[PATCH v6 1/8] scsi: libsas: introduce sas address comparison helpers

From: Jason Yan <yanaijie@huawei.com>
To: <martin.petersen@oracle.com>, <jejb@linux.ibm.com>
Cc: <linux-scsi@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<hare@suse.com>, <hch@lst.de>, <bvanassche@acm.org>,
	<john.garry@huawei.com>, <jinpu.wang@cloud.ionos.com>,
	<damien.lemoal@opensource.wdc.com>,
	Jason Yan <yanaijie@huawei.com>
Subject: [PATCH v6 1/8] scsi: libsas: introduce sas address comparison helpers
Date: Wed, 28 Sep 2022 15:01:23 +0800	[thread overview]
Message-ID: <20220928070130.3657183-2-yanaijie@huawei.com> (raw)
In-Reply-To: <20220928070130.3657183-1-yanaijie@huawei.com>

Sas address comparison is widely used in libsas. However they are all
opencoded and to avoid the line spill over 80 columns, are mostly split
into multi-lines. Introduce some helpers to prepare some refactor.

Signed-off-by: Jason Yan <yanaijie@huawei.com>
Reviewed-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: John Garry <john.garry@huawei.com>
---
 drivers/scsi/libsas/sas_internal.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/scsi/libsas/sas_internal.h b/drivers/scsi/libsas/sas_internal.h
index 8d0ad3abc7b5..3384429b7eb0 100644
--- a/drivers/scsi/libsas/sas_internal.h
+++ b/drivers/scsi/libsas/sas_internal.h
@@ -111,6 +111,23 @@ static inline void sas_smp_host_handler(struct bsg_job *job,
 }
 #endif
 
+static inline bool sas_phy_match_dev_addr(struct domain_device *dev,
+					 struct ex_phy *phy)
+{
+	return SAS_ADDR(dev->sas_addr) == SAS_ADDR(phy->attached_sas_addr);
+}
+
+static inline bool sas_phy_match_port_addr(struct asd_sas_port *port,
+					   struct ex_phy *phy)
+{
+	return SAS_ADDR(port->sas_addr) == SAS_ADDR(phy->attached_sas_addr);
+}
+
+static inline bool sas_phy_addr_match(struct ex_phy *p1, struct ex_phy *p2)
+{
+	return  SAS_ADDR(p1->attached_sas_addr) == SAS_ADDR(p2->attached_sas_addr);
+}
+
 static inline void sas_fail_probe(struct domain_device *dev, const char *func, int err)
 {
 	pr_warn("%s: for %s device %016llx returned %d\n",
-- 
2.31.1

