linux-kernel - Re: [PATCH net] gve: Check valid ts bit on RX descriptor before hw timestamping

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Message-ID: <55adf770-a6b2-46d0-98bd-cbcc03e344b0@linux.dev>
Date: Tue, 14 Oct 2025 15:58:11 +0100
From: Vadim Fedorenko <vadim.fedorenko@...ux.dev>
To: Harshitha Ramamurthy <hramamurthy@...gle.com>, netdev@...r.kernel.org
Cc: joshwash@...gle.com, andrew+netdev@...n.ch, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com, willemb@...gle.com,
 pkaligineedi@...gle.com, jfraker@...gle.com, ziweixiao@...gle.com,
 thostet@...gle.com, linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH net] gve: Check valid ts bit on RX descriptor before hw
 timestamping

On 14/10/2025 01:47, Harshitha Ramamurthy wrote:
> From: Tim Hostetler <thostet@...gle.com>
> 
> The device returns a valid bit in the LSB of the low timestamp byte in
> the completion descriptor that the driver should check before
> setting the SKB's hardware timestamp. If the timestamp is not valid, do not
> hardware timestamp the SKB.
> 
> Cc: stable@...r.kernel.org
> Fixes: b2c7aeb49056 ("gve: Implement ndo_hwtstamp_get/set for RX timestamping")
> Reviewed-by: Joshua Washington <joshwash@...gle.com>
> Signed-off-by: Tim Hostetler <thostet@...gle.com>
> Signed-off-by: Harshitha Ramamurthy <hramamurthy@...gle.com>

Reviewed-by: Vadim Fedorenko <vadim.fedorenko@...ux.dev>