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authorLinus Torvalds <torvalds@linux-foundation.org>2021-11-14 10:38:27 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-14 10:38:27 -0800
commitc36e33e2f477052b0f4b1da45af403f98d3f7eb4 (patch)
tree65da95e1954b963dcbf384443147d4d89e2d718d /kernel
parent218cc8b860a255ce7f1a03ff3ec70953c423d27d (diff)
parent979292af5b512c27803316de2cd06970c54251e5 (diff)
Merge tag 'irq-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Thomas Gleixner: "A set of fixes for the interrupt subsystem Core code: - A regression fix for the Open Firmware interrupt mapping code where a interrupt controller property in a node caused a map property in the same node to be ignored. Interrupt chip drivers: - Workaround a limitation in SiFive PLIC interrupt chip which silently ignores an EOI when the interrupt line is masked. - Provide the missing mask/unmask implementation for the CSKY MP interrupt controller. PCI/MSI: - Prevent a use after free when PCI/MSI interrupts are released by destroying the sysfs entries before freeing the memory which is accessed in the sysfs show() function. - Implement a mask quirk for the Nvidia ION AHCI chip which does not advertise masking capability despite implementing it. Even worse the chip comes out of reset with all MSI entries masked, which due to the missing masking capability never get unmasked. - Move the check which prevents accessing the MSI[X] masking for XEN back into the low level accessors. The recent consolidation missed that these accessors can be invoked from places which do not have that check which broke XEN. Move them back to he original place instead of sprinkling tons of these checks all over the code" * tag 'irq-urgent-2021-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: of/irq: Don't ignore interrupt-controller when interrupt-map failed irqchip/sifive-plic: Fixup EOI failed when masked irqchip/csky-mpintc: Fixup mask/unmask implementation PCI/MSI: Destroy sysfs before freeing entries PCI: Add MSI masking quirk for Nvidia ION AHCI PCI/MSI: Deal with devices lying about their MSI mask capability PCI/MSI: Move non-mask check back into low level accessors
Diffstat (limited to 'kernel')
-rw-r--r--kernel/irq/msi.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/irq/msi.c b/kernel/irq/msi.c
index 6a5ecee6e567..7f350ae59c5f 100644
--- a/kernel/irq/msi.c
+++ b/kernel/irq/msi.c
@@ -529,10 +529,10 @@ static bool msi_check_reservation_mode(struct irq_domain *domain,
/*
* Checking the first MSI descriptor is sufficient. MSIX supports
- * masking and MSI does so when the maskbit is set.
+ * masking and MSI does so when the can_mask attribute is set.
*/
desc = first_msi_entry(dev);
- return desc->msi_attrib.is_msix || desc->msi_attrib.maskbit;
+ return desc->msi_attrib.is_msix || desc->msi_attrib.can_mask;
}
int __msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,