From: arnd@arndb.de (Arnd Bergmann)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH net-next 4/6] net: hip04: Don't free the tx skb when the buffer is not ready for xmit
Date: Wed, 15 Apr 2015 16:19:59 +0200 [thread overview]
Message-ID: <2218546.M1hzu1bzfh@wuerfel> (raw)
In-Reply-To: <1429101008-9464-5-git-send-email-dingtianhong@huawei.com>
On Wednesday 15 April 2015 20:30:06 Ding Tianhong wrote:
> @@ -489,6 +487,8 @@ static int hip04_mac_start_xmit(struct sk_buff *skb, struct net_device *ndev)
>
> /* Ensure tx_head update visible to tx reclaim */
> smp_wmb();
> + count++;
> + priv->tx_head = TX_NEXT(tx_head);
>
>
Something is wrong here, the comment does not match the code any more, because
the smp_wmb() won't actually make the tx_head update visible.
Arnd
next prev parent reply other threads:[~2015-04-15 14:19 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-04-15 12:30 [PATCH net-next 0/6] net: hip04: fix some problem for hip04 drivers Ding Tianhong
2015-04-15 12:30 ` [PATCH net-next 1/6] net: hip04: Set more appropriate value for tx coalesce num Ding Tianhong
2015-04-15 14:11 ` Arnd Bergmann
2015-04-15 12:30 ` [PATCH net-next 2/6] net: hip04: use the big endian for tx and rx desc Ding Tianhong
2015-04-15 14:13 ` Arnd Bergmann
2015-04-16 6:25 ` Ding Tianhong
2015-04-15 12:30 ` [PATCH net-next 3/6] net: hip04: Solve the problem of the skb memory allocation failure Ding Tianhong
2015-04-15 14:17 ` Arnd Bergmann
2015-04-15 12:30 ` [PATCH net-next 4/6] net: hip04: Don't free the tx skb when the buffer is not ready for xmit Ding Tianhong
2015-04-15 14:19 ` Arnd Bergmann [this message]
2015-04-16 6:26 ` Ding Tianhong
2015-04-16 8:41 ` Arnd Bergmann
2015-04-16 9:38 ` Ding Tianhong
2015-04-15 12:30 ` [PATCH net-next 5/6] net: hip04: remove the unnecessary check Ding Tianhong
2015-04-15 14:14 ` Arnd Bergmann
2015-04-15 12:30 ` [PATCH net-next 6/6] net: hip04: add ratelimit for rx/tx drops skb Ding Tianhong
2015-04-15 14:20 ` Arnd Bergmann
2015-04-15 14:25 ` [PATCH net-next 0/6] net: hip04: fix some problem for hip04 drivers Arnd Bergmann
2015-04-16 6:28 ` Ding Tianhong
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=2218546.M1hzu1bzfh@wuerfel \
--to=arnd@arndb.de \
--cc=linux-arm-kernel@lists.infradead.org \
/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