netdev - Re: [PATCH net-next 04/10] ipv6: reorganise struct ipv6

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Message-ID: <35f13da6-4822-4044-83f7-dfdca0179627@kernel.org>
Date: Wed, 17 Sep 2025 09:36:10 -0600
From: David Ahern <dsahern@...nel.org>
To: Eric Dumazet <edumazet@...gle.com>, "David S . Miller"
 <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>
Cc: Simon Horman <horms@...nel.org>, Willem de Bruijn <willemb@...gle.com>,
 Kuniyuki Iwashima <kuniyu@...gle.com>, netdev@...r.kernel.org,
 eric.dumazet@...il.com
Subject: Re: [PATCH net-next 04/10] ipv6: reorganise struct ipv6_pinfo

On 9/16/25 10:09 AM, Eric Dumazet wrote:
> Move fields used in tx fast path at the beginning of the structure,
> and seldom used ones at the end.
> 
> Note that rxopt is also in the first cache line.
> 
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> ---
>  include/linux/ipv6.h | 33 ++++++++++++++++-----------------
>  1 file changed, 16 insertions(+), 17 deletions(-)
> 

Reviewed-by: David Ahern <dsahern@...nel.org>