From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp.codeaurora.org ([198.145.29.96]:59212 "EHLO smtp.codeaurora.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1957239AbdDZIxh (ORCPT ); Wed, 26 Apr 2017 04:53:37 -0400 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Subject: Re: ath6kl: assure headroom of skbuff is writable in .start_xmit() From: Kalle Valo In-Reply-To: <1493111408-27692-1-git-send-email-arend.vanspriel@broadcom.com> References: <1493111408-27692-1-git-send-email-arend.vanspriel@broadcom.com> To: Arend Van Spriel , Steve deRosier Cc: linux-wireless , Arend van Spriel Message-Id: <20170426085337.181AA61493@smtp.codeaurora.org> (sfid-20170426_105510_511260_35215C9D) Date: Wed, 26 Apr 2017 08:53:37 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org List-ID: Arend Van Spriel wrote: > An issue was found brcmfmac driver in which a skbuff in .start_xmit() > callback was actually cloned. So instead of checking for sufficient > headroom it should also be writable. Hence use skb_cow_head() to > check and expand the headroom appropriately. > > Signed-off-by: Arend van Spriel Steve, would you have time to run a quick test with this? Patch set to Deferred. -- https://patchwork.kernel.org/patch/9697757/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches