At least on ARM no-MMU the extable is empty and so there is nothing to
sort. So add a check for the table to be empty which effectively only
changes that the misleading pr_notice is suppressed.
Signed-off-by: Uwe Kleine-König <u.kleine-koe...@pengutronix.de>
---
Hello,
I first tried to select BUILDTIME_EXTABLE_SORT for ARM no-MMU, too, but that
failed to build with
no __ex_table in file: vmlinux
. I didn't dig deeper for the reasons, but maybe this is worth fixing, too?
Best regards
Uwe
kernel/extable.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/extable.c b/kernel/extable.c
index 67460b9..832cb28 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -41,7 +41,7 @@ u32 __initdata main_extable_sort_needed = 1;
/* Sort the kernel's built-in exception table */
void __init sort_main_extable(void)
{
- if (main_extable_sort_needed) {
+ if (main_extable_sort_needed && __stop___ex_table > __start___ex_table)
{
pr_notice("Sorting __ex_table...\n");
sort_extable(__start___ex_table, __stop___ex_table);
}
--
1.8.3.2
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