* [linux-next:master 5090/5337] drivers//base/devcon.c:180:9: warning: array subscript is below array bounds
@ 2019-12-26 6:22 ` kbuild test robot
0 siblings, 0 replies; 2+ messages in thread
From: kbuild test robot @ 2019-12-26 6:22 UTC (permalink / raw)
To: Oleksandr Natalenko
Cc: kbuild-all, Andrew Morton, Linux Memory Management List
[-- Attachment #1: Type: text/plain, Size: 3368 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 7ddd09fc4b745fb1d8942f95389583e08412e0cd
commit: 27fc2e84ab6df89e3c8f333701055af6704634c5 [5090/5337] init/Kconfig: enable -O3 for all arches
config: i386-randconfig-f001-20191226 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
git checkout 27fc2e84ab6df89e3c8f333701055af6704634c5
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
All warnings (new ones prefixed by >>):
drivers//base/devcon.c: In function 'device_connection_find':
>> drivers//base/devcon.c:180:9: warning: array subscript is below array bounds [-Warray-bounds]
dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers//base/devcon.c:180:9: warning: array subscript is below array bounds [-Warray-bounds]
dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +180 drivers//base/devcon.c
80e04837a40f6f Heikki Krogerus 2019-02-13 169
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 170 /* This tries to find the device from the most common bus types by name. */
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 171 static void *generic_match(struct device_connection *con, int ep, void *data)
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 172 {
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 173 struct bus_type *bus;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 174 struct device *dev;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 175
80e04837a40f6f Heikki Krogerus 2019-02-13 176 if (con->fwnode)
80e04837a40f6f Heikki Krogerus 2019-02-13 177 return device_connection_fwnode_match(con);
80e04837a40f6f Heikki Krogerus 2019-02-13 178
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 179 for (bus = generic_match_buses[0]; bus; bus++) {
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 @180 dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 181 if (dev)
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 182 return dev;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 183 }
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 184
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 185 /*
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 186 * We only get called if a connection was found, tell the caller to
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 187 * wait for the other device to show up.
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 188 */
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 189 return ERR_PTR(-EPROBE_DEFER);
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 190 }
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 191
:::::: The code at line 180 was first introduced by commit
:::::: f2d9b66d84f3ff5ea3aff111e6a403e04fa8bf37 drivers: base: Unified device connection lookup
:::::: TO: Heikki Krogerus <heikki.krogerus@linux.intel.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [linux-next:master 5090/5337] drivers//base/devcon.c:180:9: warning: array subscript is below array bounds
@ 2019-12-26 6:22 ` kbuild test robot
0 siblings, 0 replies; 2+ messages in thread
From: kbuild test robot @ 2019-12-26 6:22 UTC (permalink / raw)
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 3430 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 7ddd09fc4b745fb1d8942f95389583e08412e0cd
commit: 27fc2e84ab6df89e3c8f333701055af6704634c5 [5090/5337] init/Kconfig: enable -O3 for all arches
config: i386-randconfig-f001-20191226 (attached as .config)
compiler: gcc-7 (Debian 7.5.0-3) 7.5.0
reproduce:
git checkout 27fc2e84ab6df89e3c8f333701055af6704634c5
# save the attached .config to linux build tree
make ARCH=i386
If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
All warnings (new ones prefixed by >>):
drivers//base/devcon.c: In function 'device_connection_find':
>> drivers//base/devcon.c:180:9: warning: array subscript is below array bounds [-Warray-bounds]
dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers//base/devcon.c:180:9: warning: array subscript is below array bounds [-Warray-bounds]
dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +180 drivers//base/devcon.c
80e04837a40f6f Heikki Krogerus 2019-02-13 169
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 170 /* This tries to find the device from the most common bus types by name. */
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 171 static void *generic_match(struct device_connection *con, int ep, void *data)
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 172 {
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 173 struct bus_type *bus;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 174 struct device *dev;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 175
80e04837a40f6f Heikki Krogerus 2019-02-13 176 if (con->fwnode)
80e04837a40f6f Heikki Krogerus 2019-02-13 177 return device_connection_fwnode_match(con);
80e04837a40f6f Heikki Krogerus 2019-02-13 178
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 179 for (bus = generic_match_buses[0]; bus; bus++) {
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 @180 dev = bus_find_device_by_name(bus, NULL, con->endpoint[ep]);
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 181 if (dev)
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 182 return dev;
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 183 }
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 184
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 185 /*
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 186 * We only get called if a connection was found, tell the caller to
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 187 * wait for the other device to show up.
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 188 */
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 189 return ERR_PTR(-EPROBE_DEFER);
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 190 }
f2d9b66d84f3ff Heikki Krogerus 2018-03-20 191
:::::: The code at line 180 was first introduced by commit
:::::: f2d9b66d84f3ff5ea3aff111e6a403e04fa8bf37 drivers: base: Unified device connection lookup
:::::: TO: Heikki Krogerus <heikki.krogerus@linux.intel.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation
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2019-12-26 6:22 [linux-next:master 5090/5337] drivers//base/devcon.c:180:9: warning: array subscript is below array bounds kbuild test robot
2019-12-26 6:22 ` kbuild test robot
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