linux-kernel - Re: [PATCH AUTOSEL 6.10 03/27] r8169: remove detection of chip version 11 (early RTL8168b)

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Message-ID: <39b2fc1f-421a-4547-b7bb-47b207975d73@gmail.com>
Date: Sun, 11 Aug 2024 16:32:07 +0200
From: Heiner Kallweit <hkallweit1@...il.com>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
 Jakub Kicinski <kuba@...nel.org>, nic_swsd@...ltek.com, davem@...emloft.net,
 edumazet@...gle.com, pabeni@...hat.com, netdev@...r.kernel.org
Subject: Re: [PATCH AUTOSEL 6.10 03/27] r8169: remove detection of chip
 version 11 (early RTL8168b)

On 10.08.2024 11:12, Sasha Levin wrote:
> On Mon, Jul 29, 2024 at 10:45:15AM +0200, Heiner Kallweit wrote:
>> On 28.07.2024 02:52, Sasha Levin wrote:
>>> From: Heiner Kallweit <hkallweit1@...il.com>
>>>
>>> [ Upstream commit 982300c115d229565d7af8e8b38aa1ee7bb1f5bd ]
>>>
>>> This early RTL8168b version was the first PCIe chip version, and it's
>>> quite quirky. Last sign of life is from more than 15 yrs ago.
>>> Let's remove detection of this chip version, we'll see whether anybody
>>> complains. If not, support for this chip version can be removed a few
>>> kernel versions later.
>>>
>>> Signed-off-by: Heiner Kallweit <hkallweit1@...il.com>
>>> Link: https://lore.kernel.org/r/875cdcf4-843c-420a-ad5d-417447b68572@gmail.com
>>> Signed-off-by: Jakub Kicinski <kuba@...nel.org>
>>> Signed-off-by: Sasha Levin <sashal@...nel.org>
>>> ---
>>>  drivers/net/ethernet/realtek/r8169_main.c | 4 +++-
>>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
>>> index 7b9e04884575e..d2d46fe17631a 100644
>>> --- a/drivers/net/ethernet/realtek/r8169_main.c
>>> +++ b/drivers/net/ethernet/realtek/r8169_main.c
>>> @@ -2274,7 +2274,9 @@ static enum mac_version rtl8169_get_mac_version(u16 xid, bool gmii)
>>>
>>>          /* 8168B family. */
>>>          { 0x7c8, 0x380,    RTL_GIGA_MAC_VER_17 },
>>> -        { 0x7c8, 0x300,    RTL_GIGA_MAC_VER_11 },
>>> +        /* This one is very old and rare, let's see if anybody complains.
>>> +         * { 0x7c8, 0x300,    RTL_GIGA_MAC_VER_11 },
>>> +         */
>>>
>>>          /* 8101 family. */
>>>          { 0x7c8, 0x448,    RTL_GIGA_MAC_VER_39 },
>>
>> It may be the case that there are still few users out there with this ancient hw.
>> We will know better once 6.11 is out for a few month. In this case we would have to
>> revert this change.
>> I don't think it's a change which should go to stable.
> 
> Sure, I'll drop it.
> 
Just saw that this patch has been added to stable again an hour ago.
Technical issue?