diff options
| author | Niklas Schnelle <schnelle@linux.ibm.com> | 2020-03-17 12:59:37 +0100 |
|---|---|---|
| committer | Vasily Gorbik <gor@linux.ibm.com> | 2020-03-23 13:41:55 +0100 |
| commit | 969ae01bab2fe938b4c8324836038b5ac1c78fac (patch) | |
| tree | cc7d13c212ed56f892adb745ac72bbd0c9e6778b /arch/s390/include | |
| parent | 9289224040cb120605ffa35263ea27a30105019e (diff) | |
s390/pci: Fix zpci_alloc_domain() over allocation
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>
Diffstat (limited to 'arch/s390/include')
| -rw-r--r-- | arch/s390/include/asm/pci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 73b69a777152..93527655e752 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -26,6 +26,7 @@ int pci_proc_domain(struct pci_bus *); #define ZPCI_NR_DMA_SPACES 1 #define ZPCI_NR_DEVICES CONFIG_PCI_NR_FUNCTIONS +#define ZPCI_DOMAIN_BITMAP_SIZE (1 << 16) /* PCI Function Controls */ #define ZPCI_FC_FN_ENABLED 0x80 |