linux-kernel - Intel e1000e driver bug on stable (6.9.x)

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Date: Wed, 12 Jun 2024 22:33:19 +0200
From: Ismael Luceno <ismael@...ev.co.uk>
To: stable@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
Subject: Intel e1000e driver bug on stable (6.9.x)

Hi,

I noticed that the NIC started to fail on a couple of notebooks [0]
[1] after upgrading to 6.9.1.

I tracked down the problem to commit 861e8086029e ("e1000e: move force
SMBUS from enable ulp function to avoid PHY loss issue", 2024-03-03),
included in all 6.9.x releases.

The fix is in commit bfd546a552e1 ("e1000e: move force SMBUS near
the end of enable_ulp function", 2024-05-28) from mainline.

The NIC fails right after boot on both systems I tried; I mention
because the description is a bit unclear about that on the fix, maybe
other systems are affected differently.

Best regards.

[0] HP ZBook 17 Gen 1 (D5D93AV) [8086:153a (rev 04)]
[1] Lenovo Thinkpad P15 Gen 1 [8086:0d4c]