dm vdo indexer: prevent unterminated string warning

Commit Message

Matthew Sakai Jan. 29, 2025, 11:27 p.m. UTC

From: Chung Chung <[e-mail]>

Fix array initialization that triggers a warning:

error: initializer-string for array of ‘unsigned char’ is too long
 [-Werror=unterminated-string-initialization]

Signed-off-by: Chung Chung <[e-mail]>
Signed-off-by: Matthew Sakai <[e-mail]>
---
 drivers/md/dm-vdo/indexer/index-layout.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Patch

diff --git a/drivers/md/dm-vdo/indexer/index-layout.c b/drivers/md/dm-vdo/indexer/index-layout.c
index 627adc24af3b..053b7845d1f3 100644
--- a/drivers/md/dm-vdo/indexer/index-layout.c
+++ b/drivers/md/dm-vdo/indexer/index-layout.c
@@ -54,7 +54,6 @@ 
  * Each save also has a unique nonce.
  */
 
-#define MAGIC_SIZE 32
 #define NONCE_INFO_SIZE 32
 #define MAX_SAVES 2
 
@@ -98,9 +97,11 @@  enum region_type {
 #define SUPER_VERSION_CURRENT 3
 #define SUPER_VERSION_MAXIMUM 7
 
-static const u8 LAYOUT_MAGIC[MAGIC_SIZE] = "*ALBIREO*SINGLE*FILE*LAYOUT*001*";
+static const u8 LAYOUT_MAGIC[] = "*ALBIREO*SINGLE*FILE*LAYOUT*001*";
 static const u64 REGION_MAGIC = 0x416c6252676e3031; /* 'AlbRgn01' */
 
+#define MAGIC_SIZE (sizeof(LAYOUT_MAGIC) - 1)
+
 struct region_header {
 	u64 magic;
 	u64 region_blocks;