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| author | Thomas Gleixner <tglx@linutronix.de> | 2021-07-29 23:51:45 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-08-10 10:59:20 +0200 |
| commit | 689e6b5351573c38ccf92a0dd8b3e2c2241e4aff (patch) | |
| tree | 0a91a2e49e921307595e3447a549979dc6deee15 /drivers/pci/msi.c | |
| parent | PCI/MSI: Do not set invalid bits in MSI mask (diff) | |
| download | linux-689e6b5351573c38ccf92a0dd8b3e2c2241e4aff.tar.xz linux-689e6b5351573c38ccf92a0dd8b3e2c2241e4aff.zip | |
PCI/MSI: Correct misleading comments
The comments about preserving the cached state in pci_msi[x]_shutdown() are
misleading as the MSI descriptors are freed right after those functions
return. So there is nothing to restore. Preparatory change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210729222542.621609423@linutronix.de
Diffstat (limited to 'drivers/pci/msi.c')
| -rw-r--r-- | drivers/pci/msi.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c index e27ac6b5b8d5..b3f58074e8d4 100644 --- a/drivers/pci/msi.c +++ b/drivers/pci/msi.c @@ -961,7 +961,6 @@ static void pci_msi_shutdown(struct pci_dev *dev) /* Return the device with MSI unmasked as initial states */ mask = msi_mask(desc->msi_attrib.multi_cap); - /* Keep cached state to be restored */ __pci_msi_desc_mask_irq(desc, mask, 0); /* Restore dev->irq to its default pin-assertion IRQ */ @@ -1047,10 +1046,8 @@ static void pci_msix_shutdown(struct pci_dev *dev) } /* Return the device with MSI-X masked as initial states */ - for_each_pci_msi_entry(entry, dev) { - /* Keep cached states to be restored */ + for_each_pci_msi_entry(entry, dev) __pci_msix_desc_mask_irq(entry, 1); - } pci_msix_clear_and_set_ctrl(dev, PCI_MSIX_FLAGS_ENABLE, 0); pci_intx_for_msi(dev, 1); |