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| author | Thomas Gleixner <tglx@linutronix.de> | 2021-07-29 23:51:51 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-08-10 11:03:29 +0200 |
| commit | 3998527d2e3ee2bfdf710a45b7b90968ff87babc (patch) | |
| tree | b137294e5282449627e9392addb4cbfa556c5aad /drivers/pci/msi.c | |
| parent | Merge branch 'irq/urgent' into irq/core (diff) | |
| download | linux-3998527d2e3ee2bfdf710a45b7b90968ff87babc.tar.xz linux-3998527d2e3ee2bfdf710a45b7b90968ff87babc.zip | |
s390/pci: Do not mask MSI[-X] entries on teardown
The PCI core already ensures that the MSI[-X] state is correct when MSI[-X]
is disabled. For MSI the reset state is all entries unmasked and for MSI-X
all vectors are masked.
S390 masks all MSI entries and masks the already masked MSI-X entries
again. Remove it and let the device in the correct state.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Acked-by: Niklas Schnelle <schnelle@linux.ibm.com>
Link: https://lore.kernel.org/r/20210729222542.939798136@linutronix.de
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index e5e75331b415..95e6ce478c04 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -143,7 +143,7 @@ static inline __attribute_const__ u32 msi_mask(unsigned x) * reliably as devices without an INTx disable bit will then generate a * level IRQ which will never be cleared. */ -void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) +static void __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag) { raw_spinlock_t *lock = &desc->dev->msi_lock; unsigned long flags; @@ -180,7 +180,7 @@ static void __iomem *pci_msix_desc_addr(struct msi_desc *desc) * file. This saves a few milliseconds when initialising devices with lots * of MSI-X interrupts. */ -u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag) +static u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag) { u32 mask_bits = desc->masked; void __iomem *desc_addr; |