From: Colin King <colin.king@canonical.com>
To: Alasdair Kergon <agk@redhat.com>,
Mike Snitzer <snitzer@redhat.com>,
dm-devel@redhat.com
Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH] dm-clone: make array descs static
Date: Wed, 15 Sep 2021 12:14:40 +0100 [thread overview]
Message-ID: <20210915111440.12011-1-colin.king@canonical.com> (raw)
From: Colin Ian King <colin.king@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@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
reply other threads:[~2021-09-15 11:14 UTC|newest]
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