From patchwork Mon Jun 24 23:26:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Edward Liaw X-Patchwork-Id: 13710246 Received: from mail-yb1-f201.google.com (mail-yb1-f201.google.com [209.85.219.201]) (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 E43B01A2C14 for ; Mon, 24 Jun 2024 23:28:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.219.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719271738; cv=none; b=LFhfY1L2VnxHyOcQ00z9HaWkxeo48/XmkwMzDYECwREAw0RVE+kLusnY2XiuFO8RfqKU0c3C6JyuzAo8okfsvVEHOyPfDTX2Yj2mYu2huFPeqmmw6xext9Px/c9MydIJ0YYljy6+VQr66FaXNuuC59PlqWBMfeQctComkav3wHI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719271738; c=relaxed/simple; bh=PoyedOSrLslMpcZQkdr7wxw6LDAVWLOCZchvs+PQ4E0=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=QFnsk7wz65IFLjKapB9DWJIsK548vdFTOrs4mU+mc0iX7DrYdlZchfUvLGi5zJB0M1fU9texBMuIaRQdIEA+sWIqZ+JzvMTBQtIhQUUGU6n8/uDp3RL0djzX+KI/pNEzwlOARYksLbo3vq0Winj839DMHP0AZmLfGeudIRmgr3Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edliaw.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=dgjwStqp; arc=none smtp.client-ip=209.85.219.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edliaw.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="dgjwStqp" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-e02b58759c2so9681342276.3 for ; Mon, 24 Jun 2024 16:28:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1719271736; x=1719876536; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=FEnvDY+YQtOlDLldfWY9bO5cHBXotclBQZRJTAhLrGQ=; b=dgjwStqpJK2cevyFHSqu82OowcDEUjS8BXpZhl0dqSJZwjKmAHE6Zt2BWb3AMmkf66 UW6rL3FncfNPWL2flTT6rP3XRmxsQKYJLVIQhMh9CeQifzA8puyrttkYt/KANShPdXpj u6y817H09ijBYdBTY2wrYpzrCdr21uJqejv4uPRE0bJ9pLn3dq8LHBP7SZ6pnizft7Pl s1xycHgo4J8z0D/1o1ufNRMTqKusvEQAgmC6ZSwMDNyjD+7tuc50KRNnAMisyY7w1sb4 AjNApIRFtg09/FCD2LI6poJmOHd4eTdWjTsSUpF91UWUNmJqdTTL9CIFGSOVZwVhjmfG VGcQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719271736; x=1719876536; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=FEnvDY+YQtOlDLldfWY9bO5cHBXotclBQZRJTAhLrGQ=; b=wyiNS8fRuANtoU/upmE7d6D0bxMhIxmZJJfHzH9m6/PIh82j/Xp5j9RIiPgcQsSlto m85G85S80BwUDoq4A+rOvtXiHOKKTvNCskLhQRz+O6EAE7fIiwF3bmQzpdMXDWd2kahv r4wa/FcVtc+bvLBIFUFdvCAUKav0uJ6zmLcJfI+BqV50NxZg9KsBuF+Xv2gtJ2i+tp0Q O7PzmuesbNCIfBLkjddL9O9rIfRwFFTYCc1dVe7xovehBCNa5m1fY9yCvI8+oPjcv9dQ kuvDsxo2LM38Gvjutm/3mpef7JGV3+mK/HeXep6y6cWZzdt7Uv2gIu0NXfZ9BBWt4aCj YPag== X-Gm-Message-State: AOJu0YwmRcW1ecngo/Itx2ZO/eGjh7ZZKNL6BETkoshJdv/14/2aSOIw wsI/rcFTf74LOfLZMndvrgaWz9Yd9n1UsQtqu+Phfj7X4iDYhLf2YW3G5Wi/uA0yRXURnEiXBg4 Oi5w2et/7LUWO5K0/G9ParsVnUg5AIRBByiVYXTLGQIoyXZw/x0n462TElHR0ehyaND9mGeW/im j5B0WIoqpYdfkPP0UMj8n5d3jvRQjyz76zNrEykuE6tvV8 X-Google-Smtp-Source: AGHT+IGo0nBr4OMWeDQdXO7gLmA8943vaa7AUjGpvpzDg1f7Z8BrI79oFtF9sCT7oXO1KDCB6pUDmCcxQng= X-Received: from edliaw.c.googlers.com ([fda3:e722:ac3:cc00:24:72f4:c0a8:305d]) (user=edliaw job=sendgmr) by 2002:a05:6902:1081:b0:dff:4788:ea88 with SMTP id 3f1490d57ef6-e0303d692f7mr20462276.0.1719271735356; Mon, 24 Jun 2024 16:28:55 -0700 (PDT) Date: Mon, 24 Jun 2024 23:26:09 +0000 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.45.2.741.gdbec12cfda-goog Message-ID: <20240624232718.1154427-1-edliaw@google.com> Subject: [PATCH v6 00/13] Centralize _GNU_SOURCE definition into lib.mk From: Edward Liaw To: linux-kselftest@vger.kernel.org, Eric Biederman , Kees Cook , Shuah Khan , Thomas Gleixner , Ingo Molnar , Peter Zijlstra , Darren Hart , Davidlohr Bueso , " =?utf-8?q?Andr=C3=A9_Almeida?= " , Jason Gunthorpe , Kevin Tian , Paolo Bonzini , Andrew Morton , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Fenghua Yu , Reinette Chatre , Paul Walmsley , Palmer Dabbelt , Albert Ou , Jarkko Sakkinen , Dave Hansen Cc: linux-kernel@vger.kernel.org, usama.anjum@collabora.com, seanjc@google.com, kernel-team@android.com, Edward Liaw , linux-mm@kvack.org, iommu@lists.linux.dev, kvm@vger.kernel.org, netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-riscv@lists.infradead.org, linux-sgx@vger.kernel.org Centralizes the definition of _GNU_SOURCE into lib.mk and addresses all resulting macro redefinition warnings. These patches will need to be merged in one shot to avoid redefinition warnings. The initial attempt at this patch was abandoned because it affected lines in many source files and caused a large amount of churn. However, from earlier discussions, centralizing _GNU_SOURCE is still desireable. This attempt limits the changes to 1 source file and 12 Makefiles. v1: https://lore.kernel.org/linux-kselftest/20240430235057.1351993-1-edliaw@google.com/ v2: https://lore.kernel.org/linux-kselftest/20240507214254.2787305-1-edliaw@google.com/ - Add -D_GNU_SOURCE to KHDR_INCLUDES so that it is in a single location. - Remove #define _GNU_SOURCE from source code to resolve redefinition warnings. v3: https://lore.kernel.org/linux-kselftest/20240509200022.253089-1-edliaw@google.com/ - Rebase onto linux-next 20240508. - Split patches by directory. - Add -D_GNU_SOURCE directly to CFLAGS in lib.mk. - Delete additional _GNU_SOURCE definitions from source code in linux-next. - Delete additional -D_GNU_SOURCE flags from Makefiles. v4: https://lore.kernel.org/linux-kselftest/20240510000842.410729-1-edliaw@google.com/ - Rebase onto linux-next 20240509. - Remove Fixes tag from patches that drop _GNU_SOURCE definition. - Restore space between comment and includes for selftests/damon. v5: https://lore.kernel.org/linux-kselftest/20240522005913.3540131-1-edliaw@google.com/ - Rebase onto linux-next 20240521 - Drop initial patches that modify KHDR_INCLUDES. - Incorporate Mark Brown's patch to replace static_assert with warning. - Don't drop #define _GNU_SOURCE from nolibc and wireguard. - Change Makefiles for x86 and vDSO to append to CFLAGS. v6: - Rewrite patch to use -D_GNU_SOURCE= form in lib.mk. - Reduce the amount of churn significantly by allowing definition to coexist with source code macro defines. Edward Liaw (13): selftests/mm: Define _GNU_SOURCE to an empty string selftests: Add -D_GNU_SOURCE= to CFLAGS in lib.mk selftests/net: Append to lib.mk CFLAGS in Makefile selftests/exec: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/futex: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/intel_pstate: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/iommu: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/kvm: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/proc: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/resctrl: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/ring-buffer: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/riscv: Drop redundant -D_GNU_SOURCE CFLAGS in Makefile selftests/sgx: Append CFLAGS from lib.mk to HOST_CFLAGS tools/testing/selftests/exec/Makefile | 1 - tools/testing/selftests/futex/functional/Makefile | 2 +- tools/testing/selftests/intel_pstate/Makefile | 2 +- tools/testing/selftests/iommu/Makefile | 2 -- tools/testing/selftests/kvm/Makefile | 2 +- tools/testing/selftests/lib.mk | 3 +++ tools/testing/selftests/mm/thuge-gen.c | 2 +- tools/testing/selftests/net/Makefile | 2 +- tools/testing/selftests/net/tcp_ao/Makefile | 2 +- tools/testing/selftests/proc/Makefile | 1 - tools/testing/selftests/resctrl/Makefile | 2 +- tools/testing/selftests/ring-buffer/Makefile | 1 - tools/testing/selftests/riscv/mm/Makefile | 2 +- tools/testing/selftests/sgx/Makefile | 2 +- 14 files changed, 12 insertions(+), 14 deletions(-) --- 2.45.2.741.gdbec12cfda-goog