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| author | Xu Qiang <xuqiang36@huawei.com> | 2022-07-19 06:36:40 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2022-07-19 14:51:13 +0100 |
| commit | 6f194c99f466147148cc08452718b46664112548 (patch) | |
| tree | 07726676a32558dd001a1356715c49200da45723 /kernel/irq/irqdomain.c | |
| parent | 295171705c9ac98f4626609033f6bab0c2e37ed0 (diff) | |
irqdomain: Report irq number for NOMAP domains
When using a NOMAP domain, __irq_resolve_mapping() doesn't store
the Linux IRQ number at the address optionally provided by the caller.
While this isn't a huge deal (the returned value is guaranteed
to the hwirq that was passed as a parameter), let's honour the letter
of the API by writing the expected value.
Fixes: d22558dd0a6c (“irqdomain: Introduce irq_resolve_mapping()”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
[maz: commit message]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220719063641.56541-2-xuqiang36@huawei.com
Diffstat (limited to 'kernel/irq/irqdomain.c')
| -rw-r--r-- | kernel/irq/irqdomain.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c index d5ce96510549..481abb885d61 100644 --- a/kernel/irq/irqdomain.c +++ b/kernel/irq/irqdomain.c @@ -910,6 +910,8 @@ struct irq_desc *__irq_resolve_mapping(struct irq_domain *domain, data = irq_domain_get_irq_data(domain, hwirq); if (data && data->hwirq == hwirq) desc = irq_data_to_desc(data); + if (irq && desc) + *irq = hwirq; } return desc; |