linux-kernel - [PATCH 3/4] scsi: libsas: Export sas_phy

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Message-ID: <1634041588-74824-4-git-send-email-john.garry@huawei.com>
Date:   Tue, 12 Oct 2021 20:26:27 +0800
From:   John Garry <john.garry@...wei.com>
To:     <jejb@...ux.ibm.com>, <martin.petersen@...cle.com>
CC:     <yanaijie@...wei.com>, <linux-scsi@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linuxarm@...wei.com>,
        Luo Jiaxing <luojiaxing@...wei.com>,
        John Garry <john.garry@...wei.com>
Subject: [PATCH 3/4] scsi: libsas: Export sas_phy_enable()

From: Luo Jiaxing <luojiaxing@...wei.com>

Export sas_phy_enable(), so LLDDs can directly use it to control
remote phys.

We already do this for companion function sas_phy_reset().

Signed-off-by: Luo Jiaxing <luojiaxing@...wei.com>
Signed-off-by: John Garry <john.garry@...wei.com>
---
 drivers/scsi/libsas/sas_init.c | 3 ++-
 include/scsi/libsas.h          | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c
index 37cc92837fdf..b640e09af6a4 100644
--- a/drivers/scsi/libsas/sas_init.c
+++ b/drivers/scsi/libsas/sas_init.c
@@ -254,7 +254,7 @@ static int transport_sas_phy_reset(struct sas_phy *phy, int hard_reset)
 	}
 }
 
-static int sas_phy_enable(struct sas_phy *phy, int enable)
+int sas_phy_enable(struct sas_phy *phy, int enable)
 {
 	int ret;
 	enum phy_func cmd;
@@ -286,6 +286,7 @@ static int sas_phy_enable(struct sas_phy *phy, int enable)
 	}
 	return ret;
 }
+EXPORT_SYMBOL_GPL(sas_phy_enable);
 
 int sas_phy_reset(struct sas_phy *phy, int hard_reset)
 {
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index 6fe125a71b60..79e4903bd414 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -664,6 +664,7 @@ extern void sas_suspend_ha(struct sas_ha_struct *sas_ha);
 
 int sas_set_phy_speed(struct sas_phy *phy, struct sas_phy_linkrates *rates);
 int sas_phy_reset(struct sas_phy *phy, int hard_reset);
+int sas_phy_enable(struct sas_phy *phy, int enable);
 extern int sas_queuecommand(struct Scsi_Host *, struct scsi_cmnd *);
 extern int sas_target_alloc(struct scsi_target *);
 extern int sas_slave_configure(struct scsi_device *);
-- 
2.26.2