Re: [PATCH 07/12] selinux: Add a cache for quicker retreival of PKey SIDs

[kbuild test robot <lkp-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>]

Hi,

[auto build test WARNING on rdma/master]
[also build test WARNING on v4.7-rc4]
[cannot apply to pcmoore-selinux/next next-20160623]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Dan-Jurgens/SELinux-support-for-Infiniband-RDMA/20160624-035944
base:   https://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma master
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF=-D__CHECK_ENDIAN__


sparse warnings: (new ones prefixed by >>)

   include/linux/compiler.h:232:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> security/selinux/pkey.c:116:24: sparse: incompatible types in comparison expression (different address spaces)

vim +116 security/selinux/pkey.c

   100	 * Description:
   101	 * Add a new pkey record to the hash table.
   102	 *
   103	 */
   104	static void sel_pkey_insert(struct sel_pkey *pkey)
   105	{
   106		unsigned int idx;
   107	
   108		/* we need to impose a limit on the growth of the hash table so check
   109		 * this bucket to make sure it is within the specified bounds
   110		 */
   111		idx = sel_pkey_hashfn(pkey->psec.pkey);
   112		list_add_rcu(&pkey->list, &sel_pkey_hash[idx].list);
   113		if (sel_pkey_hash[idx].size == SEL_PKEY_HASH_BKT_LIMIT) {
   114			struct sel_pkey *tail;
   115	
 > 116			tail = list_entry(
   117				rcu_dereference_protected(
   118					sel_pkey_hash[idx].list.prev,
   119					lockdep_is_held(&sel_pkey_lock)),
   120				struct sel_pkey, list);
   121			list_del_rcu(&tail->list);
   122			kfree_rcu(tail, rcu);
   123		} else {
   124			sel_pkey_hash[idx].size++;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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