netdev - Re: [PATCH v1 00/10] Define _GNU

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Message-ID: <be921714-b684-401e-a89a-8256df5fcb86@collabora.com>
Date: Wed, 1 May 2024 10:40:47 +0500
From: Muhammad Usama Anjum <usama.anjum@...labora.com>
To: Mark Brown <broonie@...nel.org>, Edward Liaw <edliaw@...gle.com>
Cc: Muhammad Usama Anjum <usama.anjum@...labora.com>, shuah@...nel.org,
 Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
 Jiri Kosina <jikos@...nel.org>, Benjamin Tissoires <bentiss@...nel.org>,
 Sean Christopherson <seanjc@...gle.com>, Paolo Bonzini
 <pbonzini@...hat.com>, Bongsu Jeon <bongsu.jeon@...sung.com>,
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
 Alexandre Belloni <alexandre.belloni@...tlin.com>,
 Jarkko Sakkinen <jarkko@...nel.org>,
 Dave Hansen <dave.hansen@...ux.intel.com>,
 Andrew Morton <akpm@...ux-foundation.org>, linux-kernel@...r.kernel.org,
 linux-kselftest@...r.kernel.org, kernel-team@...roid.com,
 linux-sound@...r.kernel.org, linux-input@...r.kernel.org,
 kvm@...r.kernel.org, netdev@...r.kernel.org, linux-rtc@...r.kernel.org,
 linux-sgx@...r.kernel.org
Subject: Re: [PATCH v1 00/10] Define _GNU_SOURCE for sources using

Thanks for the fixes.

On 5/1/24 6:59 AM, Mark Brown wrote:
> On Tue, Apr 30, 2024 at 11:50:09PM +0000, Edward Liaw wrote:
>> 809216233555 ("selftests/harness: remove use of LINE_MAX") introduced
>> asprintf into kselftest_harness.h, which is a GNU extension and needs
>> _GNU_SOURCE to either be defined prior to including headers or with the
>> -D_GNU_SOURCE flag passed to the compiler.
> 
> This seems like something that should be handled centrally rather than
> having to go round and audit the users every time some update is made.
The easiest way I could think of is to add -D_GNU_SOURCE to KHDR_HEADERS
definition in tools/testing/selftests/Makefile. It wouldn't be obvious from
KHDR_HEADERS name that there could be other flags in it as well though.

-- 
BR,
Muhammad Usama Anjum