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Message-ID: <202011172213.JSgBtjZd-lkp@intel.com>
Date: Tue, 17 Nov 2020 22:33:48 +0800
From: kernel test robot <lkp@...el.com>
To: matthew.gerlach@...ux.intel.com, linux-fpga@...r.kernel.org,
linux-kernel@...r.kernel.org, mdf@...nel.org, hao.wu@...el.com,
trix@...hat.com, linux-doc@...r.kernel.org, corbet@....net
Cc: kbuild-all@...ts.01.org,
Matthew Gerlach <matthew.gerlach@...ux.intel.com>
Subject: Re: [PATCH 2/2] fpga: dfl: look for vendor specific capability
Hi,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linux/master]
[also build test WARNING on linus/master v5.10-rc4 next-20201117]
[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/matthew-gerlach-linux-intel-com/fpga-dfl-optional-VSEC-for-start-of-dfl/20201117-092704
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 09162bc32c880a791c6c0668ce0745cf7958f576
config: xtensa-randconfig-r015-20201116 (attached as .config)
compiler: xtensa-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
# https://github.com/0day-ci/linux/commit/b7db30a055d8c6a2cb8fade07b60918c59ecceb7
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review matthew-gerlach-linux-intel-com/fpga-dfl-optional-VSEC-for-start-of-dfl/20201117-092704
git checkout b7db30a055d8c6a2cb8fade07b60918c59ecceb7
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=xtensa
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 >>):
In file included from include/linux/device.h:15,
from include/linux/pci.h:37,
from drivers/fpga/dfl-pci.c:17:
drivers/fpga/dfl-pci.c: In function 'find_dfl_in_cfg':
>> drivers/fpga/dfl-pci.c:183:26: warning: format '%llu' expects argument of type 'long long unsigned int', but argument 5 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/fpga/dfl-pci.c:183:4: note: in expansion of macro 'dev_err'
183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n",
| ^~~~~~~
drivers/fpga/dfl-pci.c:183:50: note: format string is defined here
183 | dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n",
| ~~~^
| |
| long long unsigned int
| %u
In file included from include/linux/device.h:15,
from include/linux/pci.h:37,
from drivers/fpga/dfl-pci.c:17:
>> drivers/fpga/dfl-pci.c:194:26: warning: format '%llx' expects argument of type 'long long unsigned int', but argument 4 has type 'resource_size_t' {aka 'unsigned int'} [-Wformat=]
194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/dev_printk.h:19:22: note: in definition of macro 'dev_fmt'
19 | #define dev_fmt(fmt) fmt
| ^~~
drivers/fpga/dfl-pci.c:194:4: note: in expansion of macro 'dev_err'
194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n",
| ^~~~~~~
drivers/fpga/dfl-pci.c:194:50: note: format string is defined here
194 | dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n",
| ~~~^
| |
| long long unsigned int
| %x
vim +183 drivers/fpga/dfl-pci.c
128
129 static int find_dfl_in_cfg(struct pci_dev *pcidev,
130 struct dfl_fpga_enum_info *info)
131 {
132 u32 bar, offset, vndr_hdr, dfl_cnt, dfl_res;
133 int dfl_res_off, i, voff = 0;
134 resource_size_t start, len;
135
136 while ((voff = pci_find_next_ext_capability(pcidev, voff, PCI_EXT_CAP_ID_VNDR))) {
137
138 pci_read_config_dword(pcidev, voff + PCI_VNDR_HEADER, &vndr_hdr);
139
140 dev_dbg(&pcidev->dev,
141 "vendor-specific capability id 0x%x, rev 0x%x len 0x%x\n",
142 PCI_VNDR_HEADER_ID(vndr_hdr),
143 PCI_VNDR_HEADER_REV(vndr_hdr),
144 PCI_VNDR_HEADER_LEN(vndr_hdr));
145
146 if (PCI_VNDR_HEADER_ID(vndr_hdr) == PCI_VNDR_ID_DFLS)
147 break;
148 }
149
150 if (!voff) {
151 dev_dbg(&pcidev->dev, "%s no VSEC found\n", __func__);
152 return -ENODEV;
153 }
154
155 pci_read_config_dword(pcidev, voff + PCI_VNDR_DFLS_CNT_OFFSET, &dfl_cnt);
156 dev_info(&pcidev->dev, "dfl_cnt %d\n", dfl_cnt);
157 for (i = 0; i < dfl_cnt; i++) {
158 dfl_res_off = voff + PCI_VNDR_DFLS_RES_OFFSET +
159 (i * sizeof(dfl_res));
160 pci_read_config_dword(pcidev, dfl_res_off, &dfl_res);
161
162 dev_dbg(&pcidev->dev, "dfl_res 0x%x\n", dfl_res);
163
164 bar = dfl_res & PCI_VND_DFLS_RES_BAR_MASK;
165
166 if (bar >= PCI_STD_NUM_BARS) {
167 dev_err(&pcidev->dev, "%s bad bar number %d\n",
168 __func__, bar);
169 return -EINVAL;
170 }
171
172 len = pci_resource_len(pcidev, bar);
173
174 if (len == 0) {
175 dev_err(&pcidev->dev, "%s unmapped bar number %d\n",
176 __func__, bar);
177 return -EINVAL;
178 }
179
180 offset = dfl_res & ~PCI_VND_DFLS_RES_BAR_MASK;
181
182 if (offset >= len) {
> 183 dev_err(&pcidev->dev, "%s bad offset %u >= %llu\n",
184 __func__, offset, len);
185 return -EINVAL;
186 }
187
188 dev_info(&pcidev->dev, "%s BAR %d offset 0x%x\n", __func__, bar, offset);
189
190 start = pci_resource_start(pcidev, bar) + offset;
191 len -= offset;
192
193 if (!PAGE_ALIGNED(start)) {
> 194 dev_err(&pcidev->dev, "%s unaliged start 0x%llx\n",
195 __func__, start);
196 return -EINVAL;
197 }
198
199 dfl_fpga_enum_info_add_dfl(info, start, len);
200 }
201
202 return 0;
203 }
204
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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