From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 442AC29ACFC for ; Wed, 17 Sep 2025 15:36:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758123373; cv=none; b=nqkWX1ifupI0CR4V5XciFUCHThlrVY8eqaNk81/KLYKhOJmmvICz+UdPvb2LEGNHqm+sliGHkH/Hd5gIoxABa2qmr4Dvr9W9IkEkV9bOCMpfwS1G1vfa/m9qS7Zqs8zTl/2V4+z5D+a1Msg/ImtlY/rfdQ/beKNtDuXrYwo/91M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758123373; c=relaxed/simple; bh=GkN+/4KIC6CPpsUlg169vcZi4r6sXMiSBbuheLuFQdg=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=LyPAnc6Ou6ANJiszaOJDIVXimeUiFMSrsNe/Y0/SqTMj9Z8dfSuakALFhZfNpA3CxkyL7uhFQVW3jVoP9kc+Ya0DwFOi+BU3NhpiK9IpWa3IwiE/7uKXy9p5k0FFP5/Tn3IBtNCYbxcKziO+klme6iCGwe1vMrpmum4UFuddArU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LfpMxRZY; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="LfpMxRZY" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7EDF7C4CEE7; Wed, 17 Sep 2025 15:36:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758123371; bh=GkN+/4KIC6CPpsUlg169vcZi4r6sXMiSBbuheLuFQdg=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=LfpMxRZYKYpxRAlRF3/dWN3D930dCNuJi5b8Q/CjyWlIUqrXFIhpDcbCQUV+W1Fo/ a57DzpG9DLks5c/XlmXhwHxv99NMr2dqeu51exgGZNxpVZhXZcO/2WVS8b7IjHdu9H LSQOXfxZ+kIIGP3zuFrt3mPEnOxf9975Hx8BhOfL8YGHU8+hl1uDc3Hcr0vOTCaUSH gHMKT1fR1XFW8P95iNmLZT58kgYSogrym0QFEJmNZk6IdLiZQTm5IZtr+8MSxh95d6 aj7nYVv+LTtkAru78T800/f5KK6HYSF3G0Fxyjsbr2t5+3wBr3O4FqnlZi1Hb+VCLe uyoMNlXaai9vw== Message-ID: <35f13da6-4822-4044-83f7-dfdca0179627@kernel.org> Date: Wed, 17 Sep 2025 09:36:10 -0600 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net-next 04/10] ipv6: reorganise struct ipv6_pinfo Content-Language: en-US To: Eric Dumazet , "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , Willem de Bruijn , Kuniyuki Iwashima , netdev@vger.kernel.org, eric.dumazet@gmail.com References: <20250916160951.541279-1-edumazet@google.com> <20250916160951.541279-5-edumazet@google.com> From: David Ahern In-Reply-To: <20250916160951.541279-5-edumazet@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit 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 > --- > include/linux/ipv6.h | 33 ++++++++++++++++----------------- > 1 file changed, 16 insertions(+), 17 deletions(-) > Reviewed-by: David Ahern