dm: favour __packed versus "__attribute__ ((packed))"

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

drivers/md/persistent-data/dm-btree-internal.h

@@ -35,12 +35,12 @@ struct node_header {
 	__le32 max_entries;
 	__le32 value_size;
 	__le32 padding;
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 struct btree_node {
 	struct node_header header;
 	__le64 keys[];
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 
 /*

drivers/md/persistent-data/dm-space-map-common.h

@@ -34,7 +34,7 @@ struct disk_index_entry {
 	__le64 blocknr;
 	__le32 nr_free;
 	__le32 none_free_before;
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 
 #define MAX_METADATA_BITMAPS 255
@@ -44,7 +44,7 @@ struct disk_metadata_index {
 	__le64 blocknr;
 
 	struct disk_index_entry index[MAX_METADATA_BITMAPS];
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 struct ll_disk;
 
@@ -103,7 +103,7 @@ struct disk_sm_root {
 	__le64 nr_allocated;
 	__le64 bitmap_root;
 	__le64 ref_count_root;
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 #define ENTRIES_PER_BYTE 4
 
@@ -111,7 +111,7 @@ struct disk_bitmap_header {
 	__le32 csum;
 	__le32 not_used;
 	__le64 blocknr;
-} __attribute__ ((packed)) __aligned(8);
+} __packed __aligned(8);
 
 /*----------------------------------------------------------------*/