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erofs-linux/kernel/irq
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Thomas Gleixner e982ad82bd genirq/msi: Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when no domain is present 
On architectures such as s390 that do not use irq domains for MSI,
returning 0 as the maximum MSI index is a bit counter-productive,
as it indicates that no MSI can be allocated. Bad idea.

Instead, return the maximum we're willing to support in the MSI
backing store (MSI_XA_DOMAIN_SIZE), and let the arch code do its
usual thing.

Thanks to Matthew Rosato for fixing the fix.

Reported-by: Guenter Roeck <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
[maz: commit message]
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/87fsdgzpqs.ffs@tglx
2022-12-16 14:04:04 +00:00
..
affinity.c
Merge tag 'irqchip-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core
2022-05-20 18:48:54 +02:00
autoprobe.c
…
chip.c
genirq/irqdomain: Rename irq_domain::dev to irq_domain:: Pm_dev
2022-12-05 19:20:58 +01:00
cpuhotplug.c
sched/isolation: Use single feature type while referring to housekeeping cpumask
2022-02-16 15:57:55 +01:00
debug.h
…
debugfs.c
genirq: Return a const cpumask from irq_data_get_affinity_mask
2022-07-07 09:38:04 +01:00
devres.c
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dummychip.c
…
generic-chip.c
genirq/generic_chip: Export irq_unmap_generic_chip
2022-07-20 12:05:55 +01:00
handle.c
…
internals.h
genirq/irqdesc: Don't try to remove non-existing sysfs files
2022-11-30 14:52:11 +01:00
ipi.c
genirq: Return a const cpumask from irq_data_get_affinity_mask
2022-07-07 09:38:04 +01:00
irq_sim.c
genirq/irq_sim: Make the irq_work always run in hard irq context
2022-05-14 17:48:27 +02:00
irqdesc.c
genirq/irqdesc: Don't try to remove non-existing sysfs files
2022-11-30 14:52:11 +01:00
irqdomain.c
irqdomain: Use hwirq_max instead of revmap_size for NOMAP domains
2022-07-19 14:51:56 +01:00
Kconfig
genirq: Get rid of GENERIC_MSI_IRQ_DOMAIN
2022-11-17 15:15:20 +01:00
Makefile
…
manage.c
genirq: Remove unused argument force of irq_set_affinity_deactivated()
2022-11-17 14:00:55 +01:00
matrix.c
genirq/matrix: Remove redundant assignment to variable 'end'
2022-04-25 15:02:57 +02:00
migration.c
…
msi.c
genirq/msi: Return MSI_XA_DOMAIN_SIZE as the maximum MSI index when no domain is present
2022-12-16 14:04:04 +00:00
pm.c
genirq/PM: Unexport {suspend,resume}_device_irqs()
2022-06-13 12:27:37 +02:00
proc.c
proc: remove PDE_DATA() completely
2022-01-22 08:33:37 +02:00
resend.c
…
settings.h
…
spurious.c
…
timings.c
…