From nobody Mon Apr 6 09:19:40 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 54DE63F787B; Fri, 20 Mar 2026 19:39:14 +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=1774035554; cv=none; b=RvdLHak/ZVX6ziMJ5Wv6jVx7SgSyQN8BBOf3uY7cOWMuS/PskVLngSu+t5GVLD3N6IjYeOpNSr73ATMfgdAKQS17QcdsHOfE0e5Dw0irvIjcyYWUJ6d8EGMnnw3CmMVn3XlTuZnotPA2DtcQjg9r7Dgn2UN3pVUGzAQ9Jknb9o8= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774035554; c=relaxed/simple; bh=LrLBS64c+lmBUJM2XbvLHLJnGjK9/zMfbb5TL2UTCws=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=b+dtNaoe9PI54VhWbmlcYYOYGDgGlBG3i+mbe8lQzaPKLrMYffp/pKP8QpSfwT7PSUpqIlEGHlhaCxkthlAip2nDMafRekYnAArOnD0VFOKuY3wnYtHkABTXbu6pxz5pzWv3NmEORqE1qMaIzptEurST25/5lKDg/gKmScG9j54= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=n9G5Rfle; 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="n9G5Rfle" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 75CADC2BC9E; Fri, 20 Mar 2026 19:39:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1774035553; bh=LrLBS64c+lmBUJM2XbvLHLJnGjK9/zMfbb5TL2UTCws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=n9G5RfleSKlgF5IOVA2zXMw7RB/0EsB8jsXdwJANrb3vkQfRndWlRknI8JoQlRPuv zgCX6aDwrYZVTz75jLr+KIPFYcBrUDvMT9XX7hAb4vlckyEtjaKsjouuzE4QE6Dcl1 o2HwpJagChgQY9sNvxa2V3D81uvsfl9/SrEthaNA3o+Sr88oot/AuaCYgDeBFOySyl q6XeWSPRQJ3LJkLYxCqrpBHPF/1/0pG+jUNSe8+4vHsB1eeoQfAb1rWhYw6UW/7T+1 OvSzcnuLb+EqzJMxiNiIU7Wkgy6v68h8V5rWxiRLmLjJMLfpRprBXEC9xhv69y4Xd8 BPa+YjeIoj8Pg== 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 v4 12/25] tools/testing/vma: test that legacy flag helpers work correctly Date: Fri, 20 Mar 2026 19:38:29 +0000 Message-ID: <3374e50053adb65818fde948ae3488e1e29ae8b1.1774034900.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