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Date:   Thu, 12 May 2022 14:17:17 +0200
From:   Lukas Wunner <>
Cc:     Andrew Lunn <>
Subject: Re: [PATCH net-next v3 6/7] net: phy: smsc: Cache interrupt mask

On Thu, May 12, 2022 at 10:42:06AM +0200, Lukas Wunner wrote:
> Cache the interrupt mask to avoid re-reading it from the PHY upon every
> interrupt.
> This will simplify a subsequent commit which detects hot-removal in the
> interrupt handler and bails out.
> Analyzing and debugging PHY transactions also becomes simpler if such
> redundant reads are avoided.
> Last not least, interrupt overhead and latency is slightly improved.
> Tested-by: Oleksij Rempel <> # LAN9514/9512/9500
> Tested-by: Ferry Toth <> # LAN9514
> Signed-off-by: Lukas Wunner <>

Reviewed-by: Andrew Lunn <>

Andrew kindly provided this tag here:

Forgot to add it to the commit.
Sending it in separately so patchwork picks it up.
My apologies for the inconvenience.

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