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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8FE6EC00528 for ; Tue, 1 Aug 2023 17:30:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231653AbjHARaf (ORCPT ); Tue, 1 Aug 2023 13:30:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38134 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233856AbjHARab (ORCPT ); Tue, 1 Aug 2023 13:30:31 -0400 Received: from mail-pg1-x52b.google.com (mail-pg1-x52b.google.com [IPv6:2607:f8b0:4864:20::52b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 009A5E71 for ; Tue, 1 Aug 2023 10:30:28 -0700 (PDT) Received: by mail-pg1-x52b.google.com with SMTP id 41be03b00d2f7-563e6524aaeso3446270a12.0 for ; Tue, 01 Aug 2023 10:30:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1690911028; x=1691515828; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=5UkfaFNS6PyQamzbmmCA96R1ctLMlDtPFxg5rPKFvn0=; b=ig03R9f26Io9mZRy/gthUxgE3w+/0k7snxeJgxSl6+mwRNVWizC02DNjIQDq8m3xrH Vg840aKGAHvEdMCDs04jyfu3tyarRhBnRM84RJCzWd5nUxZPZ8k7tWC/tinCeIEbqtOf 4Xd/hpUfIMEz1/0zzW7kCpw/bOi703v2qdmP0= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1690911028; x=1691515828; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=5UkfaFNS6PyQamzbmmCA96R1ctLMlDtPFxg5rPKFvn0=; b=H6Ia4ybs3H9gCQcrw6wSolxIxs3LAW00m2rhK4auWyu0zVRBGm7elKSbNoRlvbmtok VOYtK9YdX6VAGxI9VOkmkTlFmHcquXxgg+x0aRIXyBNzbAOupokkeJVbQNwa3nUr2CFJ aURBEEyw6kM1eZIb7biqclwOF0fbVzRaHYATjU5d9dJ/bovfBXB1c5tGdKusZddAVIpx qudwlDBFW8V0d/ZACRk+BGUYSOU8zftyMM1HhbhLWki+0Nyxh+jwpTNRrGrB4RX2zrs0 utTRqE5TRUNkK1HgrFu/IY1AxlYddkT1M+rPW+tXqbbAgzGnMKfLAs9UQzJ36qrKxRDq KLew== X-Gm-Message-State: ABy/qLYZQH4INbnIia7Dd3Pw6ddkE9Ww0xBpQQbSKjUM20wLjCV1o0Wc lbx30R3tW3m9mZBJrfni3/yc7g== X-Google-Smtp-Source: APBJJlGeRYdG7+8sYbdVaQYLv/kApU8rzcyO+v9cxR1ZM3lkg/IZowd6BZdBE5G926/17ajA741tIw== X-Received: by 2002:a17:90a:46c7:b0:262:e742:f40a with SMTP id x7-20020a17090a46c700b00262e742f40amr10648695pjg.44.1690911028158; Tue, 01 Aug 2023 10:30:28 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id z136-20020a63338e000000b0056001f43726sm10106893pgz.92.2023.08.01.10.30.27 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 01 Aug 2023 10:30:27 -0700 (PDT) Date: Tue, 1 Aug 2023 10:30:27 -0700 From: Kees Cook To: Petr Tesarik Cc: Arend van Spriel , Franky Lin , Hante Meuleman , Kalle Valo , Chi-hsien Lin , Ian Lin , Wright Feng , Hector Martin , Prasanna Kerekoppa , Hans de Goede , Ramesh Rangavittal , Linus Walleij , "Gustavo A. R. Silva" , Ryohei Kondo , Greg Kroah-Hartman , "Jason A. Donenfeld" , "Darrick J. Wong" , Jason Gunthorpe , Brian Henriquez , "open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" , "open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" , "open list:BROADCOM BRCM80211 IEEE802.11n WIRELESS DRIVER" , open list , Roberto Sassu , petr@tesarici.cz, Przemek Kitszel Subject: Re: [PATCH v1 3/3] wifi: brcm80211: change channel_list to a flexible array Message-ID: <202308011028.BC462D29E@keescook> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 01, 2023 at 05:36:42PM +0200, Petr Tesarik wrote: > From: Petr Tesarik > > The channel list is in fact a flexible array, but it has a length of 1 to > make sure there is enough room for the special chanspec -1 when the struct > is allocated on stack to abort a scan. There is patch series proposing a way to put flex array structures with a compile-time-known size on the stack. Would that help for this series? https://lore.kernel.org/netdev/20230801111923.118268-1-przemyslaw.kitszel@intel.com/ -Kees > -- Kees Cook