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scsi: libsas: Add a helper sas_get_sas_addr_and_dev_type() 

commit a57345279f upstream.

Add a helper to get attached_sas_addr and device type from disc_resp.

Suggested-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Xingui Yang <yangxingui@huawei.com>
Link: https://lore.kernel.org/r/20240307141413.48049-2-yangxingui@huawei.com
Reviewed-by: John Garry <john.g.garry@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Xingui Yang 2024-03-07 14:14:12 +00:00 committed by Greg Kroah-Hartman
parent 47b9d0650a
commit 744537f5ea
1 changed files with 12 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
drivers/scsi/libsas/sas_expander.c
View File

@ -1621,6 +1621,16 @@ out_err:
/* ---------- Domain revalidation ---------- */
static void sas_get_sas_addr_and_dev_type(struct smp_disc_resp *disc_resp,
u8 *sas_addr,
enum sas_device_type *type)
{
memcpy(sas_addr, disc_resp->disc.attached_sas_addr, SAS_ADDR_SIZE);
*type = to_dev_type(&disc_resp->disc);
if (*type == SAS_PHY_UNUSED)
memset(sas_addr, 0, SAS_ADDR_SIZE);
}
static int sas_get_phy_discover(struct domain_device *dev,
int phy_id, struct smp_disc_resp *disc_resp)
{
@ -1674,13 +1684,8 @@ int sas_get_phy_attached_dev(struct domain_device *dev, int phy_id,
return -ENOMEM;
res = sas_get_phy_discover(dev, phy_id, disc_resp);
if (res == 0) {
memcpy(sas_addr, disc_resp->disc.attached_sas_addr,
SAS_ADDR_SIZE);
*type = to_dev_type(&disc_resp->disc);
if (*type == 0)
memset(sas_addr, 0, SAS_ADDR_SIZE);
}
if (res == 0)
sas_get_sas_addr_and_dev_type(disc_resp, sas_addr, type);
kfree(disc_resp);
return res;
}