tree:   https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git keys-acl
head:   9f9385fc35f5528b197970130e39e23ba82b3689
commit: addfb78802c0a5353c5f81a2bf10985302bc186e [1/2] keys: Replace uid/gid/perm permissions checking with an ACL
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-rc1-42-g38eda53-dirty
        git checkout addfb78802c0a5353c5f81a2bf10985302bc186e
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> fs/crypto/keyring.c:207:65: sparse: sparse: incorrect type in argument 5 (different base types) @@    expected struct key_acl *acl @@    got l *acl @@
>> fs/crypto/keyring.c:207:65: sparse:    expected struct key_acl *acl
>> fs/crypto/keyring.c:207:65: sparse:    got int
   fs/crypto/keyring.c:251:65: sparse: sparse: incorrect type in argument 5 (different base types) @@    expected struct key_acl *acl @@    got l *acl @@
   fs/crypto/keyring.c:251:65: sparse:    expected struct key_acl *acl
   fs/crypto/keyring.c:251:65: sparse:    got int
   fs/crypto/keyring.c:288:44: sparse: sparse: incorrect type in argument 6 (different base types) @@    expected struct key_acl *acl @@    got l *acl @@
   fs/crypto/keyring.c:288:44: sparse:    expected struct key_acl *acl
   fs/crypto/keyring.c:288:44: sparse:    got int
   fs/crypto/keyring.c:360:57: sparse: sparse: incorrect type in argument 6 (different base types) @@    expected struct key_acl *acl @@    got l *acl @@
   fs/crypto/keyring.c:360:57: sparse:    expected struct key_acl *acl
   fs/crypto/keyring.c:360:57: sparse:    got int
--
>> fs/crypto/keysetup_v1.c:107:26: sparse: sparse: not enough arguments for function request_key
   fs/crypto/keysetup_v1.c:166:17: sparse: sparse: context imbalance in 'fscrypt_put_direct_key' - unexpected unlock
--
>> fs/verity/signature.c:142:48: sparse: sparse: incorrect type in argument 5 (different base types) @@    expected struct key_acl *acl @@    got l *acl @@
>> fs/verity/signature.c:142:48: sparse:    expected struct key_acl *acl
>> fs/verity/signature.c:142:48: sparse:    got int
--
>> drivers/md/dm-verity-verify-sig.c:38:26: sparse: sparse: not enough arguments for function request_key

vim +207 fs/crypto/keyring.c

23c688b54016ee Eric Biggers 2019-08-04  194  
22d94f493bfb40 Eric Biggers 2019-08-04  195  /* Create ->s_master_keys if needed.  Synchronized by fscrypt_add_key_mutex. */
22d94f493bfb40 Eric Biggers 2019-08-04  196  static int allocate_filesystem_keyring(struct super_block *sb)
22d94f493bfb40 Eric Biggers 2019-08-04  197  {
22d94f493bfb40 Eric Biggers 2019-08-04  198  	char description[FSCRYPT_FS_KEYRING_DESCRIPTION_SIZE];
22d94f493bfb40 Eric Biggers 2019-08-04  199  	struct key *keyring;
22d94f493bfb40 Eric Biggers 2019-08-04  200  
22d94f493bfb40 Eric Biggers 2019-08-04  201  	if (sb->s_master_keys)
22d94f493bfb40 Eric Biggers 2019-08-04  202  		return 0;
22d94f493bfb40 Eric Biggers 2019-08-04  203  
22d94f493bfb40 Eric Biggers 2019-08-04  204  	format_fs_keyring_description(description, sb);
22d94f493bfb40 Eric Biggers 2019-08-04  205  	keyring = keyring_alloc(description, GLOBAL_ROOT_UID, GLOBAL_ROOT_GID,
22d94f493bfb40 Eric Biggers 2019-08-04  206  				current_cred(), KEY_POS_SEARCH |
22d94f493bfb40 Eric Biggers 2019-08-04 @207  				  KEY_USR_SEARCH | KEY_USR_READ | KEY_USR_VIEW,
22d94f493bfb40 Eric Biggers 2019-08-04  208  				KEY_ALLOC_NOT_IN_QUOTA, NULL, NULL);
22d94f493bfb40 Eric Biggers 2019-08-04  209  	if (IS_ERR(keyring))
22d94f493bfb40 Eric Biggers 2019-08-04  210  		return PTR_ERR(keyring);
22d94f493bfb40 Eric Biggers 2019-08-04  211  
22d94f493bfb40 Eric Biggers 2019-08-04  212  	/* Pairs with READ_ONCE() in fscrypt_find_master_key() */
22d94f493bfb40 Eric Biggers 2019-08-04  213  	smp_store_release(&sb->s_master_keys, keyring);
22d94f493bfb40 Eric Biggers 2019-08-04  214  	return 0;
22d94f493bfb40 Eric Biggers 2019-08-04  215  }
22d94f493bfb40 Eric Biggers 2019-08-04  216  

:::::: The code at line 207 was first introduced by commit
:::::: 22d94f493bfb408fdd764f7b1d0363af2122fba5 fscrypt: add FS_IOC_ADD_ENCRYPTION_KEY ioctl

:::::: TO: Eric Biggers <ebiggers@google.com>
:::::: CC: Eric Biggers <ebiggers@google.com>

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