Messages in this thread | | | Date | Wed, 3 Jun 2020 21:32:13 +0800 | From | kernel test robot <> | Subject | drivers/crypto/hisilicon/qm.c:1579:2: warning: 'strncpy' specified bound 64 equals destination size |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d6f9469a03d832dcd17041ed67774ffb5f3e73b3 commit: 9e00df7156e45e42c695ffc596b4bf1328d00516 crypto: hisilicon - register zip engine to uacce date: 3 months ago config: ia64-randconfig-r026-20200603 (attached as .config) compiler: ia64-linux-gcc (GCC) 9.3.0 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 git checkout 9e00df7156e45e42c695ffc596b4bf1328d00516 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
In function 'qm_alloc_uacce', inlined from 'hisi_qm_init' at drivers/crypto/hisilicon/qm.c:1660:8: >> drivers/crypto/hisilicon/qm.c:1579:2: warning: 'strncpy' specified bound 64 equals destination size [-Wstringop-truncation] 1579 | strncpy(interface.name, pdev->driver->name, sizeof(interface.name)); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/strncpy +1579 drivers/crypto/hisilicon/qm.c
1567 1568 static int qm_alloc_uacce(struct hisi_qm *qm) 1569 { 1570 struct pci_dev *pdev = qm->pdev; 1571 struct uacce_device *uacce; 1572 unsigned long mmio_page_nr; 1573 unsigned long dus_page_nr; 1574 struct uacce_interface interface = { 1575 .flags = UACCE_DEV_SVA, 1576 .ops = &uacce_qm_ops, 1577 }; 1578 > 1579 strncpy(interface.name, pdev->driver->name, sizeof(interface.name)); 1580 1581 uacce = uacce_alloc(&pdev->dev, &interface); 1582 if (IS_ERR(uacce)) 1583 return PTR_ERR(uacce); 1584 1585 if (uacce->flags & UACCE_DEV_SVA) { 1586 qm->use_sva = true; 1587 } else { 1588 /* only consider sva case */ 1589 uacce_remove(uacce); 1590 qm->uacce = NULL; 1591 return -EINVAL; 1592 } 1593 1594 uacce->is_vf = pdev->is_virtfn; 1595 uacce->priv = qm; 1596 uacce->algs = qm->algs; 1597 1598 if (qm->ver == QM_HW_V1) { 1599 mmio_page_nr = QM_DOORBELL_PAGE_NR; 1600 uacce->api_ver = HISI_QM_API_VER_BASE; 1601 } else { 1602 mmio_page_nr = QM_DOORBELL_PAGE_NR + 1603 QM_DOORBELL_SQ_CQ_BASE_V2 / PAGE_SIZE; 1604 uacce->api_ver = HISI_QM_API_VER2_BASE; 1605 } 1606 1607 dus_page_nr = (PAGE_SIZE - 1 + qm->sqe_size * QM_Q_DEPTH + 1608 sizeof(struct qm_cqe) * QM_Q_DEPTH) >> PAGE_SHIFT; 1609 1610 uacce->qf_pg_num[UACCE_QFRT_MMIO] = mmio_page_nr; 1611 uacce->qf_pg_num[UACCE_QFRT_DUS] = dus_page_nr; 1612 1613 qm->uacce = uacce; 1614 1615 return 0; 1616 } 1617
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