6.11-stable review patch. If anyone has any objections, please let me know.
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From: Avri Altman avri.altman@wdc.com
commit d5130c5a093257aa4542aaded8034ef116a7624a upstream.
Replace manual offset calculations for response_upiu and prd_table in ufshcd_init_lrb() with pre-calculated offsets already stored in the utp_transfer_req_desc structure. The pre-calculated offsets are set differently in ufshcd_host_memory_configure() based on the UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk, ensuring correct alignment and access.
Fixes: 26f968d7de82 ("scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk") Cc: stable@vger.kernel.org Signed-off-by: Avri Altman avri.altman@wdc.com Link: https://lore.kernel.org/r/20240910044543.3812642-1-avri.altman@wdc.com Acked-by: Bart Van Assche bvanassche@acm.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/ufs/core/ufshcd.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/drivers/ufs/core/ufshcd.c +++ b/drivers/ufs/core/ufshcd.c @@ -2920,9 +2920,8 @@ static void ufshcd_init_lrb(struct ufs_h struct utp_transfer_req_desc *utrdlp = hba->utrdl_base_addr; dma_addr_t cmd_desc_element_addr = hba->ucdl_dma_addr + i * ufshcd_get_ucd_size(hba); - u16 response_offset = offsetof(struct utp_transfer_cmd_desc, - response_upiu); - u16 prdt_offset = offsetof(struct utp_transfer_cmd_desc, prd_table); + u16 response_offset = le16_to_cpu(utrdlp[i].response_upiu_offset); + u16 prdt_offset = le16_to_cpu(utrdlp[i].prd_table_offset);
lrb->utr_descriptor_ptr = utrdlp + i; lrb->utrd_dma_addr = hba->utrdl_dma_addr +