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Removes the macros and includes linux/mman.h instead. Signed-off-by: Edward Liaw Reviewed-by: Carlos Llamas Reviewed-by: Muhammad Usama Anjum Reviewed-by: Muhammad Usama Anjum --- tools/testing/selftests/mm/thuge-gen.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/tools/testing/selftests/mm/thuge-gen.c b/tools/testing/selftes= ts/mm/thuge-gen.c index ea7fd8fe2876..034635317935 100644 --- a/tools/testing/selftests/mm/thuge-gen.c +++ b/tools/testing/selftests/mm/thuge-gen.c @@ -15,6 +15,7 @@ =20 #define _GNU_SOURCE 1 #include +#include #include #include #include @@ -28,10 +29,6 @@ #include "vm_util.h" #include "../kselftest.h" =20 -#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) -#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) -#define MAP_HUGE_SHIFT 26 -#define MAP_HUGE_MASK 0x3f #if !defined(MAP_HUGETLB) #define MAP_HUGETLB 0x40000 #endif --=20 2.45.1.467.gbab1589fc0-goog From nobody Thu Feb 12 23:04:15 2026 Received: from mail-yw1-f202.google.com (mail-yw1-f202.google.com [209.85.128.202]) (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 521241607BD for ; 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Wed, 05 Jun 2024 15:36:53 -0700 (PDT) Date: Wed, 5 Jun 2024 22:36:35 +0000 In-Reply-To: <20240605223637.1374969-1-edliaw@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240605223637.1374969-1-edliaw@google.com> X-Mailer: git-send-email 2.45.1.467.gbab1589fc0-goog Message-ID: <20240605223637.1374969-3-edliaw@google.com> Subject: [PATCH v1 2/2] selftests/mm: Guard defines from shm From: Edward Liaw To: shuah@kernel.org, Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Andrew Morton Cc: cmllamas@google.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, kernel-team@android.com, Edward Liaw , llvm@lists.linux.dev, linux-mm@kvack.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" thuge-gen.c defines SHM_HUGE_* macros that are provided by the uapi since 4.14. These macros get redefined when compiling with Android's bionic because its sys/shm.h will import the uapi definitions. However if linux/shm.h is included, with glibc, sys/shm.h will clash on some struct definitions: /usr/include/linux/shm.h:26:8: error: redefinition of =E2=80=98struct shm= id_ds=E2=80=99 26 | struct shmid_ds { | ^~~~~~~~ In file included from /usr/include/x86_64-linux-gnu/bits/shm.h:45, from /usr/include/x86_64-linux-gnu/sys/shm.h:30: /usr/include/x86_64-linux-gnu/bits/types/struct_shmid_ds.h:24:8: note: or= iginally defined here 24 | struct shmid_ds | ^~~~~~~~ For now, guard the SHM_HUGE_* defines with ifndef to prevent redefinition warnings on Android bionic. Signed-off-by: Edward Liaw Reviewed-by: Carlos Llamas Reviewed-by: Muhammad Usama Anjum --- tools/testing/selftests/mm/thuge-gen.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tools/testing/selftests/mm/thuge-gen.c b/tools/testing/selftes= ts/mm/thuge-gen.c index 034635317935..d50dc71cac32 100644 --- a/tools/testing/selftests/mm/thuge-gen.c +++ b/tools/testing/selftests/mm/thuge-gen.c @@ -34,10 +34,18 @@ #endif =20 #define SHM_HUGETLB 04000 /* segment will use huge TLB pages */ +#ifndef SHM_HUGE_SHIFT #define SHM_HUGE_SHIFT 26 +#endif +#ifndef SHM_HUGE_MASK #define SHM_HUGE_MASK 0x3f +#endif +#ifndef SHM_HUGE_2MB #define SHM_HUGE_2MB (21 << SHM_HUGE_SHIFT) +#endif +#ifndef SHM_HUGE_1GB #define SHM_HUGE_1GB (30 << SHM_HUGE_SHIFT) +#endif =20 #define NUM_PAGESIZES 5 #define NUM_PAGES 4 --=20 2.45.1.467.gbab1589fc0-goog