[PATCH] jump_label: explicitly annotate inittext labels as init

From: Alexander Gordeev
Date: Fri Dec 09 2022 - 01:08:28 EST


inittext code may be out of [__init_begin, __init_end]
range on some architectures. Yet, the jump_label_init()
only calls init_section_contains() function to check if
a label needs to be annotated as init and inittext code
is left behind.

Fixes: 19483677684b ("jump_label: Annotate entries that operate on __init code earlier")
Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
---
kernel/jump_label.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 714ac4c3b556..77680665d374 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -481,13 +481,16 @@ void __init jump_label_init(void)

for (iter = iter_start; iter < iter_stop; iter++) {
struct static_key *iterk;
+ unsigned long addr;
bool in_init;

/* rewrite NOPs */
if (jump_label_type(iter) == JUMP_LABEL_NOP)
arch_jump_label_transform_static(iter, JUMP_LABEL_NOP);

- in_init = init_section_contains((void *)jump_entry_code(iter), 1);
+ addr = jump_entry_code(iter);
+ in_init = init_section_contains((void *)addr, 1) ||
+ is_kernel_inittext(addr);
jump_entry_set_init(iter, in_init);

iterk = jump_entry_key(iter);
--
2.34.1