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authorPunit Agrawal <punitagrawal@gmail.com>2021-09-14 23:39:16 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-09-30 21:24:05 -0400
commit4402deae8993fb0e25a19bb999b38df13e25a7e0 (patch)
tree24ba087768c83e39d21f73107d5b0b10882063db
parent71bdc8fe22ace3554144911a49d5d973b7e8a49f (diff)
downloadlinux-4402deae8993fb0e25a19bb999b38df13e25a7e0.tar.bz2
kprobes: Make arch_check_ftrace_location static
arch_check_ftrace_location() was introduced as a weak function in commit f7f242ff004499 ("kprobes: introduce weak arch_check_ftrace_location() helper function") to allow architectures to handle kprobes call site on their own. Recently, the only architecture (csky) to implement arch_check_ftrace_location() was migrated to using the common version. As a result, further cleanup the code to drop the weak attribute and rename the function to remove the architecture specific implementation. Link: https://lkml.kernel.org/r/163163035673.489837.2367816318195254104.stgit@devnote2 Signed-off-by: Punit Agrawal <punitagrawal@gmail.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
-rw-r--r--include/linux/kprobes.h2
-rw-r--r--kernel/kprobes.c4
2 files changed, 2 insertions, 4 deletions
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index 0b75549b2815..8a9412bb0d5e 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -361,8 +361,6 @@ static inline int arch_prepare_kprobe_ftrace(struct kprobe *p)
}
#endif
-int arch_check_ftrace_location(struct kprobe *p);
-
/* Get the kprobe at this addr (if any) - called with preemption disabled */
struct kprobe *get_kprobe(void *addr);
diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index cfa9d3c263eb..30199bfcc74a 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -1524,7 +1524,7 @@ static inline int warn_kprobe_rereg(struct kprobe *p)
return ret;
}
-int __weak arch_check_ftrace_location(struct kprobe *p)
+static int check_ftrace_location(struct kprobe *p)
{
unsigned long ftrace_addr;
@@ -1547,7 +1547,7 @@ static int check_kprobe_address_safe(struct kprobe *p,
{
int ret;
- ret = arch_check_ftrace_location(p);
+ ret = check_ftrace_location(p);
if (ret)
return ret;
jump_label_lock();