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| author |   Thomas Gleixner <tglx@linutronix.de> | 2021-07-29 23:51:44 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2021-08-10 10:59:20 +0200 |
| commit | 361fd37397f77578735907341579397d5bed0a2d (patch) | |
| tree | 80cd301ae579f8afb34daad06971230f5672481f /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | PCI/MSI: Enforce MSI[X] entry updates to be visible (diff) | |
| download | wireguard-linux-361fd37397f77578735907341579397d5bed0a2d.tar.xz wireguard-linux-361fd37397f77578735907341579397d5bed0a2d.zip | |
PCI/MSI: Do not set invalid bits in MSI mask
msi_mask_irq() takes a mask and a flags argument. The mask argument is used
to mask out bits from the cached mask and the flags argument to set bits.
Some places invoke it with a flags argument which sets bits which are not
used by the device, i.e. when the device supports up to 8 vectors a full
unmask in some places sets the mask to 0xFFFFFF00. While devices probably
do not care, it's still bad practice.
Fixes: 7ba1930db02f ("PCI MSI: Unmask MSI if setup failed")
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/20210729222542.568173099@linutronix.de
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions