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authorJérémy Lefaure <jeremy.lefaure@lse.epita.fr>2017-10-01 22:30:46 +0300
committerTyler Hicks <tyhicks@canonical.com>2017-11-06 21:23:59 +0300
commit02f9876ebb5e9cd31013c62b8839508b2dc152f0 (patch)
treedaba01fc309974a4da5457b2b5d382861a3a9594 /fs/ecryptfs/crypto.c
parent5032f360dd31e6cf59aadad0478df1244bfd30f8 (diff)
downloadlinux-02f9876ebb5e9cd31013c62b8839508b2dc152f0.tar.xz
ecryptfs: use ARRAY_SIZE
Using the ARRAY_SIZE macro improves the readability of the code. Found with Coccinelle with the following semantic patch: @r depends on (org || report)@ type T; T[] E; position p; @@ ( (sizeof(E)@p /sizeof(*E)) | (sizeof(E)@p /sizeof(E[...])) | (sizeof(E)@p /sizeof(T)) ) Signed-off-by: Jérémy Lefaure <jeremy.lefaure@lse.epita.fr> Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Diffstat (limited to 'fs/ecryptfs/crypto.c')
-rw-r--r--fs/ecryptfs/crypto.c7
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 1cd0902bc936..846ca150d52e 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -36,6 +36,7 @@
#include <linux/scatterlist.h>
#include <linux/slab.h>
#include <asm/unaligned.h>
+#include <linux/kernel.h>
#include "ecryptfs_kernel.h"
#define DECRYPT 0
@@ -884,8 +885,7 @@ static int ecryptfs_process_flags(struct ecryptfs_crypt_stat *crypt_stat,
u32 flags;
flags = get_unaligned_be32(page_virt);
- for (i = 0; i < ((sizeof(ecryptfs_flag_map)
- / sizeof(struct ecryptfs_flag_map_elem))); i++)
+ for (i = 0; i < ARRAY_SIZE(ecryptfs_flag_map); i++)
if (flags & ecryptfs_flag_map[i].file_flag) {
crypt_stat->flags |= ecryptfs_flag_map[i].local_flag;
} else
@@ -922,8 +922,7 @@ void ecryptfs_write_crypt_stat_flags(char *page_virt,
u32 flags = 0;
int i;
- for (i = 0; i < ((sizeof(ecryptfs_flag_map)
- / sizeof(struct ecryptfs_flag_map_elem))); i++)
+ for (i = 0; i < ARRAY_SIZE(ecryptfs_flag_map); i++)
if (crypt_stat->flags & ecryptfs_flag_map[i].local_flag)
flags |= ecryptfs_flag_map[i].file_flag;
/* Version is in top 8 bits of the 32-bit flag vector */