summaryrefslogtreecommitdiff
path: root/kernel/extable.c
diff options
context:
space:
mode:
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2013-09-11 14:23:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:58:25 -0700
commite656a634118285142063527b2cd40c749036de82 (patch)
tree201f158e1fb06cd7ac851b6f1b0530f232146c35 /kernel/extable.c
parentbff2dc42bcafdd75c0296987747f782965d691a0 (diff)
downloadlinux-sh-e656a634118285142063527b2cd40c749036de82.tar.gz
extable: skip sorting if the table is empty
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-koenig@pengutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: David Daney <david.daney@cavium.com> Cc: "H. Peter Anvin" <hpa@linux.intel.com> Cc: Borislav Petkov <bp@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/extable.c')
-rw-r--r--kernel/extable.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/extable.c b/kernel/extable.c
index 67460b93b1a1..832cb28105bb 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);
}