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Date: Sun, 24 Aug 2025 10:45:36 +0200
From: Greg KH <gregkh@linuxfoundation.org>
To: Jakub Kicinski <kuba@kernel.org>
Cc: Sasha Levin <sashal@kernel.org>, stable@vger.kernel.org,
	John Ernberg <john.ernberg@actia.se>
Subject: Re: [PATCH 5.4.y] net: usbnet: Avoid potential RCU stall on
 LINK_CHANGE event
Message-ID: <2025082429-unholy-sprung-75cb@gregkh>
References: <2025081259-headset-swinger-4805@gregkh>
 <20250813134932.2037778-1-sashal@kernel.org>
 <20250813073802.3f28d69c@kernel.org>
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In-Reply-To: <20250813073802.3f28d69c@kernel.org>

On Wed, Aug 13, 2025 at 07:38:02AM -0700, Jakub Kicinski wrote:
> On Wed, 13 Aug 2025 09:49:32 -0400 Sasha Levin wrote:
> > From: John Ernberg <john.ernberg@actia.se>
> > 
> > [ Upstream commit 0d9cfc9b8cb17dbc29a98792d36ec39a1cf1395f ]
> > 
> > The Gemalto Cinterion PLS83-W modem (cdc_ether) is emitting confusing link
> > up and down events when the WWAN interface is activated on the modem-side.
> > 
> > Interrupt URBs will in consecutive polls grab:
> > * Link Connected
> > * Link Disconnected
> > * Link Connected
> 
> Be sure to pull in 8466d393700f9cc into the same release.
> This change broke Linus's laptop.
> 

Thanks, now picked up.