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@kernel.org>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-kernel@vger.kernel.org
Subject: [PATCH net] net: dsa: motorcomm: Report error when FDB fails to add
Date: Sun, 25 Oct 2026 10:41:11 +0800 [thread overview]
Message-ID: <20261025024114.1955782-1-mmyangfl@gmail.com> (raw)
fdb_add() ignored any errors returned by the hardware (for example,
table is full). Return error for that case.
Fixes: 186623f4aa72 ("net: dsa: yt921x: Add support for Motorcomm YT921x")
Signed-off-by: David Yang <mmyangfl@gmail.com>
---
drivers/net/dsa/motorcomm/chip.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/dsa/motorcomm/chip.c b/drivers/net/dsa/motorcomm/chip.c
index d4fc20c52a58..422b45085e7b 100644
--- a/drivers/net/dsa/motorcomm/chip.c
+++ b/drivers/net/dsa/motorcomm/chip.c
@@ -725,7 +725,13 @@ yt921x_fdb_add(struct yt921x_priv *priv, const unsigned char *addr, u16 vid,
if (res)
return res;
- return yt921x_fdb_wait(priv, &val);
+ res = yt921x_fdb_wait(priv, &val);
+ if (res)
+ return res;
+ if (val & YT921X_FDB_RESULT_NOTFOUND)
+ return -ENOSPC;
+
+ return 0;
}
static int
--
2.53.0
next reply other threads:[~2026-10-25 2:41 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-25 2:41 David Yang [this message]
2026-10-25 2:46 ` netdev-bot+sinfo
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