Sorry for bad message ID threading, but I don't have the original
email from Greg in my email, just a link to it on lore..
I'd suggest perhaps a slightly bigger patch than just adding the memset().
Something like the attached?
Entirely untested, but it would seem to be the cleaner way to go about this. No?
Linus
drivers/scsi/stex.c | 17 +++++++++--------
include/scsi/scsi_cmnd.h | 2 +-
2 files changed, 10 insertions(+), 9 deletions(-)
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index e6420f2127ce..8def242675ef 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -665,16 +665,17 @@ static int stex_queuecommand_lck(struct scsi_cmnd *cmd)
return 0;
case PASSTHRU_CMD:
if (cmd->cmnd[1] == PASSTHRU_GET_DRVVER) {
- struct st_drvver ver;
+ const struct st_drvver ver = {
+ .major = ST_VER_MAJOR,
+ .minor = ST_VER_MINOR,
+ .oem = ST_OEM,
+ .build = ST_BUILD_VER,
+ .signature[0] = PASSTHRU_SIGNATURE,
+ .console_id = host->max_id - 1,
+ .host_no = hba->host->host_no,
+ };
size_t cp_len = sizeof(ver);
- ver.major = ST_VER_MAJOR;
- ver.minor = ST_VER_MINOR;
- ver.oem = ST_OEM;
- ver.build = ST_BUILD_VER;
- ver.signature[0] = PASSTHRU_SIGNATURE;
- ver.console_id = host->max_id - 1;
- ver.host_no = hba->host->host_no;
cp_len = scsi_sg_copy_from_buffer(cmd, &ver, cp_len);
if (sizeof(ver) == cp_len)
cmd->result = DID_OK << 16;
diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h
index bac55decf900..7d3622db38ed 100644
--- a/include/scsi/scsi_cmnd.h
+++ b/include/scsi/scsi_cmnd.h
@@ -201,7 +201,7 @@ static inline unsigned int scsi_get_resid(struct scsi_cmnd *cmd)
for_each_sg(scsi_sglist(cmd), sg, nseg, __i)
static inline int scsi_sg_copy_from_buffer(struct scsi_cmnd *cmd,
- void *buf, int buflen)
+ const void *buf, int buflen)
{
return sg_copy_from_buffer(scsi_sglist(cmd), scsi_sg_count(cmd),
buf, buflen);
