Re: [PATCH 2/3] mm, slab: use an enum to define SLAB_ cache creation flags

[kernel test robot <lkp@intel.com>]

Hi Vlastimil,

kernel test robot noticed the following build warnings:

[auto build test WARNING on 6613476e225e090cc9aad49be7fa504e290dd33d]

url:    https://github.com/intel-lab-lkp/linux/commits/Vlastimil-Babka/mm-slab-deprecate-SLAB_MEM_SPREAD-flag/20240221-005936
base:   6613476e225e090cc9aad49be7fa504e290dd33d
patch link:    https://lore.kernel.org/r/20240220-slab-cleanup-flags-v1-2-e657e373944a%40suse.cz
patch subject: [PATCH 2/3] mm, slab: use an enum to define SLAB_ cache creation flags
config: i386-randconfig-062-20240222 (https://download.01.org/0day-ci/archive/20240222/202402220901.BkG3ubx4-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240222/202402220901.BkG3ubx4-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202402220901.BkG3ubx4-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> fs/adfs/super.c:252:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/adfs/super.c:252:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/adfs/super.c:252:64: sparse:     got int
--
>> fs/affs/super.c:134:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/affs/super.c:134:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/affs/super.c:134:64: sparse:     got int
--
>> fs/btrfs/transaction.c:2725:40: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/btrfs/transaction.c:2725:40: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/btrfs/transaction.c:2725:40: sparse:     got int
   fs/btrfs/transaction.c: note: in included file (through include/linux/wait.h, include/linux/wait_bit.h, include/linux/fs.h):
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   fs/btrfs/transaction.c: note: in included file (through arch/x86/include/generated/asm/unaligned.h, fs/btrfs/accessors.h, fs/btrfs/ctree.h):
   include/asm-generic/unaligned.h:37:16: sparse: sparse: self-comparison always evaluates to true
   fs/btrfs/transaction.c: note: in included file (through include/linux/wait.h, include/linux/wait_bit.h, include/linux/fs.h):
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
--
>> fs/btrfs/inode.c:8664:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/btrfs/inode.c:8664:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/btrfs/inode.c:8664:64: sparse:     got int
   fs/btrfs/inode.c: note: in included file (through include/linux/swait.h, include/linux/completion.h, include/linux/crypto.h, ...):
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   fs/btrfs/inode.c: note: in included file (through include/linux/string.h, arch/x86/include/asm/page_32.h, arch/x86/include/asm/page.h, ...):
   include/linux/err.h:41:17: sparse: sparse: self-comparison always evaluates to false
   fs/btrfs/inode.c: note: in included file (through include/linux/swait.h, include/linux/completion.h, include/linux/crypto.h, ...):
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
   include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true
--
>> fs/efs/super.c:94:69: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/efs/super.c:94:69: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/efs/super.c:94:69: sparse:     got int
--
>> fs/freevxfs/vxfs_super.c:310:45: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/freevxfs/vxfs_super.c:310:45: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/freevxfs/vxfs_super.c:310:45: sparse:     got int
--
>> fs/jffs2/super.c:390:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/jffs2/super.c:390:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/jffs2/super.c:390:64: sparse:     got int
--
>> fs/minix/inode.c:90:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/minix/inode.c:90:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/minix/inode.c:90:64: sparse:     got int
--
>> fs/nilfs2/super.c:1404:45: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/nilfs2/super.c:1404:45: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/nilfs2/super.c:1404:45: sparse:     got int
--
>> fs/qnx6/inode.c:618:64: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/qnx6/inode.c:618:64: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/qnx6/inode.c:618:64: sparse:     got int
--
>> fs/romfs/super.c:633:74: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/romfs/super.c:633:74: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/romfs/super.c:633:74: sparse:     got int
--
>> fs/sysv/inode.c:339:61: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/sysv/inode.c:339:61: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/sysv/inode.c:339:61: sparse:     got int
--
>> fs/ufs/super.c:1473:70: sparse: sparse: incorrect type in argument 4 (different base types) @@     expected restricted slab_flags_t [usertype] flags @@     got int @@
   fs/ufs/super.c:1473:70: sparse:     expected restricted slab_flags_t [usertype] flags
   fs/ufs/super.c:1473:70: sparse:     got int

vim +252 fs/adfs/super.c

^1da177e4c3f41 Linus Torvalds   2005-04-16  246  
894122db491350 Fabian Frederick 2014-04-07  247  static int __init init_inodecache(void)
^1da177e4c3f41 Linus Torvalds   2005-04-16  248  {
^1da177e4c3f41 Linus Torvalds   2005-04-16  249  	adfs_inode_cachep = kmem_cache_create("adfs_inode_cache",
^1da177e4c3f41 Linus Torvalds   2005-04-16  250  					     sizeof(struct adfs_inode_info),
fffb60f93ce588 Paul Jackson     2006-03-24  251  					     0, (SLAB_RECLAIM_ACCOUNT|
5d097056c9a017 Vladimir Davydov 2016-01-14 @252  						SLAB_MEM_SPREAD|SLAB_ACCOUNT),
20c2df83d25c6a Paul Mundt       2007-07-20  253  					     init_once);
^1da177e4c3f41 Linus Torvalds   2005-04-16  254  	if (adfs_inode_cachep == NULL)
^1da177e4c3f41 Linus Torvalds   2005-04-16  255  		return -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  256  	return 0;
^1da177e4c3f41 Linus Torvalds   2005-04-16  257  }
^1da177e4c3f41 Linus Torvalds   2005-04-16  258  

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