static_call: Fix static_call_update() sanity check

[sfrench/cifs-2.6.git] / kernel / jump_label.c

diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index c6a39d662935e494decf97a6f09b3f5ebda4975b..ba39fbb1f8e7382c4b0bd7ffd785618574a8e270 100644 (file)
--- 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));