[PATCH] udf: remove unused variables group_start and nr_groups

[PATCH] udf: remove unused variables group_start and nr_groups

[Colin King]

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

Variables group_start and nr_groups are being assigned but are never used
hence they are redundant and can be removed.

Cleans up clang warning:
variable 'group_start' set but not used [-Wunused-but-set-variable]
variable 'nr_groups' set but not used [-Wunused-but-set-variable]

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 fs/udf/balloc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index fcda0fc97b90..501bc5ffb4ce 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -175,8 +175,8 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
 {
 	struct udf_sb_info *sbi = UDF_SB(sb);
 	int alloc_count = 0;
-	int bit, block, block_group, group_start;
-	int nr_groups, bitmap_nr;
+	int bit, block, block_group;
+	int bitmap_nr;
 	struct buffer_head *bh;
 	__u32 part_len;
 
@@ -189,10 +189,8 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
 		block_count = part_len - first_block;
 
 	do {
-		nr_groups = udf_compute_nr_groups(sb, partition);
 		block = first_block + (sizeof(struct spaceBitmapDesc) << 3);
 		block_group = block >> (sb->s_blocksize_bits + 3);
-		group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
 
 		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
 		if (bitmap_nr < 0)
-- 
2.17.1

Re: [PATCH] udf: remove unused variables group_start and nr_groups

[Jan Kara]

On Wed 29-08-18 11:16:12, Colin King wrote:
> From: Colin Ian King <colin.king@canonical.com>
> 
> Variables group_start and nr_groups are being assigned but are never used
> hence they are redundant and can be removed.
> 
> Cleans up clang warning:
> variable 'group_start' set but not used [-Wunused-but-set-variable]
> variable 'nr_groups' set but not used [-Wunused-but-set-variable]
> 
> Signed-off-by: Colin Ian King <colin.king@canonical.com>

Thanks. Added to my tree.

								Honza

> ---
>  fs/udf/balloc.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
> index fcda0fc97b90..501bc5ffb4ce 100644
> --- a/fs/udf/balloc.c
> +++ b/fs/udf/balloc.c
> @@ -175,8 +175,8 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
>  {
>  	struct udf_sb_info *sbi = UDF_SB(sb);
>  	int alloc_count = 0;
> -	int bit, block, block_group, group_start;
> -	int nr_groups, bitmap_nr;
> +	int bit, block, block_group;
> +	int bitmap_nr;
>  	struct buffer_head *bh;
>  	__u32 part_len;
>  
> @@ -189,10 +189,8 @@ static int udf_bitmap_prealloc_blocks(struct super_block *sb,
>  		block_count = part_len - first_block;
>  
>  	do {
> -		nr_groups = udf_compute_nr_groups(sb, partition);
>  		block = first_block + (sizeof(struct spaceBitmapDesc) << 3);
>  		block_group = block >> (sb->s_blocksize_bits + 3);
> -		group_start = block_group ? 0 : sizeof(struct spaceBitmapDesc);
>  
>  		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);
>  		if (bitmap_nr < 0)
> -- 
> 2.17.1
> 
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR