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@xxxxxxxxx/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@xxxxxxxxx/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 <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202502090223.qCYMBjWT-lkp@xxxxxxxxx/ 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
