nvme-pci: fix var. type for increasing cq_head

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nvmeq->cq_head is compared with nvmeq->q_depth and changed the value
and cq_phase for handling the next cq db.

but, nvmeq->q_depth's type is u32 and max. value is 0x10000 when
CQP.MSQE is 0xffff and io_queue_depth is 0x10000.

current temp. variable for comparing with nvmeq->q_depth is overflowed
when previous nvmeq->cq_head is 0xffff.

in this case, nvmeq->cq_phase is not updated.
so, fix data type for temp. variable to u32.

Signed-off-by: JK Kim <jongkang.kim2@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>

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JK Kim 2021-06-17 15:02:17 +09:00 • committed by Christoph Hellwig

parent 522af60cb2

commit a0aac973a2

1 changed files with 1 additions and 1 deletions

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drivers/nvme/host/pci.c

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