evm: Use defined constant for UUID representation

Instead of sizeof use pre-defined constant for UUID representation. While here, drop the implementation details of uuid_t type. Signed-off-by: Andy Shevchenko <[email protected]> Signed-off-by: Mimi Zohar <[email protected]>
sourajitk · Feb 4, 2019 · e7fde07 · e7fde07
1 parent fdb2410
commit e7fde07
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/security/integrity/evm/evm_crypto.c b/security/integrity/evm/evm_crypto.c
@@ -173,8 +173,7 @@ static void hmac_add_misc(struct shash_desc *desc, struct inode *inode,
 	crypto_shash_update(desc, (const u8 *)&hmac_misc, sizeof(hmac_misc));
 	if ((evm_hmac_attrs & EVM_ATTR_FSUUID) &&
 	    type != EVM_XATTR_PORTABLE_DIGSIG)
-		crypto_shash_update(desc, &inode->i_sb->s_uuid.b[0],
-				    sizeof(inode->i_sb->s_uuid));
+		crypto_shash_update(desc, (u8 *)&inode->i_sb->s_uuid, UUID_SIZE);
 	crypto_shash_final(desc, digest);
 }