netdev - Re: [PATCH net-next v2 12/15] ice: handle flushing stale Tx timestamps in ice_ptp_tx

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Date:   Wed, 7 Dec 2022 15:56:53 -0800
From:   Saeed Mahameed <saeed@...nel.org>
To:     unlisted-recipients:; (no To-header on input)
Cc:     davem@...emloft.net, kuba@...nel.org, pabeni@...hat.com,
        edumazet@...gle.com, Jacob Keller <jacob.e.keller@...el.com>,
        netdev@...r.kernel.org, richardcochran@...il.com, leon@...nel.org,
        Gurucharan G <gurucharanx.g@...el.com>
Subject: Re: [PATCH net-next v2 12/15] ice: handle flushing stale Tx
 timestamps in ice_ptp_tx_tstamp

On 07 Dec 13:09, Tony Nguyen wrote:
>From: Jacob Keller <jacob.e.keller@...el.com>
>
>In the event of a PTP clock time change due to .adjtime or .settime, the
>ice driver needs to update the cached copy of the PHC time and also discard
>any outstanding Tx timestamps.
>

[...]

>+static void
>+ice_ptp_mark_tx_tracker_stale(struct ice_ptp_tx *tx)
>+{
>+	u8 idx;
>+
>+	spin_lock(&tx->lock);
>+	for_each_set_bit(idx, tx->in_use, tx->len)
>+		set_bit(idx, tx->stale);

nit: bitmap_or()?