From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.5 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 805EBC47255 for ; Mon, 11 May 2020 12:34:15 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 52F4D206D6 for ; Mon, 11 May 2020 12:34:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=mg.codeaurora.org header.i=@mg.codeaurora.org header.b="cMAWk4mX" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729466AbgEKMeO (ORCPT ); Mon, 11 May 2020 08:34:14 -0400 Received: from mail26.static.mailgun.info ([104.130.122.26]:63390 "EHLO mail26.static.mailgun.info" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729820AbgEKMeI (ORCPT ); Mon, 11 May 2020 08:34:08 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1589200447; h=Date: Message-Id: Cc: To: References: In-Reply-To: From: Subject: Content-Transfer-Encoding: MIME-Version: Content-Type: Sender; bh=K/ZVBtan0dAMs+9OwwNDoOBPaVIbhgR20VKrES40O3Q=; b=cMAWk4mXSHg+jkuYcLVPfgKWm3w8KyUjAxmDKFCDD77n9u8kubaME8pijMuujm8FfK+l6XGm PdORBUoRs6DdJPVH/RlJeWTCSusmtOPDXPriYiNbDCXxY7WvfgwAr1iZdpFBumK1Z77ivE2m u67o5tWkYX1kPt+0/NwFjGlZbEQ= X-Mailgun-Sending-Ip: 104.130.122.26 X-Mailgun-Sid: WyI3YTAwOSIsICJsaW51eC13aXJlbGVzc0B2Z2VyLmtlcm5lbC5vcmciLCAiYmU5ZTRhIl0= Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by mxa.mailgun.org with ESMTP id 5eb94630.7f93acdfeab0-smtp-out-n04; Mon, 11 May 2020 12:33:52 -0000 (UTC) Received: by smtp.codeaurora.org (Postfix, from userid 1001) id D753CC43637; Mon, 11 May 2020 12:33:52 +0000 (UTC) Received: from potku.adurom.net (88-114-240-156.elisa-laajakaista.fi [88.114.240.156]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: kvalo) by smtp.codeaurora.org (Postfix) with ESMTPSA id 75375C432C2; Mon, 11 May 2020 12:33:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 75375C432C2 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=none smtp.mailfrom=kvalo@codeaurora.org Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PATCH] wil6210: avoid gcc-10 zero-length-bounds warning From: Kalle Valo In-Reply-To: <20200505143332.1398524-1-arnd@arndb.de> References: <20200505143332.1398524-1-arnd@arndb.de> To: Arnd Bergmann Cc: Maya Erez , "David S. Miller" , Arnd Bergmann , Dedy Lansky , Ahmad Masri , Alexei Avshalom Lazar , Tzahi Sabo , "Gustavo A. R. Silva" , Lior David , linux-wireless@vger.kernel.org, wil6210@qti.qualcomm.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org User-Agent: pwcli/0.1.0-git (https://github.com/kvalo/pwcli/) Python/3.5.2 Message-Id: <20200511123352.D753CC43637@smtp.codeaurora.org> Date: Mon, 11 May 2020 12:33:52 +0000 (UTC) Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Arnd Bergmann wrote: > gcc-10 warns about accesses inside of a zero-length array: > > drivers/net/wireless/ath/wil6210/cfg80211.c: In function 'wil_cfg80211_scan': > drivers/net/wireless/ath/wil6210/cfg80211.c:970:23: error: array subscript 255 is outside the bounds of an interior zero-length array 'struct [0]' [-Werror=zero-length-bounds] > 970 | cmd.cmd.channel_list[cmd.cmd.num_channels++].channel = ch - 1; > | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ > In file included from drivers/net/wireless/ath/wil6210/wil6210.h:17, > from drivers/net/wireless/ath/wil6210/cfg80211.c:11: > drivers/net/wireless/ath/wil6210/wmi.h:477:4: note: while referencing 'channel_list' > 477 | } channel_list[0]; > | ^~~~~~~~~~~~ > > Turn this into a flexible array to avoid the warning. > > Signed-off-by: Arnd Bergmann > Signed-off-by: Kalle Valo Patch applied to ath-next branch of ath.git, thanks. 04a4d3416372 wil6210: avoid gcc-10 zero-length-bounds warning -- https://patchwork.kernel.org/patch/11529309/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches