s390/pci: Fix zpci_alloc_domain() over allocation

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Until now zpci_alloc_domain() only prevented more than
CONFIG_PCI_NR_FUNCTIONS from being added when using automatic domain
allocation. When explicit UIDs were defined UIDs above
CONFIG_PCI_NR_FUNCTIONS were not counted at all.
When more PCI functions are added this could lead to various errors
including under sized IRQ vectors and similar issues.

Fix this by explicitly tracking the number of allocated domains.

Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

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Niklas Schnelle 2020-03-17 12:59:37 +01:00 • committed by Vasily Gorbik

parent 9289224040

commit 969ae01bab

2 changed files with 19 additions and 16 deletions

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arch/s390/include/asm/pci.h

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34

arch/s390/pci/pci.c

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