linux-kernel - [PATCH v2 5/8] scsi: libsas: introduce sas address comparation helpers

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Message-ID: <20220924073455.2186805-6-yanaijie@huawei.com>
Date:   Sat, 24 Sep 2022 15:34:52 +0800
From:   Jason Yan <yanaijie@...wei.com>
To:     <martin.petersen@...cle.com>, <jejb@...ux.ibm.com>
CC:     <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <hare@...e.com>, <hch@....de>, <bvanassche@....org>,
        <john.garry@...wei.com>, <jinpu.wang@...ud.ionos.com>,
        Jason Yan <yanaijie@...wei.com>
Subject: [PATCH v2 5/8] scsi: libsas: introduce sas address comparation helpers

Sas address comparation 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@...wei.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..171ffad514ca 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_same(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