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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 12/20] tools/testing/vma: test that legacy flag helpers work correctly Date: Thu, 12 Mar 2026 19:16:10 +0000 Message-ID: <63f3217453d4797a7ad4705d438a4f8dcbaf1062.1773342102.git.ljs@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: EA15120003 X-Stat-Signature: 5rkw36wffdqx8ck69cguht6ua4n5hj1g X-Rspam-User: X-HE-Tag: 1773343024-225647 X-HE-Meta: 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 fgcVAIq4 hpBbKICQJ22jc6w2rCWjUG5EQQzutsbZl3JDHi2ac1F9xNo1XXt2+llMo0wsgjtry+VQ4Ofmiuv2b/HeB2iTV+z28iS/R98BWp7my1UgcMcLzTqgokcWT15xWJue+qqoncTDz8UeDnGlwTQ828kFheRD6QyXpGaPvR42LKXMa3WixC0dwtHG285bb2AOM5iXxasj93kamgws9J24uk5yYyX4Q4qs0O3nouizjDNmB5vnibmoB/RmDXABQDtiL73YBOWC0WGbI1vSdJYwOII7RkkRU9PMjTankZ5JVfUmBAJLsKezz1s6Os75a8Q== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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, vma_flags_t flags) const unsigned long legacy_val = legacy_flags; /* The lower word should contain the precise same value. */ const unsigned long flags_lower = flags.__vma_flags[0]; + vma_flags_t converted_flags; #if NUM_VMA_FLAG_BITS > BITS_PER_LONG int i; @@ -17,6 +18,11 @@ static bool compare_legacy_flags(vm_flags_t legacy_flags, vma_flags_t flags) static_assert(sizeof(legacy_flags) == sizeof(unsigned long)); + /* Assert that legacy flag helpers work correctly. */ + converted_flags = 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 == flags_lower; } -- 2.53.0