Commit cdd44525 authored by Ranjan Kumar's avatar Ranjan Kumar Committed by Martin K. Petersen
Browse files

scsi: mpi3mr: Fix pending I/O counter 



Commit 199510e3 ("scsi: mpi3mr: Update consumer index of reply
queues after every 100 replies") introduced a regression with the
per-reply queue pending I/O counter which was erroneously decremented,
leading to the counter going negative.

Drop the incorrect atomic decrement for the pending I/O counter.

Fixes: 199510e3 ("scsi: mpi3mr: Update consumer index of reply queues after every 100 replies")
Cc: stable@vger.kernel.org
Co-developed-by: default avatarSathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: default avatarSathya Prakash <sathya.prakash@broadcom.com>
Signed-off-by: default avatarRanjan Kumar <ranjan.kumar@broadcom.com>
Link: https://lore.kernel.org/r/20250411111419.135485-2-ranjan.kumar@broadcom.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 4c324085

drivers/scsi/mpi3mr/mpi3mr_fw.c

+1 −1
Original line number Diff line number Diff line
@@ -565,7 +565,7 @@ int mpi3mr_process_op_reply_q(struct mpi3mr_ioc *mrioc, 
		WRITE_ONCE(op_req_q->ci, le16_to_cpu(reply_desc->request_queue_ci));

		mpi3mr_process_op_reply_desc(mrioc, reply_desc, &reply_dma,

		    reply_qidx);

		atomic_dec(&op_reply_q->pend_ios);



		if (reply_dma)

			mpi3mr_repost_reply_buf(mrioc, reply_dma);

		num_op_reply++;