diff options
| author | Masami Hiramatsu | 2021-09-14 23:40:36 +0900 |
|---|---|---|
| committer | Steven Rostedt (VMware) | 2021-09-30 21:24:06 -0400 |
| commit | f2ec8d9a3b8c0f22cd6a2b4f5a2d9aee5206e3b7 (patch) | |
| tree | 062bc0312dc8c349e621742940d6a4345b747aa2 /arch/ia64 | |
| parent | a7fe2378454cf46cd5e2776d05e72bbe8f0a468c (diff) | |
kprobes: treewide: Replace arch_deref_entry_point() with dereference_symbol_descriptor()
~15 years ago kprobes grew the 'arch_deref_entry_point()' __weak function:
3d7e33825d87: ("jprobes: make jprobes a little safer for users")
But this is just open-coded dereference_symbol_descriptor() in essence, and
its obscure nature was causing bugs.
Just use the real thing and remove arch_deref_entry_point().
Link: https://lkml.kernel.org/r/163163043630.489837.7924988885652708696.stgit@devnote2
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/ia64')
| -rw-r--r-- | arch/ia64/kernel/kprobes.c | 5 |
1 files changed, 0 insertions, 5 deletions
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c index d4048518a1d7..0f8573bbf520 100644 --- a/arch/ia64/kernel/kprobes.c +++ b/arch/ia64/kernel/kprobes.c @@ -891,11 +891,6 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, return ret; } -unsigned long arch_deref_entry_point(void *entry) -{ - return ((struct fnptr *)entry)->ip; -} - static struct kprobe trampoline_p = { .pre_handler = trampoline_probe_handler }; |