linux-kernel - [PATCH v4 net-next 02/10] net: dsa: move mib->cnt_ptr reset code to ksz

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Message-ID: <20211007151200.748944-3-prasanna.vengateshan@microchip.com>
Date:   Thu, 7 Oct 2021 20:41:52 +0530
From:   Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
To:     <andrew@...n.ch>, <netdev@...r.kernel.org>, <olteanv@...il.com>,
        <robh+dt@...nel.org>
CC:     <UNGLinuxDriver@...rochip.com>, <Woojung.Huh@...rochip.com>,
        <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <kuba@...nel.org>,
        <linux-kernel@...r.kernel.org>, <vivien.didelot@...il.com>,
        <f.fainelli@...il.com>, <devicetree@...r.kernel.org>
Subject: [PATCH v4 net-next 02/10] net: dsa: move mib->cnt_ptr reset code to ksz_common.c

mib->cnt_ptr resetting is handled in multiple places as part of
port_init_cnt(). Hence moved mib->cnt_ptr code to ksz common layer
and removed from individual product files.

Signed-off-by: Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>
Reviewed-by: Vladimir Oltean <olteanv@...il.com>
---
 drivers/net/dsa/microchip/ksz8795.c    | 2 --
 drivers/net/dsa/microchip/ksz9477.c    | 3 ---
 drivers/net/dsa/microchip/ksz_common.c | 8 +++++++-
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index c5142f86a3c7..9b194e94383d 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -447,8 +447,6 @@ static void ksz8_port_init_cnt(struct ksz_device *dev, int port)
 					dropped, &mib->counters[mib->cnt_ptr]);
 		++mib->cnt_ptr;
 	}
-	mib->cnt_ptr = 0;
-	memset(mib->counters, 0, dev->mib_cnt * sizeof(u64));
 }
 
 static void ksz8_r_table(struct ksz_device *dev, int table, u16 addr, u64 *data)
diff --git a/drivers/net/dsa/microchip/ksz9477.c b/drivers/net/dsa/microchip/ksz9477.c
index 854e25f43fa7..35b430d531de 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -289,9 +289,6 @@ static void ksz9477_port_init_cnt(struct ksz_device *dev, int port)
 	ksz_write8(dev, REG_SW_MAC_CTRL_6, SW_MIB_COUNTER_FLUSH);
 	ksz_pwrite32(dev, port, REG_PORT_MIB_CTRL_STAT__4, 0);
 	mutex_unlock(&mib->cnt_mutex);
-
-	mib->cnt_ptr = 0;
-	memset(mib->counters, 0, dev->mib_cnt * sizeof(u64));
 }
 
 static enum dsa_tag_protocol ksz9477_get_tag_protocol(struct dsa_switch *ds,
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 1542bfb8b5e5..2b27d7917903 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -103,8 +103,14 @@ void ksz_init_mib_timer(struct ksz_device *dev)
 
 	INIT_DELAYED_WORK(&dev->mib_read, ksz_mib_read_work);
 
-	for (i = 0; i < dev->port_cnt; i++)
+	for (i = 0; i < dev->port_cnt; i++) {
+		struct ksz_port_mib *mib = &dev->ports[i].mib;
+
 		dev->dev_ops->port_init_cnt(dev, i);
+
+		mib->cnt_ptr = 0;
+		memset(mib->counters, 0, dev->mib_cnt * sizeof(u64));
+	}
 }
 EXPORT_SYMBOL_GPL(ksz_init_mib_timer);
 
-- 
2.27.0