From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-yw1-f182.google.com (mail-yw1-f182.google.com [209.85.128.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5A30F35F5E3 for ; Thu, 16 Jul 2026 06:04:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784181882; cv=none; b=FV6Qk3itbF4qaXCeVIG131z5yg8yX2xEH6VRvuwNxUWxFlkSByIdJjLe2y/OZKuPGqpeoN0WF+NHeEWV30Yt+ysjRpIRjqUM5x0IjrgDpxElpDDhTUxhn1Ra8lu/yeQYCJZLhtAvnioDpVd5ce0qeLa42rjv+RtuPpf8Kq2PONU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784181882; c=relaxed/simple; bh=klKIgWivsTCeKC53xwG7zHFtKvNJmDXHDfW4hAl1X8c=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pJNaqiclDpXJDXDM/iDju+HByfRBHFKdrug+Yw9hATqyM3AIiZPed/TDp3nF4vF9GTfyLajWq8QOHP6Cm8qQXPr+QL9W7xliGlbOBYQz4rOy1zV+VBNsPzJLE5WElMpQI/MBN+PMISB89Yy1P3KG9sn2nU8PaAZg+I3kS3wXw60= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=IppDfIcV; arc=none smtp.client-ip=209.85.128.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="IppDfIcV" Received: by mail-yw1-f182.google.com with SMTP id 00721157ae682-81ed2a00f12so26531487b3.2 for ; Wed, 15 Jul 2026 23:04:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1784181880; x=1784786680; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:sender:from:to:cc:subject:date:message-id:reply-to :content-type; bh=klKIgWivsTCeKC53xwG7zHFtKvNJmDXHDfW4hAl1X8c=; b=IppDfIcVo2VMV969yqpwBWLLL0OJ6kRtVTMWkM04XzwNtMW0yYiOnwC9uqRvS/W2Pm fh58YkR7DCm+9Fl1FYSeysVvPnwMYz0ijcICw7YwJriiPHY3gvigXhrca7S3f06/pGUH kwyTJ/QplB7Jw5qydZsBqANWnbAzsUlIZVLYFaR4h8RCjyIEzeiXOh+av/lUixuoQMVx agtHwYu9ajv1mkGNN1ZyWr3pxsf7iKkunhVbMFxq1xeog7xvuxAACzpY42Ic2mjYwTyw XLTEacTzMNJKHyIEgnIHvazI/4vwmV87tcMkU5ECnuqHaYkY5lfyHUJdKfzPfGJbPDA+ /yhg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784181880; x=1784786680; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:sender:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to:content-type; bh=klKIgWivsTCeKC53xwG7zHFtKvNJmDXHDfW4hAl1X8c=; b=QB5E7XttGdNJPUAQCU619VvRY2F2P9rx/t+ds67WdX4cd9UrHt0P5l69Y6mqV+yn3D WtrrP4lWvsvUpGRFrlGeDI8Q8y1NdS+eGwsmdZFH2tQDATcICIx+XoAZqjmnqVge7VlD Nwpm3uEx5SR3E+a7E2S9EdKtGB8ZWPC69eNfPetnBYu/VpbnaqQNlaAQ8oI8+wa7yQcb o9wCp4M689vQP4gTGq5KfRT8FUmLf7Q+wRhGovbrB/hH2bURWF9qAaqIYbbO7QupPo0U Nr4Xfm7A0nWwbwEdUakpfduRKqti1CplsljOQcqaTTsRFFJqZ6AiqrklAy+2zSZVF+z2 MmAw== X-Forwarded-Encrypted: i=1; AHgh+Rq1UcOwSriFIPSCggqd6byHk28jKQFS+P2mFVFetjCxnRnXHKLUovGH2GUhPIwEmstYSP0HqL9JFNXn5D8=@vger.kernel.org X-Gm-Message-State: AOJu0YxsGwgP9jaWU1E9alGtkF9PQN2pLUQ9Owf0TlxZJFT3erScYqN2 uMGXQaAlmZ2tWjBZIaNT0Ez28TO8VCBbG7xnyq7ohUWFRukLtm4wFdh3 X-Gm-Gg: AfdE7ckTYeys4kkF1vOfaEbY4fVQuyF5/GSJRJfASQVCJvmmZWal015Fgmqr4zqZELa 0x3B/3g/Q43Sffwd6cawat12VEBg4H0gPPeWBO+C5mZUp5A79syYKez0vKhLXqQSNmulKPT08+I yRtMiZbmZvR8hPP5QROSGFOzrjIvG9qeDWT6RKtf/FsIpiyN3zjAUkDzUkdQHz7LKdjmmLHrACd TXmLVNo/JNrUdFO6biPvM7YGHOdRhrRcR2bNBe4kBeY/u5tcmjZ7Ord12WKQNAxj9BIuERmZxSP t6HWxf/w4IeXnXTMAvuXahvbgRxJ5LM1nsKtFueRCeXDJQwU1Dxq1gt7dXYdPEGi/Rhsg5YJshW GKU8hschLD9tzzEYUuQ0QNUQPa/u/2c1ydMSb2A1uktt2SRIpAmUyZa1bdsBypglOIfTL8NDJDM jFpU3BcrYoBOv0HXN761eJCqTUjVldTKkPehOHvsWGBUphdTDRVSwuEHx1SAYyehvfj5kncz59m F/qOFtch4e0mMI= X-Received: by 2002:a05:690c:6905:b0:81e:97c9:bcf7 with SMTP id 00721157ae682-81ec0167c80mr68242497b3.71.1784181880199; Wed, 15 Jul 2026 23:04:40 -0700 (PDT) Received: from ?IPV6:2600:1700:566e:ba00:6d29:5fc7:266a:e62a? ([2600:1700:566e:ba00:6d29:5fc7:266a:e62a]) by smtp.gmail.com with ESMTPSA id 00721157ae682-81e6bf58f85sm187966347b3.18.2026.07.15.23.04.38 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 15 Jul 2026 23:04:39 -0700 (PDT) Sender: Julian Braha Message-ID: Date: Thu, 16 Jul 2026 07:04:37 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] Documentation: warn users not to use select on choice options in Kconfig To: Kees Cook Cc: nathan@kernel.org, nsc@kernel.org, corbet@lwn.net, skhan@linuxfoundation.org, arnd@arndb.de, stefan.hengelein@fau.de, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, nico@fluxnic.net, officialnaumansabir@gmail.com, rdunlap@infradead.org, vegard.nossum@oracle.com, tj@kernel.org References: <20260715220149.48700-1-julianbraha@gmail.com> <202607152119.BF8E377B@keescook> Content-Language: en-US From: Julian Braha In-Reply-To: <202607152119.BF8E377B@keescook> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Hi Kees, On 7/16/26 05:19, Kees Cook wrote: > Yeah, it'd be good to add a checkpatch or even build-time check too. I'll look into adding a check for this into the kconfig interpreter. - Julian Braha