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From: Or Gerlitz <gerlitz.or@gmail.com>
To: Sasha Levin <sashal@kernel.org>
Cc: Stable <stable@vger.kernel.org>,
	Linux Netdev List <netdev@vger.kernel.org>,
	Saeed Mahameed <saeedm@mellanox.com>,
	David Miller <davem@davemloft.net>
Subject: Re: [PATCH AUTOSEL 4.9 09/26] net/mlx5e: Init ethtool steering for representors
Date: Sun, 12 Apr 2020 10:10:22 +0300	[thread overview]
Message-ID: <CAJ3xEMhhtj77M5vercHDMAHPPVZ8ZF-eyCVQgD4ZZ1Ur3Erbdw@mail.gmail.com> (raw)
In-Reply-To: <20200411231413.26911-9-sashal@kernel.org>

On Sun, Apr 12, 2020 at 2:16 AM Sasha Levin <sashal@kernel.org> wrote:

> [ Upstream commit 6783e8b29f636383af293a55336f036bc7ad5619 ]

Sasha,

This was pushed to net-next without a fixes tag, and there're probably
reasons for that.
As you can see the possible null deref is not even reproducible without another
patch which for itself was also net-next and not net one.

If a team is not pushing patch to net nor putting a fixes that, I
don't think it's correct
to go and pick that into stable and from there to customer production kernels.

Alsom, I am not sure what's the idea behind the auto-selection concept, e.g for
mlx5 the maintainer is specifically pointing which patches should go
to stable and
to what releases there and this is done with care and thinking ahead, why do we
want to add on that? and why this can be something which is just
automatic selection?

We have customers running production system with LTS 4.4.x and 4.9.y (along with
4.14.z and 4.19.w) kernels, we put lots of care thinking if/what
should go there, I don't
see a benefit from adding auto-selection, the converse.

Or.


> During transition to uplink representors the code responsible for
> initializing ethtool steering functionality wasn't added to representor
> init rx routine. This causes NULL pointer dereference during configuration
> of network flow classification rule with ethtool (only possible to
> reproduce with next commit in this series which registers necessary ethtool
> callbacks).


> Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
> Reviewed-by: Roi Dayan <roid@mellanox.com>
> Signed-off-by: Sasha Levin <sashal@kernel.org>

  reply	other threads:[~2020-04-12  7:10 UTC|newest]

Thread overview: 59+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-11 23:13 [PATCH AUTOSEL 4.9 01/26] net: wan: wanxl: use allow to pass CROSS_COMPILE_M68k for rebuilding firmware Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 02/26] net: phy: probe PHY drivers synchronously Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 04/26] net: phy: mscc: accept all RGMII species in vsc85xx_mac_if_set Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 06/26] mwifiex: set needed_headroom, not hard_header_len Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 07/26] Bluetooth: L2CAP: handle l2cap config request during open state Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 09/26] net/mlx5e: Init ethtool steering for representors Sasha Levin
2020-04-12  7:10   ` Or Gerlitz [this message]
2020-04-12 17:59     ` Jakub Kicinski
2020-04-12 18:29       ` Or Gerlitz
2020-04-14  1:56       ` Sasha Levin
2020-04-14  7:16         ` Leon Romanovsky
2020-04-14 10:22         ` Or Gerlitz
2020-04-14 11:09           ` Greg KH
2020-04-14 14:38             ` Or Gerlitz
2020-04-14 15:16               ` Sasha Levin
2020-04-14 15:49               ` Edward Cree
2020-04-14 17:37                 ` Leon Romanovsky
2020-04-14 19:03                   ` Jakub Kicinski
2020-04-14 21:00                   ` Sasha Levin
2020-04-14 22:50                   ` Michal Kubecek
2020-04-15  5:31                     ` Leon Romanovsky
2020-04-15 14:07                     ` Sasha Levin
2020-04-14 20:57                 ` Sasha Levin
2020-04-15 16:18                   ` Edward Cree
2020-04-16  0:00                     ` Sasha Levin
2020-04-16  4:08                       ` Saeed Mahameed
2020-04-16  5:24                         ` Leon Romanovsky
2020-04-16 13:30                           ` Sasha Levin
2020-04-16 19:07                             ` Saeed Mahameed
2020-04-16 19:58                               ` Sasha Levin
2020-04-16 21:08                                 ` Saeed Mahameed
2020-04-17  8:28                                   ` gregkh
2020-04-17 22:23                                     ` Saeed Mahameed
2020-04-18 10:51                                       ` gregkh
2020-04-17 13:21                                   ` Sasha Levin
2020-04-17 22:38                                     ` Saeed Mahameed
2020-04-16 13:40                       ` Or Gerlitz
2020-04-16 14:04                         ` Sasha Levin
2020-04-16 14:17                           ` Or Gerlitz
2020-04-16 14:36                             ` Sasha Levin
2020-04-16 17:20                         ` Greg KH
2020-04-16 19:31                           ` Saeed Mahameed
2020-04-16 19:53                             ` Sasha Levin
2020-04-16 21:32                               ` Saeed Mahameed
2020-04-16 23:23                                 ` Sasha Levin
2020-04-21  3:07                                   ` Saeed Mahameed
2020-04-16 20:08                             ` Jakub Kicinski
2020-04-16 21:11                               ` Saeed Mahameed
2020-04-17  8:25                                 ` gregkh
2020-04-16 16:06                       ` Edward Cree
2020-04-16 18:49                         ` Sasha Levin
2020-04-20 11:45                           ` Edward Cree
2020-04-20 12:53                             ` Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 10/26] Bluetooth: Fix calculation of SCO handle for packet processing Sasha Levin
2020-04-11 23:13 ` [PATCH AUTOSEL 4.9 11/26] Bluetooth: guard against controllers sending zero'd events Sasha Levin
2020-04-11 23:14 ` [PATCH AUTOSEL 4.9 13/26] net: intel: e1000e: fix possible sleep-in-atomic-context bugs in e1000e_get_hw_semaphore() Sasha Levin
2020-04-11 23:14 ` [PATCH AUTOSEL 4.9 19/26] Bluetooth: RFCOMM: fix ODEBUG bug in rfcomm_dev_ioctl Sasha Levin
2020-04-11 23:14 ` [PATCH AUTOSEL 4.9 20/26] brcmfmac: Fix driver crash on USB control transfer timeout Sasha Levin
2020-04-11 23:14 ` [PATCH AUTOSEL 4.9 26/26] svcrdma: Fix leak of transport addresses Sasha Levin

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