[for-linus][PATCH 05/27] kprobes: Make arch_check_ftrace_location static

[Steven Rostedt <rostedt@goodmis.org>]

From: Punit Agrawal <punitagrawal@gmail.com>

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>
---
 include/linux/kprobes.h | 2 --
 kernel/kprobes.c        | 4 ++--
 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();
-- 
2.32.0