* drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast from restricted pci_channel_state_t
@ 2023-11-07 20:56 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-11-07 20:56 UTC (permalink / raw)
To: Lukas Wunner; +Cc: oe-kbuild-all, linux-kernel, Bjorn Helgaas
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: be3ca57cfb777ad820c6659d52e60bbdd36bf5ff
commit: 74ff8864cc842be994853095dba6db48e716400a PCI: hotplug: Allow marking devices as disconnected during bind/unbind
date: 9 months ago
config: s390-randconfig-r121-20231106 (https://download.01.org/0day-ci/archive/20231108/202311080353.HZynWnCm-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231108/202311080353.HZynWnCm-lkp@intel.com/reproduce)
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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311080353.HZynWnCm-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/pci/hotplug/pciehp_pci.c: note: in included file:
>> drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast from restricted pci_channel_state_t
>> drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast to restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast to restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast to restricted pci_channel_state_t
vim +325 drivers/pci/hotplug/../pci.h
306
307 /**
308 * pci_dev_set_io_state - Set the new error state if possible.
309 *
310 * @dev: PCI device to set new error_state
311 * @new: the state we want dev to be in
312 *
313 * If the device is experiencing perm_failure, it has to remain in that state.
314 * Any other transition is allowed.
315 *
316 * Returns true if state has been changed to the requested state.
317 */
318 static inline bool pci_dev_set_io_state(struct pci_dev *dev,
319 pci_channel_state_t new)
320 {
321 pci_channel_state_t old;
322
323 switch (new) {
324 case pci_channel_io_perm_failure:
> 325 xchg(&dev->error_state, pci_channel_io_perm_failure);
326 return true;
327 case pci_channel_io_frozen:
328 old = cmpxchg(&dev->error_state, pci_channel_io_normal,
329 pci_channel_io_frozen);
330 return old != pci_channel_io_perm_failure;
331 case pci_channel_io_normal:
332 old = cmpxchg(&dev->error_state, pci_channel_io_frozen,
333 pci_channel_io_normal);
334 return old != pci_channel_io_perm_failure;
335 default:
336 return false;
337 }
338 }
339
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast from restricted pci_channel_state_t
@ 2023-12-03 6:31 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2023-12-03 6:31 UTC (permalink / raw)
To: Lukas Wunner; +Cc: oe-kbuild-all, linux-kernel, Bjorn Helgaas
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 815fb87b753055df2d9e50f6cd80eb10235fe3e9
commit: 74ff8864cc842be994853095dba6db48e716400a PCI: hotplug: Allow marking devices as disconnected during bind/unbind
date: 10 months ago
config: s390-randconfig-r121-20231106 (https://download.01.org/0day-ci/archive/20231203/202312030751.RxiMfTfm-lkp@intel.com/config)
compiler: s390-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231203/202312030751.RxiMfTfm-lkp@intel.com/reproduce)
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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312030751.RxiMfTfm-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/pci/hotplug/pciehp_pci.c: note: in included file (through include/linux/mmzone.h, include/linux/gfp.h, include/linux/xarray.h, ...):
include/linux/page-flags.h:246:46: sparse: sparse: self-comparison always evaluates to false
drivers/pci/hotplug/pciehp_pci.c: note: in included file:
>> drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast from restricted pci_channel_state_t
>> drivers/pci/hotplug/../pci.h:325:17: sparse: sparse: cast to restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:328:23: sparse: sparse: cast to restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast from restricted pci_channel_state_t
drivers/pci/hotplug/../pci.h:332:23: sparse: sparse: cast to restricted pci_channel_state_t
vim +325 drivers/pci/hotplug/../pci.h
306
307 /**
308 * pci_dev_set_io_state - Set the new error state if possible.
309 *
310 * @dev: PCI device to set new error_state
311 * @new: the state we want dev to be in
312 *
313 * If the device is experiencing perm_failure, it has to remain in that state.
314 * Any other transition is allowed.
315 *
316 * Returns true if state has been changed to the requested state.
317 */
318 static inline bool pci_dev_set_io_state(struct pci_dev *dev,
319 pci_channel_state_t new)
320 {
321 pci_channel_state_t old;
322
323 switch (new) {
324 case pci_channel_io_perm_failure:
> 325 xchg(&dev->error_state, pci_channel_io_perm_failure);
326 return true;
327 case pci_channel_io_frozen:
328 old = cmpxchg(&dev->error_state, pci_channel_io_normal,
329 pci_channel_io_frozen);
330 return old != pci_channel_io_perm_failure;
331 case pci_channel_io_normal:
332 old = cmpxchg(&dev->error_state, pci_channel_io_frozen,
333 pci_channel_io_normal);
334 return old != pci_channel_io_perm_failure;
335 default:
336 return false;
337 }
338 }
339
--
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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