All of lore.kernel.org
 help / color / mirror / Atom feed
From: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>,
	Eric Dumazet <edumazet@google.com>
Subject: Re: [PATCH net-next 2/6] sk_buff: track dst status in slow_gro
Date: Fri, 30 Jul 2021 04:08:24 -0700	[thread overview]
Message-ID: <20210730040824.097e0e9d@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> (raw)
In-Reply-To: <a6d684d37ca7598dc89b1ff886f9b049393f0d99.1627405778.git.pabeni@redhat.com>

On Wed, 28 Jul 2021 18:24:00 +0200 Paolo Abeni wrote:
> diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
> index 3ff18300d210..b1e5bbfcc926 100644
> --- a/include/linux/skbuff.h
> +++ b/include/linux/skbuff.h
> @@ -992,6 +992,7 @@ static inline struct dst_entry *skb_dst(const struct sk_buff *skb)
>   */
>  static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
>  {
> +	skb->slow_gro |= !!dst;
>  	skb->_skb_refdst = (unsigned long)dst;
>  }
>  
> @@ -1008,6 +1009,7 @@ static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
>  static inline void skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst)
>  {
>  	WARN_ON(!rcu_read_lock_held() && !rcu_read_lock_bh_held());
> +	skb->slow_gro = !!dst;

why is this one = and not |= ?

>  	skb->_skb_refdst = (unsigned long)dst | SKB_DST_NOREF;
>  }

  reply	other threads:[~2021-07-30 11:08 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-28 16:23 [PATCH net-next 0/6] sk_buff: optimize GRO for the common case Paolo Abeni
2021-07-28 16:23 ` [PATCH net-next 1/6] sk_buff: introduce 'slow_gro' flags Paolo Abeni
2021-07-28 16:24 ` [PATCH net-next 2/6] sk_buff: track dst status in slow_gro Paolo Abeni
2021-07-30 11:08   ` Jakub Kicinski [this message]
2021-07-30 13:08     ` Paolo Abeni
2021-07-28 16:24 ` [PATCH net-next 3/6] sk_buff: track extension " Paolo Abeni
2021-07-28 16:24 ` [PATCH net-next 4/6] net: optimize GRO for the common case Paolo Abeni
2021-07-28 16:24 ` [PATCH net-next 5/6] skbuff: allow 'slow_gro' for skb carring sock reference Paolo Abeni
2021-07-28 16:24 ` [PATCH net-next 6/6] veth: use skb_prepare_for_gro() Paolo Abeni
2021-07-29 11:20 ` [PATCH net-next 0/6] sk_buff: optimize GRO for the common case 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=20210730040824.097e0e9d@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com \
    --to=kuba@kernel.org \
    --cc=davem@davemloft.net \
    --cc=edumazet@google.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.