On Thu, Aug 6, 2015 at 9:59 PM, kbuild test robot <fengguang.wu@xxxxxxxxx> wrote: > tree: git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: c6b169e6ffb962068153bd92b0c4ecbd731a122f > commit: e2e60954eae9929a982d12b6ff24a91b37822f34 [6299/6518] zswap: change zpool/compressor at runtime > config: s390-allyesconfig (attached as .config) > reproduce: > wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross > chmod +x ~/bin/make.cross > git checkout e2e60954eae9929a982d12b6ff24a91b37822f34 > # save the attached .config to linux build tree > make.cross ARCH=s390 > > All warnings (new ones prefixed by >>): > > mm/zswap.c: In function '__zswap_param_set': >>> mm/zswap.c:759:1: warning: '__zswap_param_set' uses dynamic stack allocation ugh, ok. It really should be fine, but I'll send a patch to use a static-sized array instead; we know it's never more than 64 bytes. > } > ^ > > vim +/__zswap_param_set +759 mm/zswap.c > > 743 * list; if it's new (and empty) then it'll be removed and > 744 * destroyed by the put after we drop the lock > 745 */ > 746 list_add_tail_rcu(&pool->list, &zswap_pools); > 747 put_pool = pool; > 748 } > 749 > 750 spin_unlock(&zswap_pools_lock); > 751 > 752 /* drop the ref from either the old current pool, > 753 * or the new pool we failed to add > 754 */ > 755 if (put_pool) > 756 zswap_pool_put(put_pool); > 757 > 758 return ret; > > 759 } > 760 > 761 static int zswap_compressor_param_set(const char *val, > 762 const struct kernel_param *kp) > 763 { > 764 return __zswap_param_set(val, kp, zswap_zpool_type, NULL); > 765 } > 766 > 767 static int zswap_zpool_param_set(const char *val, > > --- > 0-DAY kernel test infrastructure Open Source Technology Center > https://lists.01.org/pipermail/kbuild-all Intel Corporation -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>