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, 12 deletions

diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index dc2f946dfca9..91d1f1d3d7a5 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -1748,9 +1748,7 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
 
                         if (epos->bh) {
                                 aed = (struct allocExtDesc *)epos->bh->b_data;
-                                aed->lengthAllocDescs =
-                                        cpu_to_le32(le32_to_cpu(
-                                        aed->lengthAllocDescs) + adsize);
+                                le32_add_cpu(&aed->lengthAllocDescs, adsize);
                         } else {
                                 iinfo->i_lenAlloc += adsize;
                                 mark_inode_dirty(inode);
@@ -1800,9 +1798,7 @@ int8_t udf_add_aext(struct inode *inode, struct extent_position *epos,
                 mark_inode_dirty(inode);
         } 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);
                 if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
                                 UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
                         udf_update_tag(epos->bh->b_data,
@@ -2016,9 +2012,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
                         mark_inode_dirty(inode);
                 } else {
                         aed = (struct allocExtDesc *)oepos.bh->b_data;
-                        aed->lengthAllocDescs =
-                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
-                                            (2 * adsize));
+                        le32_add_cpu(&aed->lengthAllocDescs, -(2 * adsize));
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
                             UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
                                 udf_update_tag(oepos.bh->b_data,
@@ -2035,9 +2029,7 @@ int8_t udf_delete_aext(struct inode *inode, struct extent_position epos,
                         mark_inode_dirty(inode);
                 } else {
                         aed = (struct allocExtDesc *)oepos.bh->b_data;
-                        aed->lengthAllocDescs =
-                                cpu_to_le32(le32_to_cpu(aed->lengthAllocDescs) -
-                                            adsize);
+                        le32_add_cpu(&aed->lengthAllocDescs, -adsize);
                         if (!UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_STRICT) ||
                             UDF_SB(inode->i_sb)->s_udfrev >= 0x0201)
                                 udf_update_tag(oepos.bh->b_data,