We currently re-use 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 <michael.christie@xxxxxxxxxx> Reviewed-by: Christoph Hellwig <hch@xxxxxx> --- drivers/scsi/sd.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 245419fe9358..f75e2d7a864c 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -2267,14 +2267,13 @@ 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] = { START_STOP, 1, 0, 0, + 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); -- 2.34.1