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    Subject[PATCH 5.10 85/96] PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()
    Date
    From: Thomas Gleixner <tglx@linutronix.de>

    commit d28d4ad2a1aef27458b3383725bb179beb8d015c upstream.

    No point in using the raw write function from shutdown. Preparatory change
    to introduce proper serialization for the msi_desc::masked cache.

    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/20210729222542.674391354@linutronix.de
    Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    ---
    drivers/pci/msi.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    --- a/drivers/pci/msi.c
    +++ b/drivers/pci/msi.c
    @@ -961,7 +961,7 @@ static void pci_msi_shutdown(struct pci_

    /* Return the device with MSI unmasked as initial states */
    mask = msi_mask(desc->msi_attrib.multi_cap);
    - __pci_msi_desc_mask_irq(desc, mask, 0);
    + msi_mask_irq(desc, mask, 0);

    /* Restore dev->irq to its default pin-assertion IRQ */
    dev->irq = desc->msi_attrib.default_irq;

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