From: David Yang <mmyangfl@gmail.com>
To: netdev@vger.kernel.org
Cc: David Yang <mmyangfl@gmail.com>, Andrew Lunn <andrew@lunn.ch>,
Vladimir Oltean <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH net-next v2 2/3] net: dsa: yt921x: Return early for failed MIB read
Date: Tue, 24 Feb 2026 19:24:06 +0800 [thread overview]
Message-ID: <20260224112411.1561917-3-mmyangfl@gmail.com> (raw)
In-Reply-To: <20260224112411.1561917-1-mmyangfl@gmail.com>
This patch is a prerequisite for another patch. It does not change the
behavior on the success path.
Signed-off-by: David Yang <mmyangfl@gmail.com>
---
drivers/net/dsa/yt921x.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/drivers/net/dsa/yt921x.c b/drivers/net/dsa/yt921x.c
index 77864dcbb6c5..c72a74ed29cf 100644
--- a/drivers/net/dsa/yt921x.c
+++ b/drivers/net/dsa/yt921x.c
@@ -717,6 +717,11 @@ static int yt921x_read_mib(struct yt921x_priv *priv, int port)
WRITE_ONCE(*valp, val);
}
+ if (res) {
+ print_port_err(dev, port, res, "read stats for");
+ return res;
+ }
+
pp->rx_frames = mib->rx_64byte + mib->rx_65_127byte +
mib->rx_128_255byte + mib->rx_256_511byte +
mib->rx_512_1023byte + mib->rx_1024_1518byte +
@@ -726,9 +731,7 @@ static int yt921x_read_mib(struct yt921x_priv *priv, int port)
mib->tx_512_1023byte + mib->tx_1024_1518byte +
mib->tx_jumbo;
- if (res)
- print_port_err(dev, port, res, "read stats for");
- return res;
+ return 0;
}
static void yt921x_poll_mib(struct work_struct *work)
--
2.51.0
next prev parent reply other threads:[~2026-02-24 11:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-24 11:24 [PATCH net-next v2 0/3] net: dsa: yt921x: Use u64_stats_t for MIB stats David Yang
2026-02-24 11:24 ` [PATCH net-next v2 1/3] net: dsa: yt921x: Refactor port error message David Yang
2026-02-24 13:35 ` Andrew Lunn
2026-02-24 11:24 ` David Yang [this message]
2026-02-24 11:24 ` [PATCH net-next v2 3/3] net: dsa: yt921x: Use u64_stats_t for MIB stats David Yang
2026-02-25 0:41 ` Jakub Kicinski
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