dmaengine: idxd: fix setup sequence for MSIXPERM table

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The MSIX permission table should be programmed BEFORE request_irq()
happens. This prevents any possibility of an interrupt happening before the
MSIX perm table is setup, however slight.

Fixes: 6df0e6c57d ("dmaengine: idxd: clear MSIX permission entry on shutdown")
Sign-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162456741222.1138073.1298447364671237896.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>

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Dave Jiang 2021-06-24 13:43:32 -07:00 • committed by Vinod Koul

parent da435aedb0

commit d5c10e0fc8

1 changed files with 3 additions and 1 deletions

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drivers/dma/idxd/init.c

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