s390/pci: Rework __zpci_event_availability() to remove conditional locking

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Clang's compiler based static context analysis does not work with locks
that are conditionally taken like in __zpci_event_availability():

arch/s390/pci/pci_event.c:402:10: warning: mutex 'get_zdev_by_fid(ccdf->fid).state_lock'
  is not held on every path through here [-Wthread-safety-analysis]

Given that code which takes locks conditionally can be considered
suboptimal rework __zpci_event_availability() to get rid of this.

Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

...

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Heiko Carstens 2026-08-05 15:36:26 +02:00 • committed by Vasily Gorbik

parent cc459ed00a

commit 9985f26717

1 changed files with 78 additions and 70 deletions

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arch/s390/pci/pci_event.c

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