From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5CBA72DB75; Fri, 15 Dec 2023 13:29:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="JXsLTunK" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0408EC433C7; Fri, 15 Dec 2023 13:29:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702646980; bh=rpyS4v8W+CuN4+EjjXEahB1+6g1qTTqMvB9+ugujzJg=; h=Subject:From:In-Reply-To:References:To:Cc:Date:From; b=JXsLTunKMBBISI4ECLjoovakgd/auY72meweT5jEaGxWUmWWMPpUZ0/zdNwREoc2g 2aS2ZNCm1VcCgKfG9UUbi1WD7ytS5cCUCgEypqXTrz2rzw7bDJr566wVPY4/Pny+JZ 9e+Ey7VpBE4EOB0iIPpVVjiFfWnmnA44lv/DdIN36uMLpGqTXCll4jaanDarSgmOP2 ZKcszw82ho2s3UYGfr7Wgo8tVp1rJ/hNwk1umGZv2WpM+73haNqFR0Rz01Xs04Y/af xJEUIKZhkdybjvF/4OYAtLELSFBU4uAHRvGWHL0FUfH+95hDrJL/ICpWFM3DS5YP2S sCWwwaOTG5JxQ== Content-Type: text/plain; charset="utf-8" Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: Re: [PATCH v2][wireless-next/for-next] wifi: mt76: mt7996: Use DECLARE_FLEX_ARRAY() and fix -Warray-bounds warnings From: Kalle Valo In-Reply-To: References: To: "Gustavo A. R. Silva" Cc: Felix Fietkau , Lorenzo Bianconi , Ryder Lee , Shayne Chen , Sean Wang , Matthias Brugger , AngeloGioacchino Del Regno , linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, "Gustavo A. R. Silva" , linux-hardening@vger.kernel.org User-Agent: pwcli/0.1.1-git (https://github.com/kvalo/pwcli/) Python/3.11.2 Message-ID: <170264697580.1759617.6397953788753678096.kvalo@kernel.org> Date: Fri, 15 Dec 2023 13:29:37 +0000 (UTC) "Gustavo A. R. Silva" wrote: > Transform zero-length arrays `rate`, `adm_stat` and `msdu_cnt` into > proper flexible-array members in anonymous union in `struct > mt7996_mcu_all_sta_info_event` via the DECLARE_FLEX_ARRAY() > helper; and fix multiple -Warray-bounds warnings: > > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:544:61: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:551:58: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:553:58: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:530:61: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:538:66: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:540:66: warning: array subscript is outside array bounds of 'struct [0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:520:57: warning: array subscript is outside array bounds of 'struct all_sta_trx_rate[0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:526:76: warning: array subscript is outside array bounds of 'struct all_sta_trx_rate[0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:526:76: warning: array subscript is outside array bounds of 'struct all_sta_trx_rate[0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:526:76: warning: array subscript is outside array bounds of 'struct all_sta_trx_rate[0]' [-Warray-bounds=] > drivers/net/wireless/mediatek/mt76/mt7996/mcu.c:526:76: warning: array subscript is outside array bounds of 'struct all_sta_trx_rate[0]' [-Warray-bounds=] > > This results in no differences in binary output, helps with the ongoing > efforts to globally enable -Warray-bounds. > > Reviewed-by: Kees Cook > Signed-off-by: Gustavo A. R. Silva I'll take this directly wireless-next, ok? -- https://patchwork.kernel.org/project/linux-wireless/patch/ZXiU9ayVCslt3qiI@work/ https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches