From: Eric Biggers ebiggers@google.com
[ Upstream commit cc770ce34aeeff21991f162f0db1a758ea672727 ]
Fix ufshcd_print_trs() to consider UFSHCD_QUIRK_PRDT_BYTE_GRAN when using utp_transfer_req_desc::prd_table_length, so that it doesn't treat the number of bytes as the number of entries.
Originally from Kiwoong Kim (https://lkml.kernel.org/r/20200218233115.8185-1-kwmad.kim@samsung.com).
Link: https://lore.kernel.org/r/20200826021040.152148-1-ebiggers@kernel.org Fixes: 26f968d7de82 ("scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk") Cc: Alim Akhtar alim.akhtar@samsung.com Cc: Kiwoong Kim kwmad.kim@samsung.com Signed-off-by: Eric Biggers ebiggers@google.com Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/scsi/ufs/ufshcd.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 8bc8e4e62c045..e5f75b2e07e2c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -484,6 +484,9 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt)
prdt_length = le16_to_cpu( lrbp->utr_descriptor_ptr->prd_table_length); + if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) + prdt_length /= sizeof(struct ufshcd_sg_entry); + dev_err(hba->dev, "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", tag, prdt_length,