On Sun, May 21, 2017 at 5:47 AM, kbuild test robot
<fengguang.wu@xxxxxxxxx> wrote:
> 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)
I haven't looked at this too closely, but this may not be significant
... Daniel, can you look into this please?
> 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++;
>
> ---
> 0-DAY kernel test infrastructure Open Source Technology Center
> https://lists.01.org/pipermail/kbuild-all Intel Corporation
--
paul moore
www.paul-moore.com
