netdev - Re: [PATCH v2] brcmfmac: Make skb header writable before use

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Message-ID: <1493057382.6453.39.camel@edumazet-glaptop3.roam.corp.google.com>
Date:   Mon, 24 Apr 2017 11:09:42 -0700
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     James Hughes <james.hughes@...pberrypi.org>
Cc:     Arend van Spriel <arend.vanspriel@...adcom.com>,
        Franky Lin <franky.lin@...adcom.com>,
        Hante Meuleman <hante.meuleman@...adcom.com>,
        Kalle Valo <kvalo@...eaurora.org>,
        linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2] brcmfmac: Make skb header writable before use

On Mon, 2017-04-24 at 14:03 +0100, James Hughes wrote:
> The driver was making changes to the skb_header without
> ensuring it was writable (i.e. uncloned).
> This patch also removes some boiler plate header size
> checking/adjustment code as that is also handled by the
> skb_cow_header function used to make header writable.
> 
> This patch depends on
> brcmfmac: Ensure pointer correctly set if skb data location changes
> 
> Signed-off-by: James Hughes <james.hughes@...pberrypi.org>
> ---
> Changes in v2
>   Makes the _cow_ call at the entry point of the skb in to the
>   stack, means only needs to be done once, and error handling
>   is easier.
>   Split a separate minor bug fix off to a separate patch (which
>   this patch depends on)

Best way to handle dependencies is to send a patch series.

1/2 brcmfmac: Ensure pointer correctly set if skb data location changes
2/2 brcmfmac: Make skb header writable before use