diff mbox series

[next] ocfs2: remove redundant assignment to variable bit_off

Message ID 20230622102736.2831126-1-colin.i.king@gmail.com
State New
Headers
Series [next] ocfs2: remove redundant assignment to variable bit_off |

Commit Message

Colin Ian King June 22, 2023, 10:27 a.m. UTC 
  Variable bit_off is being assigned a value that is never read, it is
being re-assigned a new value in the following while loop. Remove the
assignment. Cleans up clang scan build warning:

fs/ocfs2/localalloc.c:976:18: warning: Although the value stored to
'bit_off' is used in the enclosing expression, the value is never
actually read from 'bit_off' [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
 fs/ocfs2/localalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Joseph Qi June 23, 2023, 8:03 a.m. UTC | #1 
On 6/22/23 6:27 PM, Colin Ian King wrote:
> Variable bit_off is being assigned a value that is never read, it is
> being re-assigned a new value in the following while loop. Remove the
> assignment. Cleans up clang scan build warning:
> 
> fs/ocfs2/localalloc.c:976:18: warning: Although the value stored to
> 'bit_off' is used in the enclosing expression, the value is never
> actually read from 'bit_off' [deadcode.DeadStores]
> 
> Signed-off-by: Colin Ian King <colin.i.king@gmail.com>

Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
> ---
>  fs/ocfs2/localalloc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
> index c4426d12a2ad..c803c10dd97e 100644
> --- a/fs/ocfs2/localalloc.c
> +++ b/fs/ocfs2/localalloc.c
> @@ -973,7 +973,7 @@ static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
>  	la_start_blk = ocfs2_clusters_to_blocks(osb->sb,
>  						le32_to_cpu(la->la_bm_off));
>  	bitmap = la->la_bitmap;
> -	start = count = bit_off = 0;
> +	start = count = 0;
>  	left = le32_to_cpu(alloc->id1.bitmap1.i_total);
>  
>  	while ((bit_off = ocfs2_find_next_zero_bit(bitmap, left, start))
diff mbox series

Patch

diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c
index c4426d12a2ad..c803c10dd97e 100644
--- a/fs/ocfs2/localalloc.c
+++ b/fs/ocfs2/localalloc.c
@@ -973,7 +973,7 @@  static int ocfs2_sync_local_to_main(struct ocfs2_super *osb,
 	la_start_blk = ocfs2_clusters_to_blocks(osb->sb,
 						le32_to_cpu(la->la_bm_off));
 	bitmap = la->la_bitmap;
-	start = count = bit_off = 0;
+	start = count = 0;
 	left = le32_to_cpu(alloc->id1.bitmap1.i_total);
 
 	while ((bit_off = ocfs2_find_next_zero_bit(bitmap, left, start))