public inbox for netdev@vger.kernel.org
 help / color / mirror / Atom feed
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
To: Andrew Lunn <andrew@lunn.ch>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>,
	linux-arm-kernel@lists.infradead.org,
	linux-stm32@st-md-mailman.stormreply.com, netdev@vger.kernel.org,
	Paolo Abeni <pabeni@redhat.com>
Subject: [PATCH net-next 3/6] net: stmmac: move stmmac_xmit() first entry index code
Date: Fri, 20 Mar 2026 16:47:22 +0000	[thread overview]
Message-ID: <E1w3d0M-0000000DfLv-1C6S@rmk-PC.armlinux.org.uk> (raw)
In-Reply-To: <ab15_JvLGFtUH_3x@shell.armlinux.org.uk>

The handling of the first descriptor index/pointer is split around
the checksum handling which makes no sense. Group this code together.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 3d94f632fca6..d5e28ecf9fb4 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -4735,10 +4735,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Check if VLAN can be inserted by HW */
 	has_vlan = stmmac_vlan_insert(priv, skb, tx_q);
 
-	entry = tx_q->cur_tx;
-	first_entry = entry;
-	WARN_ON(tx_q->tx_skbuff[first_entry]);
-
 	csum_insertion = (skb->ip_summed == CHECKSUM_PARTIAL);
 	/* DWMAC IPs can be synthesized to support tx coe only for a few tx
 	 * queues. In that case, checksum offloading for those queues that don't
@@ -4755,6 +4751,10 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
 		csum_insertion = !csum_insertion;
 	}
 
+	entry = tx_q->cur_tx;
+	first_entry = entry;
+	WARN_ON(tx_q->tx_skbuff[first_entry]);
+
 	desc = stmmac_get_tx_desc(priv, tx_q, entry);
 	first_desc = desc;
 
-- 
2.47.3


  parent reply	other threads:[~2026-03-20 16:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-20 16:46 [PATCH net-next 0/6] net: stmmac: cleanup stmmac_xmit() Russell King (Oracle)
2026-03-20 16:47 ` [PATCH net-next 1/6] net: stmmac: move stmmac_xmit() skb head handling Russell King (Oracle)
2026-03-20 16:47 ` [PATCH net-next 2/6] net: stmmac: move first xmit descriptor SARC and TBS config Russell King (Oracle)
2026-03-20 16:47 ` Russell King (Oracle) [this message]
2026-03-20 16:47 ` [PATCH net-next 4/6] net: stmmac: move stmmac_xmit() initial variable init Russell King (Oracle)
2026-03-20 16:47 ` [PATCH net-next 5/6] net: stmmac: use first_desc for TBS Russell King (Oracle)
2026-03-20 16:47 ` [PATCH net-next 6/6] net: stmmac: elminate tbs_desc in stmmac_xmit() Russell King (Oracle)
2026-03-20 19:44 ` [PATCH net-next 0/6] net: stmmac: cleanup stmmac_xmit() Maxime Chevallier
2026-03-24 11:20 ` patchwork-bot+netdevbpf

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E1w3d0M-0000000DfLv-1C6S@rmk-PC.armlinux.org.uk \
    --to=rmk+kernel@armlinux.org.uk \
    --cc=alexandre.torgue@foss.st.com \
    --cc=andrew+netdev@lunn.ch \
    --cc=andrew@lunn.ch \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.com \
    --cc=kuba@kernel.org \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-stm32@st-md-mailman.stormreply.com \
    --cc=netdev@vger.kernel.org \
    --cc=pabeni@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox