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Message-Id: <20240429-stmmac-no-ethtool-begin-v1-1-04c629c1c142@redhat.com>
Date: Mon, 29 Apr 2024 16:45:05 -0500
From: Andrew Halaney <ahalaney@...hat.com>
To: Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>, "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Abhishek Chauhan <quic_abchauha@...cinc.com>,
Sagar Cheluvegowda <quic_scheluve@...cinc.com>
Cc: netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Andrew Halaney <ahalaney@...hat.com>
Subject: [PATCH RFC/RFT net-next] net: stmmac: drop the ethtool begin()
callback
This callback doesn't seem to serve much purpose, and prevents things
like:
- systemd.link files from disabling autonegotiation
- carrier detection in NetworkManager
prior to userspace bringing the link up.
The only fear I can think of is accessing unclocked resources due to
pm_runtime, but ethtool ioctls handle that as of commit
f32a21376573 ("ethtool: runtime-resume netdev parent before ethtool ioctl ops")
Signed-off-by: Andrew Halaney <ahalaney@...hat.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 8 --------
1 file changed, 8 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 542e2633a6f5..c2e2723f7c6a 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -438,13 +438,6 @@ static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
}
-static int stmmac_check_if_running(struct net_device *dev)
-{
- if (!netif_running(dev))
- return -EBUSY;
- return 0;
-}
-
static int stmmac_ethtool_get_regs_len(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
@@ -1273,7 +1266,6 @@ static int stmmac_set_tunable(struct net_device *dev,
static const struct ethtool_ops stmmac_ethtool_ops = {
.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
ETHTOOL_COALESCE_MAX_FRAMES,
- .begin = stmmac_check_if_running,
.get_drvinfo = stmmac_ethtool_getdrvinfo,
.get_msglevel = stmmac_ethtool_getmsglevel,
.set_msglevel = stmmac_ethtool_setmsglevel,
---
base-commit: a59668a9397e7245b26e9be85d23f242ff757ae8
change-id: 20240424-stmmac-no-ethtool-begin-f306f2f1f2f4
Best regards,
--
Andrew Halaney <ahalaney@...hat.com>
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