f2fs: use macro instead of f2fs verity version

Because fsverity_descriptor_location.version is constant,
so use macro for better reading.

Signed-off-by: Jack Qiu <jack.qiu@huawei.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

diff --git a/fs/f2fs/verity.c b/fs/f2fs/verity.c
index 865c9fb774fbeb5209824bd68fb46d1544dfb703..9eb0dba851e8858ae6138ab7ce16cd898b416c3e 100644 (file)
--- a/fs/f2fs/verity.c
+++ b/fs/f2fs/verity.c
@@ -29,6 +29,8 @@
 #include "f2fs.h"
 #include "xattr.h"
 
+#define F2FS_VERIFY_VER        (1)
+
 static inline loff_t f2fs_verity_metadata_pos(const struct inode *inode)
 {
        return round_up(inode->i_size, 65536);
@@ -152,7 +154,7 @@ static int f2fs_end_enable_verity(struct file *filp, const void *desc,
        struct inode *inode = file_inode(filp);
        u64 desc_pos = f2fs_verity_metadata_pos(inode) + merkle_tree_size;
        struct fsverity_descriptor_location dloc = {
-               .version = cpu_to_le32(1),
+               .version = cpu_to_le32(F2FS_VERIFY_VER),
                .size = cpu_to_le32(desc_size),
                .pos = cpu_to_le64(desc_pos),
        };
@@ -199,7 +201,7 @@ static int f2fs_get_verity_descriptor(struct inode *inode, void *buf,
                            F2FS_XATTR_NAME_VERITY, &dloc, sizeof(dloc), NULL);
        if (res < 0 && res != -ERANGE)
                return res;
-       if (res != sizeof(dloc) || dloc.version != cpu_to_le32(1)) {
+       if (res != sizeof(dloc) || dloc.version != cpu_to_le32(F2FS_VERIFY_VER)) {
                f2fs_warn(F2FS_I_SB(inode), "unknown verity xattr format");
                return -EINVAL;
        }