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dmaengine: idxd: fix desc->vector that isn't being updated

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Missing update for desc->vector when the wq vector gets updated. This
causes the desc->vector to always be at 0.

Fixes: da435aedb0 ("dmaengine: idxd: fix array index when int_handles are being used")
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/162628784374.353761.4736602409627820431.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Dave Jiang 2021-07-14 11:38:41 -07:00 committed by Vinod Koul
parent d5c10e0fc8
commit 8ba89a3c79
1 changed files with 1 additions and 2 deletions
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3
drivers/dma/idxd/submit.c
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@ -25,11 +25,10 @@ static struct idxd_desc *__get_desc(struct idxd_wq *wq, int idx, int cpu)
* Descriptor completion vectors are 1...N for MSIX. We will round
* robin through the N vectors.
*/
wq->vec_ptr = (wq->vec_ptr % idxd->num_wq_irqs) + 1;
wq->vec_ptr = desc->vector = (wq->vec_ptr % idxd->num_wq_irqs) + 1;
if (!idxd->int_handles) {
desc->hw->int_handle = wq->vec_ptr;
} else {
desc->vector = wq->vec_ptr;
/*
* int_handles are only for descriptor completion. However for device
* MSIX enumeration, vec 0 is used for misc interrupts. Therefore even