udf: convert byte order of constant instead of variable

convert byte order of constant instead of variable,
which can be done at compile time (vs run time)

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Acked-by: Jan Kara <jack@suse.cz>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/fs/udf/misc.c b/fs/udf/misc.c
index 585e4eaed254..a3a513faddb0 100644
--- a/fs/udf/misc.c
+++ b/fs/udf/misc.c
@@ -74,8 +74,8 @@ struct genericFormat *udf_add_extendedattr(struct inode *inode, uint32_t size,
 
                 if (UDF_I_LENEATTR(inode)) {
                         /* check checksum/crc */
-                        if (le16_to_cpu(eahd->descTag.tagIdent) !=
-                                        TAG_IDENT_EAHD ||
+                        if (eahd->descTag.tagIdent !=
+                                        cpu_to_le16(TAG_IDENT_EAHD) ||
                             le32_to_cpu(eahd->descTag.tagLocation) !=
                                         UDF_I_LOCATION(inode).logicalBlockNum)
                                 return NULL;
@@ -161,8 +161,8 @@ struct genericFormat *udf_get_extendedattr(struct inode *inode, uint32_t type,
                 eahd = (struct extendedAttrHeaderDesc *)ea;
 
                 /* check checksum/crc */
-                if (le16_to_cpu(eahd->descTag.tagIdent) !=
-                                TAG_IDENT_EAHD ||
+                if (eahd->descTag.tagIdent !=
+                                cpu_to_le16(TAG_IDENT_EAHD) ||
                     le32_to_cpu(eahd->descTag.tagLocation) !=
                                 UDF_I_LOCATION(inode).logicalBlockNum)
                         return NULL;
@@ -233,8 +233,8 @@ struct buffer_head *udf_read_tagged(struct super_block *sb, uint32_t block,
         }
 
         /* Verify the tag version */
-        if (le16_to_cpu(tag_p->descVersion) != 0x0002U &&
-            le16_to_cpu(tag_p->descVersion) != 0x0003U) {
+        if (tag_p->descVersion != cpu_to_le16(0x0002U) &&
+            tag_p->descVersion != cpu_to_le16(0x0003U)) {
                 udf_debug("tag version 0x%04x != 0x0002 || 0x0003 block %d\n",
                           le16_to_cpu(tag_p->descVersion), block);
                 goto error_out;