From mboxrd@z Thu Jan 1 00:00:00 1970 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 747211A2C06 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=mrdNIwpzdFwknqrwbAi48CIS1WoIFvsWWtrX5vNluGbj0YUqrqXtrmNnZCUJHKvafPEAbpfUEXMQ2xzyA6GxQLGNf6rQ+d6GtR4OIkVDO2//zqqF3qNhyyO3xsiYBwZRg/SZNhai8Wrcy1410CFdebox90o3K+qa6lmqMw5tYps= 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=lj2YUkz+; 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="lj2YUkz+" Received: by mail-yb1-f201.google.com with SMTP id 3f1490d57ef6-e02b58759c2so9681333276.3 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=1719271735; x=1719876535; 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=lj2YUkz+6BbU3CtVtmDBgEn/AyEwck95YPAoY7NjZrq/xYTfkTkmUSoGhGaS39L6HQ 6xnPXupoE6sxrB7vMxI9E6p+gXHRhTrv47fHIKzit3szMOUo4yOkdxN5DMsV/DRtF+87 6dFNnCm/PF7O0/7vpf2NXoh/gBFsJVu38onMci+8YzlrSUIEX/QlOP8K/nLFldNVOEO3 Z6CIT/oLvxPWvPnGvoUVtLr7tdvsJn72XlqRkRxfuH/L/emchZ38ofpfk7cn5z0Ohmuy TAZ64LV9oDbfL7XwyfODiEhplgU0JGnSj54K/vuIvRQk3JdW6pK5AM9OuA0AOzk7VFU9 V9Tw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719271735; x=1719876535; 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=IjZWWnTv56Az7uHIcFtqNzUjtj500LOy5/qCYrg4XyfRUxmQfRHNVJnlXMDAu3rgrU nWGQVexZVxD8ABLVVVo0EG/cFdcCNiyQNCojb+mGJtxezKsieA4Y9VSZpQYqPy3n6KBm 4uau77eq31QVMvU6QJT1x4aU7usVz/Ui3PPfcv38zqkK+8E12xJIXJwF3a2muaTXvnON ptE89a7dhDqXPW66crVkhQgUP6Ak65GO+nBNS+RWx4q6u/K6AZX9T/yEowkfWVPzh7M+ KcgNbqs/qoMLomOiIH+7wHZZmv4cCIBnoyZ/A2ffRLemwRaf1Sxh8LR2xyd6NkDdLVFB JXtQ== X-Forwarded-Encrypted: i=1; AJvYcCWOKCmOGe14kWrafbM4nEBGtDcBMJpT/AaZo31mqz5NS23boPtfLvhAA7IU4WRjVq81i8Ooias1ZYnnWHzyOUPSsqH4Fy9/6qsil7oxtg== X-Gm-Message-State: AOJu0YwhIZtY+v9RXmOdM8Hn/TvbCX+KDXZ/FghsLL7RoHOGKcd1IuKy QS/HTPZ/KihJnu7N0p8vJzlrMmd1H/yGM0+j0vZNOl/Glqd/WZrwOiwADUgLaHfeLSISsoaZXom /1Q== 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-fsdevel@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=20Almeida?=" , 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 Content-Type: text/plain; charset="UTF-8" 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