tree: git://git.infradead.org/users/pcmoore/selinux next
head: b76dd295790d44ecb04932110309bb6c15f263a8
commit: b76dd295790d44ecb04932110309bb6c15f263a8 [17/17] selinux: Add a cache for quicker retreival of PKey SIDs
reproduce:
# apt-get install sparse
git checkout b76dd295790d44ecb04932110309bb6c15f263a8
make ARCH=x86_64 allmodconfig
make C=1 CF=-D__CHECK_ENDIAN__
sparse warnings: (new ones prefixed by >>)
include/linux/compiler.h:264:8: sparse: attribute 'no_sanitize_address': unknown attribute
>> security/selinux/ibpkey.c:116:24: sparse: incompatible types in comparison expression (different address spaces)
vim +116 security/selinux/ibpkey.c
100 * Description:
101 * Add a new pkey record to the hash table.
102 *
103 */
104 static void sel_ib_pkey_insert(struct sel_ib_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_ib_pkey_hashfn(pkey->psec.pkey);
112 list_add_rcu(&pkey->list, &sel_ib_pkey_hash[idx].list);
113 if (sel_ib_pkey_hash[idx].size == SEL_PKEY_HASH_BKT_LIMIT) {
114 struct sel_ib_pkey *tail;
115
> 116 tail = list_entry(
117 rcu_dereference_protected(
118 sel_ib_pkey_hash[idx].list.prev,
119 lockdep_is_held(&sel_ib_pkey_lock)),
120 struct sel_ib_pkey, list);
121 list_del_rcu(&tail->list);
122 kfree_rcu(tail, rcu);
123 } else {
124 sel_ib_pkey_hash[idx].size++;
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0-DAY kernel test infrastructure Open Source Technology Center
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