udf: 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
Signed-off-by: Jan Kara <jack@suse.cz>

1 files changed, 4 insertions, 9 deletions

diff --git a/fs/udf/balloc.c b/fs/udf/balloc.c
index f855dcbbdfb8..1b809bd494bd 100644
--- a/fs/udf/balloc.c
+++ b/fs/udf/balloc.c
@@ -149,8 +149,7 @@ static bool udf_add_free_space(struct udf_sb_info *sbi,
                 return false;
 
         lvid = (struct logicalVolIntegrityDesc *)sbi->s_lvid_bh->b_data;
-        lvid->freeSpaceTable[partition] = cpu_to_le32(le32_to_cpu(
-                                        lvid->freeSpaceTable[partition]) + cnt);
+        le32_add_cpu(&lvid->freeSpaceTable[partition], cnt);
         return true;
 }
 
@@ -589,10 +588,8 @@ static void udf_table_free_blocks(struct super_block *sb,
                                         sptr = oepos.bh->b_data + epos.offset;
                                         aed = (struct allocExtDesc *)
                                                 oepos.bh->b_data;
-                                        aed->lengthAllocDescs =
-                                                cpu_to_le32(le32_to_cpu(
-                                                        aed->lengthAllocDescs) +
-                                                                adsize);
+                                        le32_add_cpu(&aed->lengthAllocDescs,
+                                                        adsize);
                                 } else {
                                         sptr = iinfo->i_ext.i_data +
                                                                 epos.offset;
@@ -645,9 +642,7 @@ static void udf_table_free_blocks(struct super_block *sb,
                                 mark_inode_dirty(table);
                         } else {
                                 aed = (struct allocExtDesc *)epos.bh->b_data;
-                                aed->lengthAllocDescs =
-                                        cpu_to_le32(le32_to_cpu(
-                                            aed->lengthAllocDescs) + adsize);
+                                le32_add_cpu(&aed->lengthAllocDescs, adsize);
                                 udf_update_tag(epos.bh->b_data, epos.offset);
                                 mark_buffer_dirty(epos.bh);
                         }