From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f54.google.com (mail-ej1-f54.google.com [209.85.218.54]) (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 97DD615B135 for ; Sun, 5 Oct 2025 01:11:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.54 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759626668; cv=none; b=g1Lejf1PBkfT7Gpw4aKm1UA8tek542Ezx9ZqMZEIn/xmHUzbauIBvxVEmuwYJ11U+kj/6nzpZ6xat3wX+gOJDnc97G3EVJdNs1QWLfWzFLHwj9TrgLHWXT0h9niU8S5CMlXF84Rg+SukNcxE1B5Fzv3BAgM2EzIV3Vc7bxp/kVY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759626668; c=relaxed/simple; bh=CaGXHLH/DXwBBr2/jmC0yukKlVcNAe2XnJ4WlAHZj3c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=qzcueh4QmMGOZycTqywEsKPA/Rwn6l1lDS3NEc+FONgkYUpPzbeFe5rkDmjl2Ec0joKzSGM7kkRjWkNXLCA6F761anHWVhBdU1j48uYrz6NFCmP1wYcyDYwlJ/cJ3KSDeqddr93Y3nA/57j60VVHdHEnBTcrK0HHIkdlyn2afdI= 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=da99MFy+; arc=none smtp.client-ip=209.85.218.54 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="da99MFy+" Received: by mail-ej1-f54.google.com with SMTP id a640c23a62f3a-b403bb7843eso746795466b.3 for ; Sat, 04 Oct 2025 18:11:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1759626665; x=1760231465; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=eJyOkytP/4T7QJZkkLYSODGgdQWKJzRCxXSDdPVWq/8=; b=da99MFy+PbMSdweXwWhsDwhN0i59mJA3Cbwr9mx3CuQ15/Z5Nqs8RX1mrD8qLokC45 8bkHC+rUXg8C6MPXo+yjf22tY6o6z7dZD1FH8Mut61rBl/eW9xgWXzHfFINtI3dAXrIt TJa3WBgyQvP1WaEdu9gCG4EDbuhwNEroBFJqChCA7Dv0wHR6bpkYxYmXjnHDohoKGEMr ACNwHwrOiv6a2hNyZN2AJi56l9NIZak/7Lim+XX+c52icwaflqlmRJCOj1lA8LZWetSo 8FlSQlL0iaZ/0YZzZ5/clE0aEZoGRskAVqZ3U+H05ZxbuhkQ+I9PYwL9tijdn5yINm3t QRcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1759626665; x=1760231465; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=eJyOkytP/4T7QJZkkLYSODGgdQWKJzRCxXSDdPVWq/8=; b=nE1gSq49yu6QU2Bal1587P/ViUrKKtuWPy/eNBQwa4AzkzR3PTKy3XZeE8qKjZZngc 6q7cSZMwLGJMTJa7birMzRGkCaaGonUNCa3B8diuII8vTnAzbzc43mwA2A35UVIwVyUK LAo5Iz5s1+XVfwPFX/RiNxso+wh3da8uQYjjOCY+bD91zKS3whjL75XOQntXLHwY5Saz 0VszXthw/khGGsBwDqV1y7EyBz2LUCZIZVwoGb/Yy8c+PTi80g1EfEe5Mrp8940Nl4xp /4ns3wJN/47FLT0foobsrcfouK2HVPXyBovQGjKnhGulmTffq8x8nEkbm5pDVcH9i8GW kgNw== X-Forwarded-Encrypted: i=1; AJvYcCWDLZZgPDbMSzNg3xlQygj3dLJ1OLarGhe9/K8aAVkow69vsuKNIMY09SMoKzl7icT/AYqQ1cMYONOzfoI=@vger.kernel.org X-Gm-Message-State: AOJu0YzJ/t2pWDYD+AhroxDVquVfsoGZoJX2hw+SvqT4IOKnK3kURGAi t2nUmcrYk6eJKF77sT8rMJkkWmujAq+f5S4KyqwubCmrf69gd5jF7tkY X-Gm-Gg: ASbGncvzhP6h6i7cwQE+e2kRv0QW/ylMs4FMV+u+kbUJjGp0EifQALstMJi5XiRBATR F5LF9CRQR8vfaJ9Y7sPnuJdwNJIS/JaESmFV8d3qWN074Rr9q5rX08wCxxQQ+8wSJQsGcebUU3+ ex4oNbOhmKB82AREBKYHfRry/LMQdbRWb7vbTBou/wNgoFKrP7Nsf9nLwySo7wdPvrNXWIA36/a PJaSp8m0eihR0BI/s/6eVUnwxgUmXt2dUIoOnmBuIak+0RuaNAAeMu25NykFf7LsqC+D2qvuMcC 2NWdL32JY/i1ubXUTh+QhC8iFAe0jSr5EZvlKQtm64jqL9qOv9g6ERVdCbSq7tdmYunAbimHDYe +rey5DeoIQWqzuZSjJ4Kh6UatD4yUU5v9DHnbx9qxf7Z/Xm3Zz/wnSXYgiG+8vFKJ X-Google-Smtp-Source: AGHT+IG2JHkZbVmxw0BSVWQUDtAW3CvyW6jcfDbCRqfhUgKCZ1TjqKPOpf4r+o/oGRMoBnsYj084Gg== X-Received: by 2002:a17:907:3c8e:b0:b31:ec30:c678 with SMTP id a640c23a62f3a-b49c525ee7dmr904311866b.57.1759626664728; Sat, 04 Oct 2025 18:11:04 -0700 (PDT) Received: from localhost ([212.73.77.104]) by smtp.gmail.com with UTF8SMTPSA id a640c23a62f3a-b48652a9bf1sm802257166b.13.2025.10.04.18.11.02 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sat, 04 Oct 2025 18:11:04 -0700 (PDT) From: Askar Safin To: thomas.weissschuh@linutronix.de Cc: a.hindborg@kernel.org, alex.gaynor@gmail.com, aliceryhl@google.com, bjorn3_gh@protonmail.com, boqun.feng@gmail.com, dakr@kernel.org, gary@garyguo.net, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, lossin@kernel.org, nathan@kernel.org, nicolas.schier@linux.dev, ojeda@kernel.org, rust-for-linux@vger.kernel.org, tmgross@umich.edu Subject: Re: [PATCH v2 6/6] kbuild: enable -Werror for hostprogs Date: Sun, 5 Oct 2025 04:10:47 +0300 Message-ID: <20251005011100.1035272-1-safinaskar@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20250814-kbuild-werror-v2-6-c01e596309d2@linutronix.de> References: <20250814-kbuild-werror-v2-6-c01e596309d2@linutronix.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit "Thomas Weißschuh" : > Enable -Werror unconditionally Please, drop this patch. Never enable -Werror unconditionally for any part of build. I often bisect Linux. And to do this, I often need to build very old Linux commits (with modern compiler). Unconditional -Werror will make this impossible. For example, recently I found this regression: https://lore.kernel.org/regressions/197f290e30b.eaadc7bc7913.7315623184036672946@zohomail.com/T/#u The regression caused by commits happened in 2019. So to bisect it, I had to build 2019 trees using modern compiler. -- Askar Safin