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Date: Sat, 24 Jul 2021 00:58:39 +0800
From: kernel test robot <lkp@...el.com>
To: Dongdong Liu <liudongdong3@...wei.com>, helgaas@...nel.org,
hch@...radead.org, kw@...ux.com, logang@...tatee.com,
linux-pci@...r.kernel.org, rajur@...lsio.com,
hverkuil-cisco@...all.nl
Cc: clang-built-linux@...glegroups.com, kbuild-all@...ts.01.org,
linux-media@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH V6 7/8] PCI: Add "pci=disable_10bit_tag=" parameter for
peer-to-peer support
Hi Dongdong,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on pci/next]
[also build test WARNING on linuxtv-media/master linus/master v5.14-rc2 next-20210723]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Dongdong-Liu/PCI-Enable-10-Bit-tag-support-for-PCIe-devices/20210723-190930
base: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
config: x86_64-randconfig-b001-20210723 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9625ca5b602616b2f5584e8a49ba93c52c141e40)
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
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://github.com/0day-ci/linux/commit/2ff0b803971a3df5815c96c5c4874f4eef64fa2f
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Dongdong-Liu/PCI-Enable-10-Bit-tag-support-for-PCIe-devices/20210723-190930
git checkout 2ff0b803971a3df5815c96c5c4874f4eef64fa2f
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/pci/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All warnings (new ones prefixed by >>):
drivers/pci/pci.c:6618:34: error: expected identifier
pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
^
include/uapi/linux/pci_regs.h:657:26: note: expanded from macro 'PCI_EXP_DEVCTL2'
#define PCI_EXP_DEVCTL2 40 /* Device Control 2 */
^
>> drivers/pci/pci.c:6618:2: warning: declaration specifier missing, defaulting to 'int'
pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
^
int
drivers/pci/pci.c:6618:28: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
^
drivers/pci/pci.c:6618:2: error: conflicting types for 'pcie_capability_clear_word'
pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
^
include/linux/pci.h:1161:19: note: previous definition is here
static inline int pcie_capability_clear_word(struct pci_dev *dev, int pos,
^
drivers/pci/pci.c:6621:2: error: expected parameter declarator
pci_info(dev, "disabled 10-Bit Tag Requester\n");
^
include/linux/pci.h:2472:46: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
drivers/pci/pci.c:6621:2: error: expected ')'
include/linux/pci.h:2472:46: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
drivers/pci/pci.c:6621:2: note: to match this '('
include/linux/pci.h:2472:37: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
include/linux/dev_printk.h:118:11: note: expanded from macro 'dev_info'
_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
^
drivers/pci/pci.c:6621:2: warning: declaration specifier missing, defaulting to 'int'
pci_info(dev, "disabled 10-Bit Tag Requester\n");
^
int
include/linux/pci.h:2472:37: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
include/linux/dev_printk.h:118:2: note: expanded from macro 'dev_info'
_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
^
drivers/pci/pci.c:6621:2: error: this function declaration is not a prototype [-Werror,-Wstrict-prototypes]
include/linux/pci.h:2472:37: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
include/linux/dev_printk.h:118:11: note: expanded from macro 'dev_info'
_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
^
drivers/pci/pci.c:6621:2: error: conflicting types for '_dev_info'
include/linux/pci.h:2472:37: note: expanded from macro 'pci_info'
#define pci_info(pdev, fmt, arg...) dev_info(&(pdev)->dev, fmt, ##arg)
^
include/linux/dev_printk.h:118:2: note: expanded from macro 'dev_info'
_dev_info(dev, dev_fmt(fmt), ##__VA_ARGS__)
^
include/linux/dev_printk.h:56:6: note: previous declaration is here
void _dev_info(const struct device *dev, const char *fmt, ...);
^
drivers/pci/pci.c:6622:1: error: extraneous closing brace ('}')
}
^
2 warnings and 8 errors generated.
vim +/int +6618 drivers/pci/pci.c
6580
6581 if (!disable_10bit_tag_param)
6582 return;
6583
6584 p = disable_10bit_tag_param;
6585 while (*p) {
6586 ret = pci_dev_str_match(dev, p, &p);
6587 if (ret < 0) {
6588 pr_info_once("PCI: Can't parse disable_10bit_tag parameter: %s\n",
6589 disable_10bit_tag_param);
6590
6591 break;
6592 } else if (ret == 1) {
6593 /* Found a match */
6594 break;
6595 }
6596
6597 if (*p != ';' && *p != ',') {
6598 /* End of param or invalid format */
6599 break;
6600 }
6601 p++;
6602 }
6603
6604 if (ret != 1)
6605 return;
6606
6607 #ifdef CONFIG_PCI_IOV
6608 if (dev->is_virtfn) {
6609 iov = dev->physfn->sriov;
6610 iov->ctrl &= ~PCI_SRIOV_CTRL_VF_10BIT_TAG_REQ_EN;
6611 pci_write_config_word(dev, iov->pos + PCI_SRIOV_CTRL,
6612 iov->ctrl);
6613 pci_info(dev, "disabled PF SRIOV 10-Bit Tag Requester\n");
6614 return;
6615 #endif
6616 }
6617
> 6618 pcie_capability_clear_word(dev, PCI_EXP_DEVCTL2,
6619 PCI_EXP_DEVCTL2_10BIT_TAG_REQ_EN);
6620
6621 pci_info(dev, "disabled 10-Bit Tag Requester\n");
6622 }
6623
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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