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Sun, 8 Apr 2018 20:36:59 -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 4.4 072/162] arm64: pass endianness info to sparse Thread-Topic: [PATCH AUTOSEL for 4.4 072/162] arm64: pass endianness info to sparse Thread-Index: AQHTz5myOU6SHEILQk+uRKLvjTYTsQ== Date: Mon, 9 Apr 2018 00:28:35 +0000 Message-ID: <20180409002738.163941-72-alexander.levin@microsoft.com> References: <20180409002738.163941-1-alexander.levin@microsoft.com> In-Reply-To: <20180409002738.163941-1-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;DM5PR2101MB0885;7:F36gQKHhbSG+31V8wFsmDwD52GxdLloKPWffApEVdURLyyJguc6t7ZeRYZ73dXnmVdRl4oZ908r+MxLMn+51j3e3tHwgK5C6ZkD8aunb52aL8QdYCsL6CUssEbtCl1FICydTSJ3bFH9IWa29fwMCZTSyJjMrK2u0frxFqUzRqndg/v924cztgC71+k3nNRd1nEDNYDD7pyRJLI83PVXpOKj0jsnoR6CxSkelBQwowDLNajhSCt0agLDEppqYT3BS;20:AJrfOeXDal87s9znLyFl1BXrBzb18O8z0Gss8gEc5Y0CJK6lnIR/EYGxoJ3BIaz4iTAiVejlf63ykbii2IDT1084xBOeT+Ue6qBgawbxFVHuWDLRvhM3S30ctCQ0h5eVgtlYiVPpwT9ruW2byCi979Po1zV/0ZcGflq7naPKqwc= x-ms-office365-filtering-ht: Tenant X-MS-Office365-Filtering-Correlation-Id: 347467ca-da5e-4000-23c6-08d59db1ff48 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0885; 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x-microsoft-antispam-message-info: W4CRGzR7DiMwU0Pr20FIFAuxikP6hUa8xg/tPnm1CQluf3wMOTQcXJKMD9ES4FUr/qxcYojW5N5QL5Uu+7mLnltnFY4AFjcWXfssLIiahQ/7L6aytV35BH7ZY7qO8/tgWwnNZCNZK4jwfTZPRkYPCNqFOGTEqMt8Xr70bis6WoBku21tQ/s+T9HXFefTiR51Tk8uvQXrCA6Uzw8bRRAU9LaQkm6/GT/Hps9gg3CNVokjksOugeGTOKTuhRy6swdu9wCwNAk8Gxi3vSsWu2txBEb4L4ieZ6u62KYINPrWmTlop43HATcDL/6i+tdqyNdotUkuNQ1V+rEwMPmgJ3bQ/SG1iovpuLL+3+AI72ZXnT7oOPI0EjdvCe/ktm8toW7QWqz8gcfxJCGQHnO2sgEbTMt6cLS/eRoWdCbASYMstEg= 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: 347467ca-da5e-4000-23c6-08d59db1ff48 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:28:35.9270 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0885 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 119d1885a3c0..95c667328b5d 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -32,10 +32,12 @@ 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 else KBUILD_CPPFLAGS +=3D -mlittle-endian +CHECKFLAGS +=3D -D__AARCH64EL__ AS +=3D -EL LD +=3D -EL endif --=20 2.15.1