From nobody Mon Apr 6 18:53:34 2026 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 4E02B3EDAB5; Wed, 18 Mar 2026 15:51:14 +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=1773849075; cv=none; b=e8btSergDQlkewA4U8Ygl3UC7JFVrQYlqK4bOTgWTurNKqA3Ko55y5yFoeSe7SHS+C+FiL+AKrO7PEASBXdexz0s2UIKkkxsZ3HRYve8szKixwHETlm5smIG0cjrjKADwL5dqJMC9SDSnKneTNYAdKE6FEt88GztiRTKTmXlgm0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773849075; c=relaxed/simple; bh=LrLBS64c+lmBUJM2XbvLHLJnGjK9/zMfbb5TL2UTCws=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GBf5fZgparHHMOZE1zlXSweeYjy7E8UZMU5JBOPHFJfFT358l9hMjKwmGj3yBOq/2lPs/hBNTs/d4C6nWnBHYwS8imcUIPeNXlm+UO9bqsunbk+gFebZR6RDWXQDnXMr2j6c9DodmirtBMowgXY/cjoZnsjbqd3+7i8igTD2wRw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PAMV/FRG; 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="PAMV/FRG" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C3F1CC2BCB3; Wed, 18 Mar 2026 15:51:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773849074; bh=LrLBS64c+lmBUJM2XbvLHLJnGjK9/zMfbb5TL2UTCws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=PAMV/FRG9PjgQCw7QyBV6vAY5/1tkgmucdPKe6bNfQcaayUFlcPcWUrRM5+pumUew 8tkdQO0XR039wEdB/Z+kBm+nVhTMS+y+FEWY9areaHD6j2ywMX1H//6cVHsmdp6ujF M8CROXi20fKoT1AdSl0ZdsL1KeupVrZxCUxOLYtB6/K8aGzLF9/ZuGPeCnm1biPoS7 zf9JSM2o7s+qHRM/dDXx7XJX5zWvE/ctttO/iWCDZFKpArYUsCJ2Cods/BYOCBUPcY ldo+q78sUAKXxMqnxurIx0JfoKd2+Sc8PBn+lOt6KAxcWcmrMIXNNY1urbuV+cISbL 5HToCgJWlqsdQ== From: "Lorenzo Stoakes (Oracle)" To: Andrew Morton Cc: David Hildenbrand , "Liam R . Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , Mike Rapoport , Suren Baghdasaryan , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, Vineet Gupta , Russell King , Catalin Marinas , Will Deacon , Brian Cain , Huacai Chen , WANG Xuerui , Thomas Bogendoerfer , Dinh Nguyen , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , Christophe Leroy , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Heiko Carstens , Vasily Gorbik , Alexander Gordeev , Christian Borntraeger , Sven Schnelle , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H . Peter Anvin" , Richard Weinberger , Anton Ivanov , Johannes Berg , Alexander Viro , Christian Brauner , Jan Kara , Xu Xin , Chengming Zhou , Michal Hocko , Paul Moore , Stephen Smalley , Ondrej Mosnacek , linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-hexagon@vger.kernel.org, loongarch@lists.linux.dev, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-um@lists.infradead.org, linux-fsdevel@vger.kernel.org, selinux@vger.kernel.org Subject: [PATCH v3 12/23] tools/testing/vma: test that legacy flag helpers work correctly Date: Wed, 18 Mar 2026 15:50:23 +0000 Message-ID: <4bbead202fcd419239913a61de769b209aa298fd.1773846935.git.ljs@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Update the existing compare_legacy_flags() predicate function to assert that legacy_to_vma_flags() and vma_flags_to_legacy() behave as expected. Signed-off-by: Lorenzo Stoakes (Oracle) --- tools/testing/vma/tests/vma.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/tools/testing/vma/tests/vma.c b/tools/testing/vma/tests/vma.c index 98e465fb1bf2..1fae25170ff7 100644 --- a/tools/testing/vma/tests/vma.c +++ b/tools/testing/vma/tests/vma.c @@ -5,6 +5,7 @@ static bool compare_legacy_flags(vm_flags_t legacy_flags, v= ma_flags_t flags) const unsigned long legacy_val =3D legacy_flags; /* The lower word should contain the precise same value. */ const unsigned long flags_lower =3D flags.__vma_flags[0]; + vma_flags_t converted_flags; #if NUM_VMA_FLAG_BITS > BITS_PER_LONG int i; =20 @@ -17,6 +18,11 @@ static bool compare_legacy_flags(vm_flags_t legacy_flags= , vma_flags_t flags) =20 static_assert(sizeof(legacy_flags) =3D=3D sizeof(unsigned long)); =20 + /* Assert that legacy flag helpers work correctly. */ + converted_flags =3D legacy_to_vma_flags(legacy_flags); + ASSERT_FLAGS_SAME_MASK(&converted_flags, flags); + ASSERT_EQ(vma_flags_to_legacy(flags), legacy_flags); + return legacy_val =3D=3D flags_lower; } =20 --=20 2.53.0