netdev - Re: [PATCH 4.9] brcmfmac: use correct skb freeing helper when deleting flowring

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Date:   Tue, 27 Sep 2016 15:08:20 +0300
From:   Kalle Valo <kvalo@...eaurora.org>
To:     Rafał Miłecki <zajec5@...il.com>
Cc:     Arend Van Spriel <arend.vanspriel@...adcom.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Pieter-Paul Giesberts <pieter-paul.giesberts@...adcom.com>,
        Franky Lin <frankyl@...adcom.com>,
        "linux-wireless\@vger.kernel.org" <linux-wireless@...r.kernel.org>,
        "open list\:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" 
        <brcm80211-dev-list.pdl@...adcom.com>,
        Network Development <netdev@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Rafał Miłecki <rafal@...ecki.pl>
Subject: Re: [PATCH 4.9] brcmfmac: use correct skb freeing helper when deleting flowring

Rafał Miłecki <zajec5@...il.com> writes:

>>>>> Kalle: this isn't important enough for 4.8 as it's too late for that.
>>>>>
>>>>> I'd like to get it for 4.9 however, as this fixes bug that could lead
>>>>> to WARNING on every add_key/del_key call. We was struggling with these
>>>>> WARNINGs for some time and this fixes one of two problems causing them.
>>>
>>> Ok, I'll queue this for 4.9.
>>>
>>>> Please mark it for stable as well.
>>>
>>> I can add that. Any ideas how old releases stable releases should this
>>> go to?
>>
>> I was analyzing this.
>> 1) This patch uses brcmf_get_ifp which is available in 4.4+ only.
>> 2) It applies cleanly to 4.5+ only due to 32f90caa7debd ("brcmfmac:
>> Increase nr of supported flowrings.")
>> 3) 4.4 would also require applying to the patch without broadcom/ subdir
>>
>> That said I suggest 4.5+. Any objections?
>
> Let me see if patchwork with pick Cc tag as it does for others.
>
> Cc: stable@...r.kernel.org # 4.5+

An excellent idea but no luck:

Signed-off-by: Rafa? Mi?ecki <rafal@...ecki.pl>
Acked-by: Arend van Spriel <arend@...adcom.com>

I'll add this to my patchwork wishlist though, I think it would be a
really useful feature to have.

(The question marks are because of my buggy copy paste, ignore those)

-- 
Kalle Valo