scsi: ufs: make sure all interrupts are processed

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As multiple requests are submitted to the ufs host controller in
parallel there could be instances where the command completion interrupt
arrives later for a request that is already processed earlier as the
corresponding doorbell was cleared when handling the previous
interrupt. Read the interrupt status in a loop after processing the
received interrupt to catch such interrupts and handle it.

Signed-off-by: Venkat Gopalakrishnan <venkatg@codeaurora.org>
Signed-off-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Subhash Jadavani <subhashj@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Venkat Gopalakrishnan 2018-05-03 16:37:20 +05:30 • committed by Martin K. Petersen

parent 69a6fff068

commit 7f6ba4f12e

1 changed files with 19 additions and 8 deletions

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drivers/scsi/ufs/ufshcd.c

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