Re: [PATCH v2 3/6] ata: libata-scsi: Remove redundant sense_buffer memsets

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On 6/25/24 00:12, Igor Pylypiv wrote:
SCSI layer clears sense_buffer in scsi_queue_rq() so there is no need for
libata to clear it again.

Signed-off-by: Igor Pylypiv <ipylypiv@xxxxxxxxxx>
---
  drivers/ata/libata-scsi.c | 4 ----
  1 file changed, 4 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 26b1263f5c7c..1aeab6e1c8b3 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -929,8 +929,6 @@ static void ata_gen_passthru_sense(struct ata_queued_cmd *qc)
  	unsigned char *sb = cmd->sense_buffer;
  	u8 sense_key, asc, ascq;
- memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
-
  	/*
  	 * Use ata_to_sense_error() to map status register bits
  	 * onto sense key, asc & ascq.
@@ -968,8 +966,6 @@ static void ata_gen_ata_sense(struct ata_queued_cmd *qc)
  	u64 block;
  	u8 sense_key, asc, ascq;
- memset(sb, 0, SCSI_SENSE_BUFFERSIZE);
-
  	if (ata_dev_disabled(dev)) {
  		/* Device disabled after error recovery */
  		/* LOGICAL UNIT NOT READY, HARD RESET REQUIRED */

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                  Kernel Storage Architect
hare@xxxxxxx                                +49 911 74053 688
SUSE Software Solutions GmbH, Frankenstr. 146, 90461 Nürnberg
HRB 36809 (AG Nürnberg), GF: I. Totev, A. McDonald, W. Knoblich





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