CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-arm-ker...@lists.infradead.org TO: Piyush Mehta <piyush.me...@xilinx.com> CC: Michal Simek <mon...@monstr.eu> CC: Manish Narani <manish.nar...@xilinx.com>
tree: https://github.com/Xilinx/linux-xlnx xlnx_rebase_v5.15_LTS head: 802aff9b79e15ede7cbb84ac784f943f5a66287a commit: 9a7535b91e5a749ad7e26fade0820c4c847ff8e2 [405/973] usb: xhci-plat: Add remote wakeup support for xilinx :::::: branch date: 8 days ago :::::: commit date: 6 weeks ago config: x86_64-randconfig-c007 (https://download.01.org/0day-ci/archive/20220312/202203120636.jau4dhu1-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 276ca87382b8f16a65bddac700202924228982f6) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/Xilinx/linux-xlnx/commit/9a7535b91e5a749ad7e26fade0820c4c847ff8e2 git remote add xilinx-xlnx https://github.com/Xilinx/linux-xlnx git fetch --no-tags xilinx-xlnx xlnx_rebase_v5.15_LTS git checkout 9a7535b91e5a749ad7e26fade0820c4c847ff8e2 # save the config file to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 5 warnings generated. Suppressed 5 warnings (5 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 7 warnings generated. Suppressed 7 warnings (7 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (4 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. drivers/i3c/master/mipi-i3c-hci/ext_caps.c:78:7: warning: Value stored to 'mode_entry' during its initialization is never read [clang-analyzer-deadcode.DeadStores] u32 mode_entry = readl(base); ^~~~~~~~~~ drivers/i3c/master/mipi-i3c-hci/ext_caps.c:78:7: note: Value stored to 'mode_entry' during its initialization is never read u32 mode_entry = readl(base); ^~~~~~~~~~ Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 8 warnings generated. Suppressed 8 warnings (8 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 12 warnings generated. Suppressed 12 warnings (12 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 18 warnings generated. drivers/net/ethernet/broadcom/bcmsysport.c:903:21: warning: Value stored to 'ndev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct net_device *ndev = priv->netdev; ^~~~ ~~~~~~~~~~~~ drivers/net/ethernet/broadcom/bcmsysport.c:903:21: note: Value stored to 'ndev' during its initialization is never read struct net_device *ndev = priv->netdev; ^~~~ ~~~~~~~~~~~~ Suppressed 17 warnings (13 in non-user code, 4 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 12 warnings generated. drivers/net/ethernet/fujitsu/fmvj18x_cs.c:580:5: warning: Value stored to 'j' is never read [clang-analyzer-deadcode.DeadStores] j = pcmcia_release_window(link, link->resource[2]); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/fujitsu/fmvj18x_cs.c:580:5: note: Value stored to 'j' is never read j = pcmcia_release_window(link, link->resource[2]); ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 17 warnings generated. >> drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1434:2: warning: Value >> stored to 'tail_p' is never read [clang-analyzer-deadcode.DeadStores] tail_p = q->tx_bd_p + sizeof(*q->tx_bd_v) * q->tx_bd_tail; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:1434:2: note: Value stored to 'tail_p' is never read tail_p = q->tx_bd_p + sizeof(*q->tx_bd_v) * q->tx_bd_tail; ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:3232:2: warning: Assigned value is garbage or undefined [clang-analyzer-core.uninitialized.Assign] int (*axienet_clk_init)(struct platform_device *pdev, ^ drivers/net/ethernet/xilinx/xilinx_axienet_main.c:3232:2: note: Assigned value is garbage or undefined int (*axienet_clk_init)(struct platform_device *pdev, ^ Suppressed 15 warnings (12 in non-user code, 3 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 12 warnings generated. drivers/net/ethernet/dnet.c:608:2: warning: Value stored to 'config' is never read [clang-analyzer-deadcode.DeadStores] config = dnet_readl(bp, INTR_SRC); ^ drivers/net/ethernet/dnet.c:608:2: note: Value stored to 'config' is never read Suppressed 11 warnings (11 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. drivers/iio/light/tsl2772.c:896:40: warning: The result of the left shift is undefined because the left operand is negative [clang-analyzer-core.UndefinedBinaryOperatorResult] chip->settings.prox_thres_high = (max << 1) - mean; ^ drivers/iio/light/tsl2772.c:1057:6: note: Assuming the condition is false if (kstrtobool(buf, &value) || !value) ^~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:1057:6: note: Left side of '||' is false drivers/iio/light/tsl2772.c:1057:33: note: Assuming 'value' is true if (kstrtobool(buf, &value) || !value) ^~~~~~ drivers/iio/light/tsl2772.c:1057:2: note: Taking false branch if (kstrtobool(buf, &value) || !value) ^ drivers/iio/light/tsl2772.c:1060:8: note: Calling 'tsl2772_prox_cal' ret = tsl2772_prox_cal(indio_dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:875:6: note: Assuming field 'prox_max_samples_cal' is >= 1 if (chip->settings.prox_max_samples_cal < 1 || ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:875:6: note: Left side of '||' is false drivers/iio/light/tsl2772.c:876:6: note: Assuming field 'prox_max_samples_cal' is <= MAX_SAMPLES_CAL chip->settings.prox_max_samples_cal > MAX_SAMPLES_CAL) ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:875:2: note: Taking false branch if (chip->settings.prox_max_samples_cal < 1 || ^ drivers/iio/light/tsl2772.c:879:14: note: 'i' is < field 'prox_max_samples_cal' for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^ drivers/iio/light/tsl2772.c:879:2: note: Loop condition is true. Entering loop body for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^ drivers/iio/light/tsl2772.c:882:7: note: 'ret' is >= 0 if (ret < 0) ^~~ drivers/iio/light/tsl2772.c:882:3: note: Taking false branch if (ret < 0) ^ drivers/iio/light/tsl2772.c:879:14: note: Assuming 'i' is >= field 'prox_max_samples_cal' for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:879:2: note: Loop condition is false. Execution continues on line 888 for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^ drivers/iio/light/tsl2772.c:889:2: note: The value -2147483648 is assigned to 'max' max = INT_MIN; ^~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:890:14: note: Assuming 'i' is >= field 'prox_max_samples_cal' for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/iio/light/tsl2772.c:890:2: note: Loop condition is false. Execution continues on line 894 for (i = 0; i < chip->settings.prox_max_samples_cal; i++) { ^ drivers/iio/light/tsl2772.c:896:40: note: The result of the left shift is undefined because the left operand is negative chip->settings.prox_thres_high = (max << 1) - mean; ~~~ ^ Suppressed 9 warnings (8 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 6 warnings generated. Suppressed 6 warnings (6 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 14 warnings generated. fs/nfs/nfs4proc.c:1827:3: warning: Value stored to 'delegation' is never read [clang-analyzer-deadcode.DeadStores] delegation = &deleg_cur->stateid; ^ ~~~~~~~~~~~~~~~~~~~ fs/nfs/nfs4proc.c:1827:3: note: Value stored to 'delegation' is never read delegation = &deleg_cur->stateid; ^ ~~~~~~~~~~~~~~~~~~~ Suppressed 13 warnings (13 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. vim +/tail_p +1434 drivers/net/ethernet/xilinx/xilinx_axienet_main.c ee94241b2118ddd Saurabh Sengar 2021-01-22 1388 ee94241b2118ddd Saurabh Sengar 2021-01-22 1389 if (!q->eth_hasdre && ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1390 (((phys_addr_t)skb->data & 0x3) || num_frag > 0)) { ee94241b2118ddd Saurabh Sengar 2021-01-22 1391 skb_copy_and_csum_dev(skb, q->tx_buf[q->tx_bd_tail]); ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1392 ee94241b2118ddd Saurabh Sengar 2021-01-22 1393 cur_p->phys = q->tx_bufs_dma + ee94241b2118ddd Saurabh Sengar 2021-01-22 1394 (q->tx_buf[q->tx_bd_tail] - q->tx_bufs); ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1395 ee94241b2118ddd Saurabh Sengar 2021-01-22 1396 #ifdef CONFIG_AXIENET_HAS_MCDMA ee94241b2118ddd Saurabh Sengar 2021-01-22 1397 cur_p->cntrl = skb_pagelen(skb) | XMCDMA_BD_CTRL_TXSOF_MASK; ee94241b2118ddd Saurabh Sengar 2021-01-22 1398 #else ee94241b2118ddd Saurabh Sengar 2021-01-22 1399 cur_p->cntrl = skb_pagelen(skb) | XAXIDMA_BD_CTRL_TXSOF_MASK; ee94241b2118ddd Saurabh Sengar 2021-01-22 1400 #endif ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1401 goto out; ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1402 } else { 9dce88e232cf191 Appana Durga Kedareswara Rao 2020-01-24 1403 cur_p->phys = dma_map_single(ndev->dev.parent, skb->data, 9dce88e232cf191 Appana Durga Kedareswara Rao 2020-01-24 1404 skb_headlen(skb), DMA_TO_DEVICE); ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1405 } 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1406 cur_p->tx_desc_mapping = DESC_DMA_MAP_SINGLE; 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1407 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1408 for (ii = 0; ii < num_frag; ii++) { 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1409 u32 len; 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1410 skb_frag_t *frag; 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1411 ee94241b2118ddd Saurabh Sengar 2021-01-22 1412 if (++q->tx_bd_tail >= lp->tx_bd_num) ee94241b2118ddd Saurabh Sengar 2021-01-22 1413 q->tx_bd_tail = 0; 90c9074a1401aaf Michal Simek 2021-01-22 1414 ee94241b2118ddd Saurabh Sengar 2021-01-22 1415 #ifdef CONFIG_AXIENET_HAS_MCDMA ee94241b2118ddd Saurabh Sengar 2021-01-22 1416 cur_p = &q->txq_bd_v[q->tx_bd_tail]; ee94241b2118ddd Saurabh Sengar 2021-01-22 1417 #else ee94241b2118ddd Saurabh Sengar 2021-01-22 1418 cur_p = &q->tx_bd_v[q->tx_bd_tail]; ee94241b2118ddd Saurabh Sengar 2021-01-22 1419 #endif 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1420 frag = &skb_shinfo(skb)->frags[ii]; 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1421 len = skb_frag_size(frag); 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1422 cur_p->phys = skb_frag_dma_map(ndev->dev.parent, frag, 0, len, 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1423 DMA_TO_DEVICE); ee94241b2118ddd Saurabh Sengar 2021-01-22 1424 cur_p->cntrl = len; 396a9512783188d Appana Durga Kedareswara Rao 2021-01-22 1425 cur_p->tx_desc_mapping = DESC_DMA_MAP_PAGE; 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1426 } 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1427 ce8edb4cf93f176 Appana Durga Kedareswara Rao 2021-01-22 1428 out: ee94241b2118ddd Saurabh Sengar 2021-01-22 1429 #ifdef CONFIG_AXIENET_HAS_MCDMA ee94241b2118ddd Saurabh Sengar 2021-01-22 1430 cur_p->cntrl |= XMCDMA_BD_CTRL_TXEOF_MASK; ee94241b2118ddd Saurabh Sengar 2021-01-22 1431 tail_p = q->tx_bd_p + sizeof(*q->txq_bd_v) * q->tx_bd_tail; ee94241b2118ddd Saurabh Sengar 2021-01-22 1432 #else 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1433 cur_p->cntrl |= XAXIDMA_BD_CTRL_TXEOF_MASK; ee94241b2118ddd Saurabh Sengar 2021-01-22 @1434 tail_p = q->tx_bd_p + sizeof(*q->tx_bd_v) * q->tx_bd_tail; ee94241b2118ddd Saurabh Sengar 2021-01-22 1435 #endif ee94241b2118ddd Saurabh Sengar 2021-01-22 1436 cur_p->tx_skb = (phys_addr_t)skb; bf05571deda79b6 Appana Durga Kedareswara Rao 2020-01-24 1437 cur_p->tx_skb = (phys_addr_t)skb; 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1438 ee94241b2118ddd Saurabh Sengar 2021-01-22 1439 tail_p = q->tx_bd_p + sizeof(*q->tx_bd_v) * q->tx_bd_tail; 244a92b6cc6f9ae Appana Durga Kedareswara Rao 2020-01-24 1440 /* Ensure BD write before starting transfer */ 244a92b6cc6f9ae Appana Durga Kedareswara Rao 2020-01-24 1441 wmb(); 244a92b6cc6f9ae Appana Durga Kedareswara Rao 2020-01-24 1442 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1443 /* Start the transfer */ ee94241b2118ddd Saurabh Sengar 2021-01-22 1444 #ifdef CONFIG_AXIENET_HAS_MCDMA ee94241b2118ddd Saurabh Sengar 2021-01-22 1445 axienet_dma_bdout(q, XMCDMA_CHAN_TAILDESC_OFFSET(q->chan_id), ee94241b2118ddd Saurabh Sengar 2021-01-22 1446 tail_p); ee94241b2118ddd Saurabh Sengar 2021-01-22 1447 #else ee94241b2118ddd Saurabh Sengar 2021-01-22 1448 axienet_dma_bdout(q, XAXIDMA_TX_TDESC_OFFSET, tail_p); ee94241b2118ddd Saurabh Sengar 2021-01-22 1449 #endif ee94241b2118ddd Saurabh Sengar 2021-01-22 1450 if (++q->tx_bd_tail >= lp->tx_bd_num) ee94241b2118ddd Saurabh Sengar 2021-01-22 1451 q->tx_bd_tail = 0; 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1452 ee94241b2118ddd Saurabh Sengar 2021-01-22 1453 spin_unlock_irqrestore(&q->tx_lock, flags); dcbca0a74b25f96 Appana Durga Kedareswara Rao 2020-01-24 1454 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1455 return NETDEV_TX_OK; 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1456 } 8a3b7a252dca9fb Daniel Borkmann 2012-01-19 1457 :::::: The code at line 1434 was first introduced by commit :::::: ee94241b2118ddd38a456b2b805fc584b57de58f net: axienet: added multichannel DMA support :::::: TO: Saurabh Sengar <saurabh.si...@xilinx.com> :::::: CC: Michal Simek <michal.si...@xilinx.com> --- 0-DAY CI Kernel Test Service https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
