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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-03 14:21:52 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-03 14:21:52 -0700 |
| commit | 3b4b84b2ea9938e44fffa356c7b95f496b4246ab (patch) | |
| tree | ed0478e667174bf7f1e9cf07cc601d1d68852eb0 /kernel/irq/manage.c | |
| parent | 145ff1ec090dce9beb5a9590b5dc288e7bb2e65d (diff) | |
| parent | aa251fc5b936d3ddb4b4c4b36427eb9aa3347c82 (diff) | |
| download | linux-3b4b84b2ea9938e44fffa356c7b95f496b4246ab.tar.gz linux-3b4b84b2ea9938e44fffa356c7b95f496b4246ab.tar.bz2 linux-3b4b84b2ea9938e44fffa356c7b95f496b4246ab.zip | |
Merge tag 'irq-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"Fix a recent IRQ affinities regression, add in a missing debugfs
printout that helps the debugging of IRQ affinity logic bugs, and fix
a memory leak"
* tag 'irq-urgent-2020-08-02' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/debugfs: Add missing irqchip flags
genirq/affinity: Make affinity setting if activated opt-in
irqdomain/treewide: Free firmware node after domain removal
Diffstat (limited to 'kernel/irq/manage.c')
| -rw-r--r-- | kernel/irq/manage.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 2a9fec53e159..48c38e09c673 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -320,12 +320,16 @@ static bool irq_set_affinity_deactivated(struct irq_data *data, struct irq_desc *desc = irq_data_to_desc(data); /* + * Handle irq chips which can handle affinity only in activated + * state correctly + * * If the interrupt is not yet activated, just store the affinity * mask and do not call the chip driver at all. On activation the * driver has to make sure anyway that the interrupt is in a * useable state so startup works. */ - if (!IS_ENABLED(CONFIG_IRQ_DOMAIN_HIERARCHY) || irqd_is_activated(data)) + if (!IS_ENABLED(CONFIG_IRQ_DOMAIN_HIERARCHY) || + irqd_is_activated(data) || !irqd_affinity_on_activate(data)) return false; cpumask_copy(desc->irq_common_data.affinity, mask); |