Commit 3c85f087 authored by Avri Altman's avatar Avri Altman Committed by Martin K. Petersen
Browse files

scsi: ufs: mcq: Use pointer arithmetic in ufshcd_send_command() 



Make sqe_base_addr the UTRD pointer it is, instead of an opaque void *.

Signed-off-by: default avatarAvri Altman <avri.altman@wdc.com>
Link: https://lore.kernel.org/r/20230329101303.18377-3-avri.altman@wdc.com


Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 4de243c4

drivers/ufs/core/ufshcd.c

+3 −2
Original line number Diff line number Diff line
@@ -2242,10 +2242,11 @@ void ufshcd_send_command(struct ufs_hba *hba, unsigned int task_tag, 


	if (is_mcq_enabled(hba)) {

		int utrd_size = sizeof(struct utp_transfer_req_desc);

		struct utp_transfer_req_desc *src = lrbp->utr_descriptor_ptr;

		struct utp_transfer_req_desc *dest = hwq->sqe_base_addr + hwq->sq_tail_slot;



		spin_lock(&hwq->sq_lock);

		memcpy(hwq->sqe_base_addr + (hwq->sq_tail_slot * utrd_size),

		       lrbp->utr_descriptor_ptr, utrd_size);

		memcpy(dest, src, utrd_size);

		ufshcd_inc_sq_tail(hwq);

		spin_unlock(&hwq->sq_lock);

	} else {

include/ufs/ufshcd.h

+1 −1
Original line number Diff line number Diff line
@@ -1095,7 +1095,7 @@ struct ufs_hw_queue { 
	void __iomem *mcq_cq_head;

	void __iomem *mcq_cq_tail;



	void *sqe_base_addr;

	struct utp_transfer_req_desc *sqe_base_addr;

	dma_addr_t sqe_dma_addr;

	struct cq_entry *cqe_base_addr;

	dma_addr_t cqe_dma_addr;