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Open Source and information security mailing list archives
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Date: Tue, 12 Apr 2022 14:46:55 -0700 From: Richard Cochran <richardcochran@...il.com> To: Gerhard Engleder <gerhard@...leder-embedded.com> Cc: Vinicius Costa Gomes <vinicius.gomes@...el.com>, yangbo.lu@....com, David Miller <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, mlichvar@...hat.com, netdev <netdev@...r.kernel.org> Subject: Re: [PATCH net-next v2 4/5] ptp: Support late timestamp determination On Tue, Apr 12, 2022 at 09:24:10PM +0200, Gerhard Engleder wrote: > I'm thinking about why there should be a slow path with lookup. If the > address/cookie > points to a defined data structure with two timestamps, then no lookup > for the phc or > netdev is necessary. It should be possible for every driver to > allocate a skbuff with enough > space for this structure in front of the received Ethernet frame. Adding 16 bytes for every allocated skbuff is going to be a tough sell. Most people don't want/need this. Thanks, Richard
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