From 1008f5776fe5c398e1202c93b835943b04de3ec6 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Mon, 22 Jan 2024 18:22:05 -0600 Subject: scsi: sd: Use separate buf for START_STOP in sd_spinup_disk() We currently reuse the cmd buffer for the TUR and START_STOP commands which requires us to reset the buffer when retrying. This has us use separate buffers for the 2 commands so we can make them const and I think it makes it easier to handle for retries but does not add too much extra to the stack use. Signed-off-by: Mike Christie Link: https://lore.kernel.org/r/20240123002220.129141-5-michael.christie@oracle.com Reviewed-by: Christoph Hellwig Reviewed-by: John Garry Reviewed-by: Martin Wilck Acked-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/sd.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 0833b3e6aa6e..3d85913d373c 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2318,14 +2318,16 @@ sd_spinup_disk(struct scsi_disk *sdkp) * Issue command to spin up drive when not ready */ if (!spintime) { + /* Return immediately and start spin cycle */ + const u8 start_cmd[10] = { + [0] = START_STOP, + [1] = 1, + [4] = sdkp->device->start_stop_pwr_cond ? + 0x11 : 1, + }; + sd_printk(KERN_NOTICE, sdkp, "Spinning up disk..."); - cmd[0] = START_STOP; - cmd[1] = 1; /* Return immediately */ - memset((void *) &cmd[2], 0, 8); - cmd[4] = 1; /* Start spin cycle */ - if (sdkp->device->start_stop_pwr_cond) - cmd[4] |= 1 << 4; - scsi_execute_cmd(sdkp->device, cmd, + scsi_execute_cmd(sdkp->device, start_cmd, REQ_OP_DRV_IN, NULL, 0, SD_TIMEOUT, sdkp->max_retries, &exec_args); -- cgit