* drivers/platform/cznic/turris-omnia-mcu-gpio.c:257 omnia_ctl_cmd_locked() error: uninitialized symbol 'len'.
@ 2024-07-19 18:38 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-07-19 18:38 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: "Marek Behún" <kabel@kernel.org>
CC: Arnd Bergmann <arnd@arndb.de>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 720261cfc7329406a50c2a8536e0039b9dd9a4e5
commit: dfa556e45ae9ecc199e598222debc8f1883a7cce platform: cznic: turris-omnia-mcu: Add support for MCU connected GPIOs
date: 3 weeks ago
:::::: branch date: 18 hours ago
:::::: commit date: 3 weeks ago
config: arc-randconfig-r071-20240719 (https://download.01.org/0day-ci/archive/20240720/202407200203.WwIiHoQj-lkp@intel.com/config)
compiler: arc-elf-gcc (GCC) 13.2.0
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202407200203.WwIiHoQj-lkp@intel.com/
New smatch warnings:
drivers/platform/cznic/turris-omnia-mcu-gpio.c:257 omnia_ctl_cmd_locked() error: uninitialized symbol 'len'.
Old smatch warnings:
internal error: arch/arc/include/asm/bitops.h:137 SQL error #2: near "and": syntax error
internal error: arch/arc/include/asm/bitops.h:137 SQL: 'select * from return_states where and type = 1044 and parameter = -1 and key = '$' limit 1;'
vim +/len +257 drivers/platform/cznic/turris-omnia-mcu-gpio.c
dfa556e45ae9ec Marek Behún 2024-07-01 232
dfa556e45ae9ec Marek Behún 2024-07-01 233 static int omnia_ctl_cmd_locked(struct omnia_mcu *mcu, u8 cmd, u16 val, u16 mask)
dfa556e45ae9ec Marek Behún 2024-07-01 234 {
dfa556e45ae9ec Marek Behún 2024-07-01 235 unsigned int len;
dfa556e45ae9ec Marek Behún 2024-07-01 236 u8 buf[5];
dfa556e45ae9ec Marek Behún 2024-07-01 237
dfa556e45ae9ec Marek Behún 2024-07-01 238 buf[0] = cmd;
dfa556e45ae9ec Marek Behún 2024-07-01 239
dfa556e45ae9ec Marek Behún 2024-07-01 240 switch (cmd) {
dfa556e45ae9ec Marek Behún 2024-07-01 241 case OMNIA_CMD_GENERAL_CONTROL:
dfa556e45ae9ec Marek Behún 2024-07-01 242 buf[1] = val;
dfa556e45ae9ec Marek Behún 2024-07-01 243 buf[2] = mask;
dfa556e45ae9ec Marek Behún 2024-07-01 244 len = 3;
dfa556e45ae9ec Marek Behún 2024-07-01 245 break;
dfa556e45ae9ec Marek Behún 2024-07-01 246
dfa556e45ae9ec Marek Behún 2024-07-01 247 case OMNIA_CMD_EXT_CONTROL:
dfa556e45ae9ec Marek Behún 2024-07-01 248 put_unaligned_le16(val, &buf[1]);
dfa556e45ae9ec Marek Behún 2024-07-01 249 put_unaligned_le16(mask, &buf[3]);
dfa556e45ae9ec Marek Behún 2024-07-01 250 len = 5;
dfa556e45ae9ec Marek Behún 2024-07-01 251 break;
dfa556e45ae9ec Marek Behún 2024-07-01 252
dfa556e45ae9ec Marek Behún 2024-07-01 253 default:
dfa556e45ae9ec Marek Behún 2024-07-01 254 BUG();
dfa556e45ae9ec Marek Behún 2024-07-01 255 }
dfa556e45ae9ec Marek Behún 2024-07-01 256
dfa556e45ae9ec Marek Behún 2024-07-01 @257 return omnia_cmd_write(mcu->client, buf, len);
dfa556e45ae9ec Marek Behún 2024-07-01 258 }
dfa556e45ae9ec Marek Behún 2024-07-01 259
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* drivers/platform/cznic/turris-omnia-mcu-gpio.c:257 omnia_ctl_cmd_locked() error: uninitialized symbol 'len'.
@ 2024-10-20 2:57 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-10-20 2:57 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: "Marek Behún" <kabel@kernel.org>
CC: Arnd Bergmann <arnd@arndb.de>
Hi Marek,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 715ca9dd687f89ddaac8ec8ccb3b5e5a30311a99
commit: 74a22fced5a012c57f56d1cf7ea926cc366a2a3a platform: cznic: turris-omnia-mcu: Make poweroff and wakeup code optional
date: 2 months ago
:::::: branch date: 3 hours ago
:::::: commit date: 2 months ago
config: arc-randconfig-r073-20241020 (https://download.01.org/0day-ci/archive/20241020/202410201033.sEvOUguy-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 13.2.0
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202410201033.sEvOUguy-lkp@intel.com/
smatch warnings:
drivers/platform/cznic/turris-omnia-mcu-gpio.c:257 omnia_ctl_cmd_locked() error: uninitialized symbol 'len'.
vim +/len +257 drivers/platform/cznic/turris-omnia-mcu-gpio.c
dfa556e45ae9ec Marek Behún 2024-07-01 232
dfa556e45ae9ec Marek Behún 2024-07-01 233 static int omnia_ctl_cmd_locked(struct omnia_mcu *mcu, u8 cmd, u16 val, u16 mask)
dfa556e45ae9ec Marek Behún 2024-07-01 234 {
dfa556e45ae9ec Marek Behún 2024-07-01 235 unsigned int len;
dfa556e45ae9ec Marek Behún 2024-07-01 236 u8 buf[5];
dfa556e45ae9ec Marek Behún 2024-07-01 237
dfa556e45ae9ec Marek Behún 2024-07-01 238 buf[0] = cmd;
dfa556e45ae9ec Marek Behún 2024-07-01 239
dfa556e45ae9ec Marek Behún 2024-07-01 240 switch (cmd) {
dfa556e45ae9ec Marek Behún 2024-07-01 241 case OMNIA_CMD_GENERAL_CONTROL:
dfa556e45ae9ec Marek Behún 2024-07-01 242 buf[1] = val;
dfa556e45ae9ec Marek Behún 2024-07-01 243 buf[2] = mask;
dfa556e45ae9ec Marek Behún 2024-07-01 244 len = 3;
dfa556e45ae9ec Marek Behún 2024-07-01 245 break;
dfa556e45ae9ec Marek Behún 2024-07-01 246
dfa556e45ae9ec Marek Behún 2024-07-01 247 case OMNIA_CMD_EXT_CONTROL:
dfa556e45ae9ec Marek Behún 2024-07-01 248 put_unaligned_le16(val, &buf[1]);
dfa556e45ae9ec Marek Behún 2024-07-01 249 put_unaligned_le16(mask, &buf[3]);
dfa556e45ae9ec Marek Behún 2024-07-01 250 len = 5;
dfa556e45ae9ec Marek Behún 2024-07-01 251 break;
dfa556e45ae9ec Marek Behún 2024-07-01 252
dfa556e45ae9ec Marek Behún 2024-07-01 253 default:
dfa556e45ae9ec Marek Behún 2024-07-01 254 BUG();
dfa556e45ae9ec Marek Behún 2024-07-01 255 }
dfa556e45ae9ec Marek Behún 2024-07-01 256
dfa556e45ae9ec Marek Behún 2024-07-01 @257 return omnia_cmd_write(mcu->client, buf, len);
dfa556e45ae9ec Marek Behún 2024-07-01 258 }
dfa556e45ae9ec Marek Behún 2024-07-01 259
:::::: The code at line 257 was first introduced by commit
:::::: dfa556e45ae9ecc199e598222debc8f1883a7cce platform: cznic: turris-omnia-mcu: Add support for MCU connected GPIOs
:::::: TO: Marek Behún <kabel@kernel.org>
:::::: CC: Arnd Bergmann <arnd@arndb.de>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
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2024-10-20 2:57 drivers/platform/cznic/turris-omnia-mcu-gpio.c:257 omnia_ctl_cmd_locked() error: uninitialized symbol 'len' kernel test robot
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2024-07-19 18:38 kernel test robot
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