* [pci:wip/bjorn-vpd-v2 5/9] drivers/pci/vpd.c:89:7: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned char'
@ 2021-07-30 22:04 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-07-30 22:04 UTC (permalink / raw)
To: Bjorn Helgaas; +Cc: clang-built-linux, kbuild-all, linux-pci, Hannes Reinecke
[-- Attachment #1: Type: text/plain, Size: 5142 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git wip/bjorn-vpd-v2
head: d4466f3225fe2067d1a815ce03e1ab7abc6c3c28
commit: 49c5c3061498060f93d08a2386503596e0ff14be [5/9] PCI/VPD: Don't check Large Resource Item Names for validity
config: x86_64-randconfig-c001-20210730 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4f71f59bf3d9914188a11d0c41bedbb339d36ff5)
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://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?id=49c5c3061498060f93d08a2386503596e0ff14be
git remote add pci https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
git fetch --no-tags pci wip/bjorn-vpd-v2
git checkout 49c5c3061498060f93d08a2386503596e0ff14be
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
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 >>):
>> drivers/pci/vpd.c:89:7: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned char' [-Wformat]
tag, off + 1);
^~~
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
~~~ ^~~
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
>> drivers/pci/vpd.c:89:12: warning: data argument not used by format string [-Wformat-extra-args]
tag, off + 1);
^
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
~~~ ^
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^
>> drivers/pci/vpd.c:89:7: warning: variable 'tag' is uninitialized when used here [-Wuninitialized]
tag, off + 1);
^~~
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
^~~
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~
drivers/pci/vpd.c:79:20: note: initialize the variable 'tag' to silence this warning
unsigned char tag;
^
= '\0'
3 warnings generated.
vim +89 drivers/pci/vpd.c
67
68 /**
69 * pci_vpd_size - determine actual size of Vital Product Data
70 * @dev: pci device struct
71 * @old_size: current assumed size, also maximum allowed size
72 */
73 static size_t pci_vpd_size(struct pci_dev *dev, size_t old_size)
74 {
75 size_t off = 0;
76 unsigned char header[1+2]; /* 1 byte tag, 2 bytes length */
77
78 while (off < old_size && pci_read_vpd(dev, off, 1, header) == 1) {
79 unsigned char tag;
80 size_t size;
81
82 if (off == 0 && (header[0] == 0x00 || header[0] == 0xff))
83 goto error;
84
85 if (header[0] & PCI_VPD_LRDT) {
86 /* Large Resource Data Type Tag */
87 if (pci_read_vpd(dev, off + 1, 2, &header[1]) != 2) {
88 pci_warn(dev, "failed VPD read at offset %zu\n",
> 89 tag, off + 1);
90 return 0;
91 }
92 size = pci_vpd_lrdt_size(header);
93 if (off + size > PCI_VPD_MAX_SIZE)
94 goto error;
95
96 off += PCI_VPD_LRDT_TAG_SIZE + size;
97 } else {
98 /* Short Resource Data Type Tag */
99 tag = pci_vpd_srdt_tag(header);
100 size = pci_vpd_srdt_size(header);
101 if (size == 0 || off + size > PCI_VPD_MAX_SIZE)
102 goto error;
103
104 off += PCI_VPD_SRDT_TAG_SIZE + size;
105 if (tag == PCI_VPD_STIN_END) /* End tag descriptor */
106 return off;
107 }
108 }
109 return 0;
110
111 error:
112 pci_info(dev, "invalid VPD tag %#04x at offset %zu%s\n",
113 header[0], off, off == 0 ?
114 "; assume missing optional EEPROM" : "");
115 return 0;
116 }
117
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 28757 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
* [pci:wip/bjorn-vpd-v2 5/9] drivers/pci/vpd.c:89:7: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned char'
@ 2021-07-30 22:04 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-07-30 22:04 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 5252 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git wip/bjorn-vpd-v2
head: d4466f3225fe2067d1a815ce03e1ab7abc6c3c28
commit: 49c5c3061498060f93d08a2386503596e0ff14be [5/9] PCI/VPD: Don't check Large Resource Item Names for validity
config: x86_64-randconfig-c001-20210730 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 4f71f59bf3d9914188a11d0c41bedbb339d36ff5)
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://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?id=49c5c3061498060f93d08a2386503596e0ff14be
git remote add pci https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git
git fetch --no-tags pci wip/bjorn-vpd-v2
git checkout 49c5c3061498060f93d08a2386503596e0ff14be
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
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 >>):
>> drivers/pci/vpd.c:89:7: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned char' [-Wformat]
tag, off + 1);
^~~
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
~~~ ^~~
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^~~~~~~~~~~
>> drivers/pci/vpd.c:89:12: warning: data argument not used by format string [-Wformat-extra-args]
tag, off + 1);
^
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
~~~ ^
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
~~~ ^
>> drivers/pci/vpd.c:89:7: warning: variable 'tag' is uninitialized when used here [-Wuninitialized]
tag, off + 1);
^~~
include/linux/pci.h:2465:67: note: expanded from macro 'pci_warn'
#define pci_warn(pdev, fmt, arg...) dev_warn(&(pdev)->dev, fmt, ##arg)
^~~
include/linux/dev_printk.h:114:33: note: expanded from macro 'dev_warn'
_dev_warn(dev, dev_fmt(fmt), ##__VA_ARGS__)
^~~~~~~~~~~
drivers/pci/vpd.c:79:20: note: initialize the variable 'tag' to silence this warning
unsigned char tag;
^
= '\0'
3 warnings generated.
vim +89 drivers/pci/vpd.c
67
68 /**
69 * pci_vpd_size - determine actual size of Vital Product Data
70 * @dev: pci device struct
71 * @old_size: current assumed size, also maximum allowed size
72 */
73 static size_t pci_vpd_size(struct pci_dev *dev, size_t old_size)
74 {
75 size_t off = 0;
76 unsigned char header[1+2]; /* 1 byte tag, 2 bytes length */
77
78 while (off < old_size && pci_read_vpd(dev, off, 1, header) == 1) {
79 unsigned char tag;
80 size_t size;
81
82 if (off == 0 && (header[0] == 0x00 || header[0] == 0xff))
83 goto error;
84
85 if (header[0] & PCI_VPD_LRDT) {
86 /* Large Resource Data Type Tag */
87 if (pci_read_vpd(dev, off + 1, 2, &header[1]) != 2) {
88 pci_warn(dev, "failed VPD read@offset %zu\n",
> 89 tag, off + 1);
90 return 0;
91 }
92 size = pci_vpd_lrdt_size(header);
93 if (off + size > PCI_VPD_MAX_SIZE)
94 goto error;
95
96 off += PCI_VPD_LRDT_TAG_SIZE + size;
97 } else {
98 /* Short Resource Data Type Tag */
99 tag = pci_vpd_srdt_tag(header);
100 size = pci_vpd_srdt_size(header);
101 if (size == 0 || off + size > PCI_VPD_MAX_SIZE)
102 goto error;
103
104 off += PCI_VPD_SRDT_TAG_SIZE + size;
105 if (tag == PCI_VPD_STIN_END) /* End tag descriptor */
106 return off;
107 }
108 }
109 return 0;
110
111 error:
112 pci_info(dev, "invalid VPD tag %#04x at offset %zu%s\n",
113 header[0], off, off == 0 ?
114 "; assume missing optional EEPROM" : "");
115 return 0;
116 }
117
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 28757 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2021-07-30 22:05 UTC | newest]
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2021-07-30 22:04 [pci:wip/bjorn-vpd-v2 5/9] drivers/pci/vpd.c:89:7: warning: format specifies type 'size_t' (aka 'unsigned long') but the argument has type 'unsigned char' kernel test robot
2021-07-30 22:04 ` kernel test robot
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