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[209.132.180.67]) by mx.google.com with ESMTP id ys4si40518024pac.68.2015.09.29.15.18.30; Tue, 29 Sep 2015 15:18:30 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756437AbbI2WS2 (ORCPT + 30 others); Tue, 29 Sep 2015 18:18:28 -0400 Received: from mail-bl2on0059.outbound.protection.outlook.com ([65.55.169.59]:20413 "EHLO na01-bl2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754942AbbI2WRp (ORCPT ); Tue, 29 Sep 2015 18:17:45 -0400 Received: from localhost (91.78.158.8) by CO2PR07MB619.namprd07.prod.outlook.com (10.141.228.151) with Microsoft SMTP Server (TLS) id 15.1.274.16; Tue, 29 Sep 2015 22:17:38 +0000 From: Yury Norov To: , , , , , CC: , , , , , Yury Norov Subject: [PATCH v5 14/23] arm64:ilp32 use the native LP64 'start_thread' for ILP32 threads Date: Wed, 30 Sep 2015 01:14:11 +0300 Message-ID: <1443564860-31208-15-git-send-email-ynorov@caviumnetworks.com> X-Mailer: git-send-email 2.1.4 In-Reply-To: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> References: <1443564860-31208-1-git-send-email-ynorov@caviumnetworks.com> MIME-Version: 1.0 X-Originating-IP: [91.78.158.8] X-ClientProxiedBy: AM3PR07CA0029.eurprd07.prod.outlook.com (10.141.45.157) To CO2PR07MB619.namprd07.prod.outlook.com (10.141.228.151) X-Microsoft-Exchange-Diagnostics: 1; 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X-Original-Sender: linux-kernel-owner@vger.kernel.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of patch+caf_=patchwork-forward=linaro.org@linaro.org designates 209.85.215.53 as permitted sender) smtp.mailfrom=patch+caf_=patchwork-forward=linaro.org@linaro.org Mailing-list: list patchwork-forward@linaro.org; contact patchwork-forward+owners@linaro.org X-Google-Group-Id: 836684582541 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , From: Andrew Pinski If we have both ILP32 and AARCH32 compiled in, we need use the non compat start thread for ILP32. Signed-off-by: Philipp Tomsich Signed-off-by: Christoph Muellner Signed-off-by: Yury Norov diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index f1bba0c..d766f29 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -28,6 +28,7 @@ #ifdef __KERNEL__ #include +#include #include #include @@ -123,6 +124,15 @@ static inline void start_thread(struct pt_regs *regs, unsigned long pc, static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { +#ifdef CONFIG_ARM64_ILP32 + /* ILP32 thread are started the same way as LP64 threads. + Note we cannot use is_ilp32_compat_task here as that + would introduce a header depency issue. */ + if (test_thread_flag(TIF_32BIT_AARCH64)) { + start_thread(regs, pc, sp); + return; + } +#endif start_thread_common(regs, pc); regs->pstate = COMPAT_PSR_MODE_USR; if (pc & 1)