From: James Smart <[email protected]>

commit 7ac836ebcb1509845fe7d66314f469f8e709da93 upstream.

Some systems are reporting the following log message during driver unload
or system shutdown:

  ics_rtas_set_affinity: No online cpus in the mask

A prior commit introduced the writing of an empty affinity mask in calls to
irq_set_affinity_hint() when disabling interrupts or when there are no
remaining online CPUs to service an eq interrupt. At least some ppc64
systems are checking whether affinity masks are empty or not.

Do not call irq_set_affinity_hint() with an empty CPU mask.

Fixes: dcaa21367938 ("scsi: lpfc: Change default IRQ model on AMD 
architectures")
Link: https://lore.kernel.org/r/[email protected]
Cc: <[email protected]> # v5.5+
Co-developed-by: Dick Kennedy <[email protected]>
Signed-off-by: Dick Kennedy <[email protected]>
Signed-off-by: James Smart <[email protected]>
Signed-off-by: Martin K. Petersen <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

---
 drivers/scsi/lpfc/lpfc_init.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -11257,7 +11257,6 @@ lpfc_irq_clear_aff(struct lpfc_hba_eq_hd
 {
        cpumask_clear(&eqhdl->aff_mask);
        irq_clear_status_flags(eqhdl->irq, IRQ_NO_BALANCING);
-       irq_set_affinity_hint(eqhdl->irq, &eqhdl->aff_mask);
 }
 
 /**


Reply via email to