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 9E8792C324D; Thu, 23 Apr 2026 13:40:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776951657; cv=none; b=bQsDbMmpfmoj/9YgwzVEi7PMf97oK4zNqhZgiL7HYsZAItbEoZM2zm51U2kerPgHqlQKLEsRhZ1/Juns1pTSUMXCc22mHXTXiPhIA3itlB+FA7EhqeTTr92DoT1fstL5wnKxZAfl8td0utxqTs8LopGtRUXcG2HBi9IKZBXn/Zw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1776951657; c=relaxed/simple; bh=kbWYQRsR8eQbjfcpNar2gN24mlB/zcQ4Jq7F4eLQ/Uc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pZkQV19pDrNMPnGbphsdplSQHcWHuxP6UJuF6NHBAbiyGRx201aDkkcb13hl49xBYDW1ZmDOXRlYL7tsIi7q4P+PjMDnQtlMUS0HTIcc1Ny15bKUNN/iQ1+Zq2g9OPh0DLQYLsQwDpjwF0FzF4pww+w+v5i4xydIiIm3ehTCrMo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qSik5BHf; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="qSik5BHf" Received: by smtp.kernel.org (Postfix) with ESMTPSA id B232FC2BCAF; Thu, 23 Apr 2026 13:40:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1776951657; bh=kbWYQRsR8eQbjfcpNar2gN24mlB/zcQ4Jq7F4eLQ/Uc=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=qSik5BHfRphh2+WjtZepWBi4tvNmWs2K9X0HsY158a72I4wEXP/zDzX7OGztTjMID YTBrg6eAyLBVPV0O56eE64aIInKUMiIIvDNoulwi1sNg4SWYfMQeupj5Ru47d1wVhq 7B8r6BfCsnNt8k51tLr27tGM6yZfyWSTmsTDzdBGoUP2vx96dwjAWyyzK02mdsMdE+ ElTqWsYVt6G+6JLMeL8Bf7pZc0O1Qk0LiEw82/HYfIg84XI3uDJCO9TxFYL9cHOU15 Zlkg4uwAUQ8KvPKE7TJlVop0cABYlqfZkWzYotm03+C3gZHyeroevKOf9fqsQPIlRb N4F836PPel5pg== Message-ID: Date: Thu, 23 Apr 2026 15:40:51 +0200 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 v3 2/2] selftests/mm: suppress compiler error in liburing check To: Li Wang , akpm@linux-foundation.org, ljs@kernel.org, Liam.Howlett@oracle.com, vbabka@kernel.org, rppt@kernel.org, surenb@google.com, mhocko@suse.com, shuah@kernel.org Cc: linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260422080446.26020-1-wangli.ahau@gmail.com> <20260422080446.26020-3-wangli.ahau@gmail.com> From: "David Hildenbrand (Arm)" Content-Language: en-US Autocrypt: addr=david@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 4/22/26 10:04, Li Wang wrote: > When building the mm selftests on a system without liburing development > headers, check_config.sh leaks a raw compiler error: > > /tmp/tmp.kIIOIqwe3n.c:2:10: fatal error: liburing.h: No such file or directory > 2 | #include > | ^~~~~~~~~~~~ > > Since this is an expected failure during the configuration probe, > redirect the compiler output to /dev/null to hide it. > > And the build system prints a clear warning when this occurs: > > Warning: missing liburing support. Some tests will be skipped. > > Because the user is properly notified about the missing dependency, the > raw compiler error is redundant and only confuse users. > > Additionally, update the Makefile to use $(Q) and $(call msg,...) for > the check_config.sh execution. This aligns the probe with standard > kbuild output formatting, providing a clean "CHK" message instead of > printing the raw command during the build. > > Signed-off-by: Li Wang > --- Thanks! Tested-by: David Hildenbrand (Arm) Acked-by: David Hildenbrand (Arm) -- Cheers, David