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| author | Samuel Holland <[email protected]> | 2022-07-01 20:00:56 +0000 |
|---|---|---|
| committer | Marc Zyngier <[email protected]> | 2022-07-07 08:38:04 +0000 |
| commit | aa0813581b8d37bdd91cd40b67ef79ffa45104b2 (patch) | |
| tree | 46ac9b881b3a2ed8a57661b83bb5a408447d83b2 /drivers/acpi/cppc_acpi.c | |
| parent | genirq: Return a const cpumask from irq_data_get_affinity_mask (diff) | |
| download | kernel-aa0813581b8d37bdd91cd40b67ef79ffa45104b2.tar.gz kernel-aa0813581b8d37bdd91cd40b67ef79ffa45104b2.zip | |
genirq: Provide an IRQ affinity mask in non-SMP configs
IRQ affinity masks are not allocated in uniprocessor configurations.
This requires special case non-SMP code in drivers for irqchips which
have per-CPU enable or mask registers.
Since IRQ affinity is always the same in a uniprocessor configuration,
we can provide a correct affinity mask without allocating one per IRQ.
By returning a real cpumask from irq_data_get_affinity_mask even when
SMP is disabled, irqchip drivers which iterate over that mask will
automatically do the right thing.
Signed-off-by: Samuel Holland <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
0 files changed, 0 insertions, 0 deletions