diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/jump_label.c | 8 | ||||
| -rw-r--r-- | kernel/static_call.c | 11 |
2 files changed, 18 insertions, 1 deletions
diff --git a/kernel/jump_label.c b/kernel/jump_label.c index c6a39d662935..ba39fbb1f8e7 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -407,6 +407,14 @@ static bool jump_label_can_update(struct jump_entry *entry, bool init) return false; if (!kernel_text_address(jump_entry_code(entry))) { + /* + * This skips patching built-in __exit, which + * is part of init_section_contains() but is + * not part of kernel_text_address(). + * + * Skipping built-in __exit is fine since it + * will never be executed. + */ WARN_ONCE(!jump_entry_is_init(entry), "can't patch jump_label at %pS", (void *)jump_entry_code(entry)); diff --git a/kernel/static_call.c b/kernel/static_call.c index fc2259047be2..2c5950b0b90e 100644 --- a/kernel/static_call.c +++ b/kernel/static_call.c @@ -181,7 +181,16 @@ void __static_call_update(struct static_call_key *key, void *tramp, void *func) continue; if (!kernel_text_address((unsigned long)site_addr)) { - WARN_ONCE(1, "can't patch static call site at %pS", + /* + * This skips patching built-in __exit, which + * is part of init_section_contains() but is + * not part of kernel_text_address(). + * + * Skipping built-in __exit is fine since it + * will never be executed. + */ + WARN_ONCE(!static_call_is_init(site), + "can't patch static call site at %pS", site_addr); continue; } |