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dm clone: make array 'descs' static

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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>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
This commit is contained in:
Colin Ian King 2021-09-15 12:14:40 +01:00 committed by Mike Snitzer
parent 2c0468e054
commit ec132ef2d1
1 changed files with 1 additions and 1 deletions
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2
drivers/md/dm-clone-target.c
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@ -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"