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| author | Hangtian Zhu <hangtian.zhu@oss.qualcomm.com> | 2026-05-19 09:16:26 +0800 |
|---|---|---|
| committer | Jeff Johnson <jeff.johnson@oss.qualcomm.com> | 2026-06-30 14:20:20 -0700 |
| commit | 25e638447e329f08febae2b64c7f85b3bb95e998 (patch) | |
| tree | c543d1ad036b2d9167a723e16d83ca556c50ee7e | |
| parent | dc59e4fea9d83f03bad6bddf3fa2e52491777482 (diff) | |
| download | linux-stable-25e638447e329f08febae2b64c7f85b3bb95e998.tar.gz linux-stable-25e638447e329f08febae2b64c7f85b3bb95e998.zip | |
genirq: export irq_can_set_affinity() for module drivers
Export irq_can_set_affinity() for loadable drivers that need a runtime
check for IRQ affinity capability.
In hierarchical IRQ setups where the effective irqchip path lacks
.irq_set_affinity(), drivers may need to switch to a fallback policy.
Without this export, module drivers cannot use the core helper and have
to open-code equivalent checks.
Signed-off-by: Hangtian Zhu <hangtian.zhu@oss.qualcomm.com>
Acked-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260519011627.713068-2-hangtian.zhu@oss.qualcomm.com
Signed-off-by: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
| -rw-r--r-- | kernel/irq/manage.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 7eb07e3bdb4c..f73fda08417a 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -171,6 +171,7 @@ int irq_can_set_affinity(unsigned int irq) { return __irq_can_set_affinity(irq_to_desc(irq)); } +EXPORT_SYMBOL_GPL(irq_can_set_affinity); /** * irq_can_set_affinity_usr - Check if affinity of a irq can be set from user space |