[dm-devel] [PATCH] dm-clone: make array descs static

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

Don't populate the read-only array descs on the stack but instead it
static and add extra const. Also makes the object code smaller by 66
bytes:

Before:
   text    data     bss     dec     hex filename
  42382   11140     512   54034    d312 ./drivers/md/dm-clone-target.o

After:
   text    data     bss     dec     hex filename
  42220   11236     512   53968    d2d0 ./drivers/md/dm-clone-target.o

(gcc version 11.2.0)

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 drivers/md/dm-clone-target.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-clone-target.c b/drivers/md/dm-clone-target.c
index 84dbe08ad205..29f74b2a5cd2 100644
--- a/drivers/md/dm-clone-target.c
+++ b/drivers/md/dm-clone-target.c
@@ -161,7 +161,7 @@ static const char *clone_device_name(struct clone *clone)
 
 static void __set_clone_mode(struct clone *clone, enum clone_metadata_mode new_mode)
 {
-	const char *descs[] = {
+	static const char * const descs[] = {
 		"read-write",
 		"read-only",
 		"fail"
-- 
2.32.0