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Sun, 8 Apr 2018 20:30:36 -0400 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Luc Van Oostenryck , Catalin Marinas , Will Deacon , "linux-arm-kernel@lists.infradead.org" , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 146/293] arm64: pass endianness info to sparse Thread-Topic: [PATCH AUTOSEL for 4.9 146/293] arm64: pass endianness info to sparse Thread-Index: AQHTz5kqEJjZeBYDU0+UFEjK1aG7Yg== Date: Mon, 9 Apr 2018 00:24:47 +0000 Message-ID: <20180409002239.163177-146-alexander.levin@microsoft.com> References: <20180409002239.163177-1-alexander.levin@microsoft.com> In-Reply-To: <20180409002239.163177-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0807;7:xFMDZmlRVAzDZFurWDWW552ohq88Lcqhq/i/pu67W45ufWCks53sg8ekptnKf712Hbdd914QQUXSrVicyyDoIWukZQV+bo5ONcwLDXznLYMz/Hg7tqXMKq/DCQctYmS6wKF+cubvkVIdPeZoesJ6SbdTvAejQWBXd6vt966o41Ebt58nJqpgO/W9wpuMkAQwITb5bmq2Zgzma/KD99lKQf6qSEbULQ+9j1CHvK0NCZXDz4BBVqA12DqO3ENHtyRl;20:60FIFHctz/Ir7gMSnKhdzeaqgbOJRWzTTkONyRiY2xS/iPWXQB/yv7HkxNEd2nIMNqqd5vjWDtCuINl2tSFYT0I3sPyNvhqLNc0DyaBMd5ohkYnMh7RfBzc8Uy+qU82ttymGP9Y5WwcWreP0eBY0HdRlbP0mTfDJyOfZBS0snpw= x-ms-office365-filtering-ht: Tenant X-MS-Office365-Filtering-Correlation-Id: e153207d-6775-4f8a-f9cc-08d59db11a5f x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0807; 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x-microsoft-antispam-message-info: WQzL4koK2EM7Q5K/XeO/1gofuwH1rucFctUOAxV598BRn0birZglIL6AP455k8GQOX4fm2wQBT9QjNKRC6b4gZa1OYMTvqchwsPvqUZWFW07EmSfwflG+f6jyoRqg+3DxXgCUOA1GeeAWc+6rfWtbkUj8+xSZVVYE4HAgqSEC1Z9dihjUF4JYCEpTNsCV/iQURYVBVzHuhK8ueiZmboOCgylmv+z21JVmYWELAaO+w2VXI24p2/RYCMsxnp7ysce5Pdsj8QMcB7z2KU4FLrSo/aPPbmM7jqZUluUT6Y7VsChxwmMxkzpf7xX5QzYj7GqQ4wuhYVKF+J1bCF2OFSK+CWYSPHrTYA/fTaZgiY7nOopgY6q/+bxYkn4pmr6+knDilpjReX9bn8Llwwop8KOmlxh7ltddStFDpqx9iFPYAQ= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: e153207d-6775-4f8a-f9cc-08d59db11a5f X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:24:47.7376 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0807 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Luc Van Oostenryck [ Upstream commit bcde519e8c325f3cc1fcf443eb6466e6bb3a3aca ] ARM64 depends on the macro __AARCH64EB__ being defined or not to correctly select or define endian-specific macros, structures or pieces of code. This macro is predefined by the compiler but sparse knows nothing about it and thus may pre-process files differently from what gcc would. Fix this by passing '-D__AARCH64EL__' or '-D__AARCH64EB__' to sparse depending of the endianness of the kernel, like defined by GCC. Note: In most case it won't change anything since most arm64 use little-endian (but an allyesconfig would use big-endian!). CC: Catalin Marinas CC: Will Deacon CC: linux-arm-kernel@lists.infradead.org Signed-off-by: Luc Van Oostenryck Signed-off-by: Will Deacon Signed-off-by: Sasha Levin --- arch/arm64/Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index bc66f4b6a1cb..b0babc09577d 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -48,11 +48,13 @@ KBUILD_AFLAGS +=3D $(lseinstr) =20 ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS +=3D -mbig-endian +CHECKFLAGS +=3D -D__AARCH64EB__ AS +=3D -EB LD +=3D -EB UTS_MACHINE :=3D aarch64_be else KBUILD_CPPFLAGS +=3D -mlittle-endian +CHECKFLAGS +=3D -D__AARCH64EL__ AS +=3D -EL LD +=3D -EL UTS_MACHINE :=3D aarch64 --=20 2.15.1