linux-kernel - Re: [PATCH V2 03/12 net-next] qca_spi: Avoid skb_copy

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Message-ID: <7a233358-2353-4c61-9d90-9f687f63b8bd@intel.com>
Date: Wed, 20 Dec 2023 14:22:05 -0800
From: Jacob Keller <jacob.e.keller@...el.com>
To: Stefan Wahren <wahrenst@....net>, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, "Paolo
 Abeni" <pabeni@...hat.com>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V2 03/12 net-next] qca_spi: Avoid skb_copy_expand in TX
 path



On 12/18/2023 3:26 PM, Stefan Wahren wrote:
> The skb spare room needs to be expanded for SPI header, footer
> and possible padding within the TX path. So announce the necessary
> space in order to avoid expensive skb_copy_expand calls.
> 
> Signed-off-by: Stefan Wahren <wahrenst@....net>
> ---

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>