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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Simon Horman , Shuah Khan , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt Cc: oe-kbuild-all@lists.linux.dev, Linux Memory Management List , netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, llvm@lists.linux.dev, Tamir Duberstein Subject: Re: [PATCH] blackhole_dev: convert self-test to KUnit Message-ID: <202502090223.qCYMBjWT-lkp@intel.com> References: <20250207-blackholedev-kunit-convert-v1-1-8ef0dc1ff881@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250207-blackholedev-kunit-convert-v1-1-8ef0dc1ff881@gmail.com> X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 08B121A000C X-Stat-Signature: 3szwuzxe6tnw7cso4fn66n38wsgfyz6x X-HE-Tag: 1739039868-287724 X-HE-Meta: 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 3/XETQQx Gt63PyF5QSzsEr+uyvqN0S9byKYRZaR0ACX4UqRFrahy76u0kaQfawzpd4a4Jkf1P5hZSP7FfyH31huDF3hmdfjfCh+0bOz/auFW4vVMEvEBB0Mqzko9cjzBDHrGfGMez0SJTJRiPhYf/S6kQjFWPXStjYpWoLui60l0MsY12pK+DfY1fhRmb7IxjncgTUsoZqBDP9wIC2B6ViihRPIANAHPppnzuYCXym6d7L7JYDDmhQk8Rro+RwyZqLPcxd44C/oDiyxNFMtTnxBu7GNBEVaImVGkJYlT24rXl6ZwYBtzRzlcdNf2Eyr+MMVkrvsAUW0lhinSxX/X+BeYsWLCAxaLHZ0YV9pK7CooHVfdS4hr+5if0TYM/qT+8iVlB13kEHxFwJkdKcFRxvsIDtvC37mbQew== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Tamir, kernel test robot noticed the following build warnings: [auto build test WARNING on 2014c95afecee3e76ca4a56956a936e23283f05b] url: https://github.com/intel-lab-lkp/linux/commits/Tamir-Duberstein/blackhole_dev-convert-self-test-to-KUnit/20250208-074037 base: 2014c95afecee3e76ca4a56956a936e23283f05b patch link: https://lore.kernel.org/r/20250207-blackholedev-kunit-convert-v1-1-8ef0dc1ff881%40gmail.com patch subject: [PATCH] blackhole_dev: convert self-test to KUnit config: i386-randconfig-062-20250208 (https://download.01.org/0day-ci/archive/20250209/202502090223.qCYMBjWT-lkp@intel.com/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250209/202502090223.qCYMBjWT-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202502090223.qCYMBjWT-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> lib/blackhole_dev_kunit.c:55:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __be16 [usertype] payload_len @@ got unsigned int @@ lib/blackhole_dev_kunit.c:55:27: sparse: expected restricted __be16 [usertype] payload_len lib/blackhole_dev_kunit.c:55:27: sparse: got unsigned int vim +55 lib/blackhole_dev_kunit.c 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 26 a644885645ce86 lib/blackhole_dev_kunit.c Tamir Duberstein 2025-02-07 27 static void test_blackholedev(struct kunit *test) 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 28 { 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 29 struct ipv6hdr *ip6h; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 30 struct sk_buff *skb; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 31 struct udphdr *uh; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 32 int data_len; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 33 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 34 skb = alloc_skb(SKB_SIZE, GFP_KERNEL); a644885645ce86 lib/blackhole_dev_kunit.c Tamir Duberstein 2025-02-07 35 KUNIT_ASSERT_NOT_NULL(test, skb); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 36 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 37 /* Reserve head-room for the headers */ 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 38 skb_reserve(skb, HEAD_SIZE); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 39 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 40 /* Add data to the skb */ 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 41 data_len = SKB_SIZE - (HEAD_SIZE + TAIL_SIZE); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 42 memset(__skb_put(skb, data_len), 0xf, data_len); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 43 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 44 /* Add protocol data */ 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 45 /* (Transport) UDP */ 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 46 uh = (struct udphdr *)skb_push(skb, sizeof(struct udphdr)); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 47 skb_set_transport_header(skb, 0); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 48 uh->source = uh->dest = htons(UDP_PORT); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 49 uh->len = htons(data_len); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 50 uh->check = 0; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 51 /* (Network) IPv6 */ 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 52 ip6h = (struct ipv6hdr *)skb_push(skb, sizeof(struct ipv6hdr)); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 53 skb_set_network_header(skb, 0); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 54 ip6h->hop_limit = 32; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 @55 ip6h->payload_len = data_len + sizeof(struct udphdr); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 56 ip6h->nexthdr = IPPROTO_UDP; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 57 ip6h->saddr = in6addr_loopback; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 58 ip6h->daddr = in6addr_loopback; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 59 /* Ether */ 843a8851e89e2e lib/test_blackhole_dev.c Breno Leitao 2024-02-02 60 skb_push(skb, sizeof(struct ethhdr)); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 61 skb_set_mac_header(skb, 0); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 62 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 63 skb->protocol = htons(ETH_P_IPV6); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 64 skb->pkt_type = PACKET_HOST; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 65 skb->dev = blackhole_netdev; 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 66 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 67 /* Now attempt to send the packet */ a644885645ce86 lib/blackhole_dev_kunit.c Tamir Duberstein 2025-02-07 68 KUNIT_EXPECT_EQ(test, dev_queue_xmit(skb), NET_XMIT_SUCCESS); 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 69 } 509e56b37cc32c lib/test_blackhole_dev.c Mahesh Bandewar 2019-07-01 70 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki