From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 19AE4C433EF for ; Wed, 20 Apr 2022 02:45:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1359029AbiDTCsb (ORCPT ); Tue, 19 Apr 2022 22:48:31 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42806 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1359017AbiDTCsW (ORCPT ); Tue, 19 Apr 2022 22:48:22 -0400 Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9DC2931DFE for ; Tue, 19 Apr 2022 19:45:36 -0700 (PDT) Received: from kwepemi100012.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KjlPs3cQ5zfYqj; Wed, 20 Apr 2022 10:44:49 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by kwepemi100012.china.huawei.com (7.221.188.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:34 +0800 Received: from localhost.localdomain (10.175.112.125) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:32 +0800 From: Tong Tiangen To: Mark Rutland , James Morse , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Robin Murphy , Dave Hansen , Catalin Marinas , Will Deacon , Alexander Viro , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , , "H . Peter Anvin" CC: , , , , Kefeng Wang , Xie XiuQi , Guohanjun , Tong Tiangen Subject: [PATCH -next v4 1/7] x86, powerpc: fix function define in copy_mc_to_user Date: Wed, 20 Apr 2022 03:04:12 +0000 Message-ID: <20220420030418.3189040-2-tongtiangen@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220420030418.3189040-1-tongtiangen@huawei.com> References: <20220420030418.3189040-1-tongtiangen@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Content-Type: text/plain; charset=US-ASCII X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org x86/powerpc has it's implementation of copy_mc_to_user but not use #define to declare. This may cause problems, for example, if other architectures open CONFIG_ARCH_HAS_COPY_MC, but want to use copy_mc_to_user() outside the architecture, the code add to include/linux/uaddess.h is as follows: #ifndef copy_mc_to_user static inline unsigned long __must_check copy_mc_to_user(void *dst, const void *src, size_t cnt) { ... } #endif Then this definition will conflict with the implementation of x86/powerpc and cause compilation errors as follow: Fixes: ec6347bb4339 ("x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()") Signed-off-by: Tong Tiangen --- arch/powerpc/include/asm/uaccess.h | 1 + arch/x86/include/asm/uaccess.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 9b82b38ff867..58dbe8e2e318 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -358,6 +358,7 @@ copy_mc_to_user(void __user *to, const void *from, unsigned long n) return n; } +#define copy_mc_to_user copy_mc_to_user #endif extern long __copy_from_user_flushcache(void *dst, const void __user *src, diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index f78e2b3501a1..e18c5f098025 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -415,6 +415,7 @@ copy_mc_to_kernel(void *to, const void *from, unsigned len); unsigned long __must_check copy_mc_to_user(void *to, const void *from, unsigned len); +#define copy_mc_to_user copy_mc_to_user #endif /* -- 2.25.1 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 92898C433F5 for ; Wed, 20 Apr 2022 02:46:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=S+1p8ae2vAblU690tD4AJjrrSjDrX4ZuEHsSFOtKnxw=; b=AQsfe2RsjxBzcu 0Jx6WOxE2IEzlWdY/zVwbfe42KSVtfMhWzzWoH3SG6afBrVMouaFUQ1UIN1qGBON1aOVCHa1keeRK qis1Lxg2qaILHzpwEYtVbt49QTFykgsPj9yySAI/uJbyc3pnOexDmRsKuND0HfBhL/9XG6l4f+wNn d2TpLkE+cjg0M5H0uTKa0/3elBEgnsYBfxyzBcf+yHIiJEQYYsYVCw8BIJBvykLta5AtyXN7RmesI W6CIgyuhYasMSkKBp4GrF0bMO84ZhyGjoAetfjLxlW7hDLUdMliG22SIheUV4RcJupp6yqyb1iS4W MtlN8nFinMSM066c/8aQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nh0Lo-00707x-0j; Wed, 20 Apr 2022 02:45:52 +0000 Received: from szxga01-in.huawei.com ([45.249.212.187]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nh0LZ-006zxh-Ii for linux-arm-kernel@lists.infradead.org; Wed, 20 Apr 2022 02:45:39 +0000 Received: from kwepemi100012.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KjlPs3cQ5zfYqj; Wed, 20 Apr 2022 10:44:49 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by kwepemi100012.china.huawei.com (7.221.188.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:34 +0800 Received: from localhost.localdomain (10.175.112.125) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:32 +0800 From: Tong Tiangen To: Mark Rutland , James Morse , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Robin Murphy , Dave Hansen , Catalin Marinas , Will Deacon , Alexander Viro , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , , "H . Peter Anvin" CC: , , , , Kefeng Wang , Xie XiuQi , Guohanjun , Tong Tiangen Subject: [PATCH -next v4 1/7] x86, powerpc: fix function define in copy_mc_to_user Date: Wed, 20 Apr 2022 03:04:12 +0000 Message-ID: <20220420030418.3189040-2-tongtiangen@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220420030418.3189040-1-tongtiangen@huawei.com> References: <20220420030418.3189040-1-tongtiangen@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220419_194537_819230_A1B967A7 X-CRM114-Status: GOOD ( 12.75 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org x86/powerpc has it's implementation of copy_mc_to_user but not use #define to declare. This may cause problems, for example, if other architectures open CONFIG_ARCH_HAS_COPY_MC, but want to use copy_mc_to_user() outside the architecture, the code add to include/linux/uaddess.h is as follows: #ifndef copy_mc_to_user static inline unsigned long __must_check copy_mc_to_user(void *dst, const void *src, size_t cnt) { ... } #endif Then this definition will conflict with the implementation of x86/powerpc and cause compilation errors as follow: Fixes: ec6347bb4339 ("x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()") Signed-off-by: Tong Tiangen --- arch/powerpc/include/asm/uaccess.h | 1 + arch/x86/include/asm/uaccess.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 9b82b38ff867..58dbe8e2e318 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -358,6 +358,7 @@ copy_mc_to_user(void __user *to, const void *from, unsigned long n) return n; } +#define copy_mc_to_user copy_mc_to_user #endif extern long __copy_from_user_flushcache(void *dst, const void __user *src, diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index f78e2b3501a1..e18c5f098025 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -415,6 +415,7 @@ copy_mc_to_kernel(void *to, const void *from, unsigned len); unsigned long __must_check copy_mc_to_user(void *to, const void *from, unsigned len); +#define copy_mc_to_user copy_mc_to_user #endif /* -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 8A4ECC433F5 for ; Wed, 20 Apr 2022 04:35:38 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4Kjnsh5cCxz3bfq for ; Wed, 20 Apr 2022 14:35:36 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=huawei.com (client-ip=45.249.212.187; helo=szxga01-in.huawei.com; envelope-from=tongtiangen@huawei.com; receiver=) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4KjlRQ2Rk2z2xCp for ; Wed, 20 Apr 2022 12:46:10 +1000 (AEST) Received: from kwepemi100012.china.huawei.com (unknown [172.30.72.54]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4KjlPs3cQ5zfYqj; Wed, 20 Apr 2022 10:44:49 +0800 (CST) Received: from kwepemm600017.china.huawei.com (7.193.23.234) by kwepemi100012.china.huawei.com (7.221.188.202) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:34 +0800 Received: from localhost.localdomain (10.175.112.125) by kwepemm600017.china.huawei.com (7.193.23.234) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Wed, 20 Apr 2022 10:45:32 +0800 From: Tong Tiangen To: Mark Rutland , James Morse , Andrew Morton , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Robin Murphy , Dave Hansen , Catalin Marinas , Will Deacon , Alexander Viro , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , , "H . Peter Anvin" Subject: [PATCH -next v4 1/7] x86, powerpc: fix function define in copy_mc_to_user Date: Wed, 20 Apr 2022 03:04:12 +0000 Message-ID: <20220420030418.3189040-2-tongtiangen@huawei.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220420030418.3189040-1-tongtiangen@huawei.com> References: <20220420030418.3189040-1-tongtiangen@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.175.112.125] X-ClientProxiedBy: dggems706-chm.china.huawei.com (10.3.19.183) To kwepemm600017.china.huawei.com (7.193.23.234) X-CFilter-Loop: Reflected X-Mailman-Approved-At: Wed, 20 Apr 2022 14:34:53 +1000 X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kefeng Wang , Xie XiuQi , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Tong Tiangen , Guohanjun , linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" x86/powerpc has it's implementation of copy_mc_to_user but not use #define to declare. This may cause problems, for example, if other architectures open CONFIG_ARCH_HAS_COPY_MC, but want to use copy_mc_to_user() outside the architecture, the code add to include/linux/uaddess.h is as follows: #ifndef copy_mc_to_user static inline unsigned long __must_check copy_mc_to_user(void *dst, const void *src, size_t cnt) { ... } #endif Then this definition will conflict with the implementation of x86/powerpc and cause compilation errors as follow: Fixes: ec6347bb4339 ("x86, powerpc: Rename memcpy_mcsafe() to copy_mc_to_{user, kernel}()") Signed-off-by: Tong Tiangen --- arch/powerpc/include/asm/uaccess.h | 1 + arch/x86/include/asm/uaccess.h | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/powerpc/include/asm/uaccess.h b/arch/powerpc/include/asm/uaccess.h index 9b82b38ff867..58dbe8e2e318 100644 --- a/arch/powerpc/include/asm/uaccess.h +++ b/arch/powerpc/include/asm/uaccess.h @@ -358,6 +358,7 @@ copy_mc_to_user(void __user *to, const void *from, unsigned long n) return n; } +#define copy_mc_to_user copy_mc_to_user #endif extern long __copy_from_user_flushcache(void *dst, const void __user *src, diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index f78e2b3501a1..e18c5f098025 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -415,6 +415,7 @@ copy_mc_to_kernel(void *to, const void *from, unsigned len); unsigned long __must_check copy_mc_to_user(void *to, const void *from, unsigned len); +#define copy_mc_to_user copy_mc_to_user #endif /* -- 2.25.1