From: "Greg KH" gregkh@linuxfoundation.org To: "Enguerrand de Ribaucourt" enguerrand.de-ribaucourt@savoirfairelinux.com Cc: "stable" stable@vger.kernel.org, "Andrew Lunn" andrew@lunn.ch, "Jakub Kicinski" kuba@kernel.org Sent: Tuesday, September 13, 2022 1:30:26 PM Subject: Re: [PATCH v3] net: dp83822: disable rx error interrupt
On Tue, Sep 13, 2022 at 10:17:48AM +0200, Enguerrand de Ribaucourt wrote:
Some RX errors, notably when disconnecting the cable, increase the RCSR register. Once half full (0x7fff), an interrupt flood is generated. I measured ~3k/s interrupts even after the RX errors transfer was stopped.
Since we don't read and clear the RCSR register, we should disable this interrupt.
Fixes: 87461f7a58ab ("net: phy: DP83822 initial driver submission") Signed-off-by: Enguerrand de Ribaucourt enguerrand.de-ribaucourt@savoirfairelinux.com Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: Jakub Kicinski kuba@kernel.org [backport of 5.10 commit 0e597e2affb90d6ea48df6890d882924acf71e19]
Backport to what? This is already in 5.10, where do you want this commit applied to?
thanks,
greg k-h
Hi,
I would like this commit to be applied to 5.4. It should also apply to 4.19.
Thanks, Enguerrand de Ribaucourt