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Message-ID: <20240307093733.41222-3-yangxingui@huawei.com>
Date: Thu, 7 Mar 2024 09:37:32 +0000
From: Xingui Yang <yangxingui@...wei.com>
To: <john.g.garry@...cle.com>, <yanaijie@...wei.com>, <jejb@...ux.ibm.com>,
<martin.petersen@...cle.com>, <damien.lemoal@...nsource.wdc.com>
CC: <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxarm@...wei.com>, <prime.zeng@...ilicon.com>,
<chenxiang66@...ilicon.com>, <kangfenglong@...wei.com>
Subject: [PATCH v3 2/3] scsi: libsas: Add a helper sas_get_sas_addr_and_dev_type()
Add a helper to get attached_sas_addr and device type from disc_resp.
Suggested-by: John Garry <john.g.garry@...cle.com>
Signed-off-by: Xingui Yang <yangxingui@...wei.com>
---
drivers/scsi/libsas/sas_expander.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/scsi/libsas/sas_expander.c b/drivers/scsi/libsas/sas_expander.c
index 1eeb69cba8da..d6147616339f 100644
--- a/drivers/scsi/libsas/sas_expander.c
+++ b/drivers/scsi/libsas/sas_expander.c
@@ -1631,6 +1631,16 @@ int sas_discover_root_expander(struct domain_device *dev)
/* ---------- 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)
{
@@ -1684,13 +1694,8 @@ 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;
}
--
2.17.1
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