diff options
| author | Tyrel Datwyler <[email protected]> | 2017-09-28 20:19:20 -0400 |
|---|---|---|
| committer | Michael Ellerman <[email protected]> | 2017-11-06 16:48:11 +1100 |
| commit | b8f89fea599d91e674497aad572613eb63181f31 (patch) | |
| tree | 14af66ddfd2c02e5aa4163d6e0738a8d5d735204 /arch/powerpc/include/asm/pci-bridge.h | |
| parent | 30b49ec798f0984b905fd94d1957d62530f08578 (diff) | |
powerpc/pseries/vio: Dispose of virq mapping on vdevice unregister
When a vdevice is DLPAR removed from the system the vio subsystem
doesn't bother unmapping the virq from the irq_domain. As a result we
have a virq mapped to a hardware irq that is no longer valid for the
irq_domain. A side effect is that we are left with /proc/irq/<irq#>
affinity entries, and attempts to modify the smp_affinity of the irq
will fail.
In the following observed example the kernel log is spammed by
ics_rtas_set_affinity errors after the removal of a VSCSI adapter.
This is a result of irqbalance trying to adjust the affinity every 10
seconds.
rpadlpar_io: slot U8408.E8E.10A7ACV-V5-C25 removed
ics_rtas_set_affinity: ibm,set-xive irq=655385 returns -3
ics_rtas_set_affinity: ibm,set-xive irq=655385 returns -3
This patch fixes the issue by calling irq_dispose_mapping() on the
virq of the viodev on unregister.
Fixes: f2ab6219969f ("powerpc/pseries: Add PFO support to the VIO bus")
Signed-off-by: Tyrel Datwyler <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Diffstat (limited to 'arch/powerpc/include/asm/pci-bridge.h')
0 files changed, 0 insertions, 0 deletions