sugar/linux
1
0
Fork 0
Code Activity

scsi: ufs: core: Do not clear driver-private command data

Browse Source 
Tell the SCSI core to skip the memset() call that clears driver-private
data because __ufshcd_setup_cmd() performs all necessary initialization.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://patch.msgid.link/20251031204029.2883185-23-bvanassche@acm.org
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Bart Van Assche
2025-10-31 13:39:30 -07:00
committed by Martin K. Petersen
parent 1d0af94ffb
commit e5f9cc2af9
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/ufs/core/ufshcd.c
View File

@@ -2996,6 +2996,15 @@ static void ufshcd_map_queues(struct Scsi_Host *shost)
} }
} }
/*
* The only purpose of this function is to make the SCSI core skip the memset()
* call for the private command data.
*/
static int ufshcd_init_cmd_priv(struct Scsi_Host *host, struct scsi_cmnd *cmd)
{
return 0;
}
/** /**
* ufshcd_queuecommand - main entry point for SCSI requests * ufshcd_queuecommand - main entry point for SCSI requests
* @host: SCSI host pointer * @host: SCSI host pointer
@@ -9182,6 +9191,7 @@ static const struct scsi_host_template ufshcd_driver_template = {
.name = UFSHCD, .name = UFSHCD,
.proc_name = UFSHCD, .proc_name = UFSHCD,
.map_queues = ufshcd_map_queues, .map_queues = ufshcd_map_queues,
.init_cmd_priv = ufshcd_init_cmd_priv,
.queuecommand = ufshcd_queuecommand, .queuecommand = ufshcd_queuecommand,
.nr_reserved_cmds = UFSHCD_NUM_RESERVED, .nr_reserved_cmds = UFSHCD_NUM_RESERVED,
.mq_poll = ufshcd_poll, .mq_poll = ufshcd_poll,