ext3: replace all adds to little endians variables with le*_add_cpu

replace all:
	little_endian_variable = cpu_to_leX(leX_to_cpu(little_endian_variable) +
				expression_in_cpu_byteorder);
with:
	leX_add_cpu(&little_endian_variable, expression_in_cpu_byteorder);
sparse didn't generate any new warning with this patch

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Mark Fasheh <mark.fasheh@oracle.com>
Cc: David Chinner <dgc@sgi.com>
Cc: Timothy Shimmin <tes@sgi.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 8 deletions

diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index ebc05af7343a..9397d779c43d 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -518,8 +518,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
         EXT3_SB(sb)->s_gdb_count++;
         kfree(o_group_desc);
 
-        es->s_reserved_gdt_blocks =
-                cpu_to_le16(le16_to_cpu(es->s_reserved_gdt_blocks) - 1);
+        le16_add_cpu(&es->s_reserved_gdt_blocks, -1);
         ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
 
         return 0;
@@ -890,10 +889,8 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
          * blocks/inodes before the group is live won't actually let us
          * allocate the new space yet.
          */
-        es->s_blocks_count = cpu_to_le32(le32_to_cpu(es->s_blocks_count) +
-                input->blocks_count);
-        es->s_inodes_count = cpu_to_le32(le32_to_cpu(es->s_inodes_count) +
-                EXT3_INODES_PER_GROUP(sb));
+        le32_add_cpu(&es->s_blocks_count, input->blocks_count);
+        le32_add_cpu(&es->s_inodes_count, EXT3_INODES_PER_GROUP(sb));
 
         /*
          * We need to protect s_groups_count against other CPUs seeing
@@ -926,8 +923,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
 
         /* Update the reserved block counts only once the new group is
          * active. */
-        es->s_r_blocks_count = cpu_to_le32(le32_to_cpu(es->s_r_blocks_count) +
-                input->reserved_blocks);
+        le32_add_cpu(&es->s_r_blocks_count, input->reserved_blocks);
 
         /* Update the free space counts */
         percpu_counter_add(&sbi->s_freeblocks_counter,