netdev - [Patch net-next v12 03/13] net: dsa: move mib->cnt_ptr reset code to ksz

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Date:   Mon, 2 May 2022 21:28:38 +0530
From:   Arun Ramadoss <arun.ramadoss@...rochip.com>
To:     <bpf@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <netdev@...r.kernel.org>
CC:     KP Singh <kpsingh@...nel.org>,
        John Fastabend <john.fastabend@...il.com>,
        Yonghong Song <yhs@...com>, Song Liu <songliubraving@...com>,
        "Martin KaFai Lau" <kafai@...com>,
        Andrii Nakryiko <andrii@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Alexei Starovoitov <ast@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        "Paolo Abeni" <pabeni@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Vladimir Oltean" <olteanv@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        "Vivien Didelot" <vivien.didelot@...il.com>,
        Andrew Lunn <andrew@...n.ch>, <UNGLinuxDriver@...rochip.com>,
        Woojung Huh <woojung.huh@...rochip.com>
Subject: [Patch net-next v12 03/13] net: dsa: move mib->cnt_ptr reset code to ksz_common.c

From: Prasanna Vengateshan <prasanna.vengateshan@...rochip.com>

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>
Signed-off-by: Arun Ramadoss <arun.ramadoss@...rochip.com>
Reviewed-by: Vladimir Oltean <olteanv@...il.com>
Reviewed-by: Florian Fainelli <f.fainelli@...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 f91deea9368e..7c12b3518bab 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -468,8 +468,6 @@ 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 48c90e4cda30..79f290ad73dc 100644
--- a/drivers/net/dsa/microchip/ksz9477.c
+++ b/drivers/net/dsa/microchip/ksz9477.c
@@ -316,9 +316,6 @@ 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 10f127b09e58..235842e01e13 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -242,8 +242,14 @@ 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);
 
-- 
2.33.0