes/kretprobe_example.c | 5 |
2 files changed, 4 insertions, 6 deletions
diff --git a/samples/kprobes/kprobe_example.c b/samples/kprobes/kprobe_example.c index f991a66b5b02..fd346f58ddba 100644 --- a/samples/kprobes/kprobe_example.c +++ b/samples/kprobes/kprobe_example.c @@ -16,9 +16,8 @@ #include <linux/module.h> #include <linux/kprobes.h> -#define MAX_SYMBOL_LEN 64 -static char symbol[MAX_SYMBOL_LEN] = "kernel_clone"; -module_param_string(symbol, symbol, sizeof(symbol), 0644); +static char symbol[KSYM_NAME_LEN] = "kernel_clone"; +module_param_string(symbol, symbol, KSYM_NAME_LEN, 0644); /* For each probe you need to allocate a kprobe structure */ static struct kprobe kp = { diff --git a/samples/kprobes/kretprobe_example.c b/samples/kprobes/kretprobe_example.c index 228321ecb161..cbf16542d84e 100644 --- a/samples/kprobes/kretprobe_example.c +++ b/samples/kprobes/kretprobe_example.c @@ -23,11 +23,10 @@ #include <linux/module.h> #include <linux/kprobes.h> #include <linux/ktime.h> -#include <linux/limits.h> #include <linux/sched.h> -static char func_name[NAME_MAX] = "kernel_clone"; -module_param_string(func, func_name, NAME_MAX, S_IRUGO); +static char func_name[KSYM_NAME_LEN] = "kernel_clone"; +module_param_string(func, func_name, KSYM_NAME_LEN, 0644); MODULE_PARM_DESC(func, "Function to kretprobe; this module will report the" " function's execution time"); |