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Message-ID: <20231226002255.5730-6-sashal@kernel.org> Date: Mon, 25 Dec 2023 19:21:59 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Vineeth Vijayan <vneethv@...ux.ibm.com>, Peter Oberparleiter <oberpar@...ux.ibm.com>, Alexander Gordeev <agordeev@...ux.ibm.com>, Sasha Levin <sashal@...nel.org>, hca@...ux.ibm.com, gor@...ux.ibm.com, linux-s390@...r.kernel.org Subject: [PATCH AUTOSEL 6.1 06/24] s390/scm: fix virtual vs physical address confusion From: Vineeth Vijayan <vneethv@...ux.ibm.com> [ Upstream commit b1a6a1a77f0666a5a6dc0893ab6ec8fcae46f24c ] Fix virtual vs physical address confusion (which currently are the same). Signed-off-by: Vineeth Vijayan <vneethv@...ux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@...ux.ibm.com> Acked-by: Alexander Gordeev <agordeev@...ux.ibm.com> Signed-off-by: Alexander Gordeev <agordeev@...ux.ibm.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/s390/block/scm_blk.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c index 0c1df1d5f1aca..a165b1a59fde5 100644 --- a/drivers/s390/block/scm_blk.c +++ b/drivers/s390/block/scm_blk.c @@ -17,6 +17,7 @@ #include <linux/blk-mq.h> #include <linux/slab.h> #include <linux/list.h> +#include <linux/io.h> #include <asm/eadm.h> #include "scm_blk.h" @@ -130,7 +131,7 @@ static void scm_request_done(struct scm_request *scmrq) for (i = 0; i < nr_requests_per_io && scmrq->request[i]; i++) { msb = &scmrq->aob->msb[i]; - aidaw = msb->data_addr; + aidaw = (u64)phys_to_virt(msb->data_addr); if ((msb->flags & MSB_FLAG_IDA) && aidaw && IS_ALIGNED(aidaw, PAGE_SIZE)) @@ -195,12 +196,12 @@ static int scm_request_prepare(struct scm_request *scmrq) msb->scm_addr = scmdev->address + ((u64) blk_rq_pos(req) << 9); msb->oc = (rq_data_dir(req) == READ) ? MSB_OC_READ : MSB_OC_WRITE; msb->flags |= MSB_FLAG_IDA; - msb->data_addr = (u64) aidaw; + msb->data_addr = (u64)virt_to_phys(aidaw); rq_for_each_segment(bv, req, iter) { WARN_ON(bv.bv_offset); msb->blk_count += bv.bv_len >> 12; - aidaw->data_addr = (u64) page_address(bv.bv_page); + aidaw->data_addr = virt_to_phys(page_address(bv.bv_page)); aidaw++; } -- 2.43.0
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