From patchwork Mon Apr 12 08:55:45 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12197211 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 67EDBC43461 for ; Mon, 12 Apr 2021 09:02:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 375E56134F for ; Mon, 12 Apr 2021 09:02:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239112AbhDLJC1 (ORCPT ); Mon, 12 Apr 2021 05:02:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38300 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238482AbhDLI7A (ORCPT ); Mon, 12 Apr 2021 04:59:00 -0400 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 420AAC06135D; Mon, 12 Apr 2021 01:56:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender :Reply-To:Content-Type:Content-ID:Content-Description; bh=jWmjzQUHpJ1xkkWfcaQONup4Uc7cZh1Z29idzzFHs4A=; b=W+HyDjO59Vez0n1rF5+OJJbAa6 2tcXS7iHtWltbW6Dj69LRjZ2Mh1pEMgUsG+iN9rTU8+8JJKWnRtYmmWU3hVA0cLA8GI0HzM5dv6xz BrmU5+adMGjiW7juH0PTiEGZZr2cmTlE9f6XKF82TqeIMLmCRZkrPPcxNeleLCnNb+URi3Thx8ABG zhYl8xIGuii9kbtVjxSm1kTb1O3qk5UQEMRKua5qG3EXA82zFtEhU6StAJkiqzokTrKtHa3uS0Hl6 mTe+1kbZNAmCLwoS3/PO5+SSx/fjeifXHsFcNPdsTthiU3nfkBtmTqkyy4vLqc/RmFvU28MVCvRpY sd4hyvUg==; Received: from [2001:4bb8:199:e2bd:3218:1918:85d1:2852] (helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94 #2 (Red Hat Linux)) id 1lVsMT-0060Fm-2x; Mon, 12 Apr 2021 08:56:01 +0000 From: Christoph Hellwig To: Catalin Marinas , Will Deacon , Thomas Bogendoerfer , "James E.J. Bottomley" , Helge Deller , Michael Ellerman , Heiko Carstens , Vasily Gorbik , Christian Borntraeger , "David S. Miller" , x86@kernel.org, Arnd Bergmann Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-s390@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH 5/5] compat: consolidate the compat_flock{,64} definition Date: Mon, 12 Apr 2021 10:55:45 +0200 Message-Id: <20210412085545.2595431-6-hch@lst.de> X-Mailer: git-send-email 2.30.1 In-Reply-To: <20210412085545.2595431-1-hch@lst.de> References: <20210412085545.2595431-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Provide a single common definition for the compat_flock and compat_flock64 structures using the same tricks as for the native variants. An extra define is added for the packing required on x86. Signed-off-by: Christoph Hellwig --- arch/arm64/include/asm/compat.h | 16 ---------------- arch/mips/include/asm/compat.h | 19 ++----------------- arch/parisc/include/asm/compat.h | 16 ---------------- arch/powerpc/include/asm/compat.h | 16 ---------------- arch/s390/include/asm/compat.h | 16 ---------------- arch/sparc/include/asm/compat.h | 18 +----------------- arch/x86/include/asm/compat.h | 20 +++----------------- include/linux/compat.h | 31 +++++++++++++++++++++++++++++++ 8 files changed, 37 insertions(+), 115 deletions(-) diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index a5fe4558a6ecc0..6f0908606b2b51 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -66,22 +66,6 @@ struct compat_stat { compat_ulong_t __unused4[2]; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; - struct compat_statfs { int f_type; int f_bsize; diff --git a/arch/mips/include/asm/compat.h b/arch/mips/include/asm/compat.h index a13436e91c3938..7df384e445de06 100644 --- a/arch/mips/include/asm/compat.h +++ b/arch/mips/include/asm/compat.h @@ -50,23 +50,8 @@ struct compat_stat { s32 st_pad4[14]; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - s32 l_sysid; - compat_pid_t l_pid; - s32 pad[4]; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; +#define __ARCH_COMPAT_FLOCK_EXTRA_SYSID s32 l_sysid; +#define __ARCH_COMPAT_FLOCK_PAD s32 pad[4]; struct compat_statfs { int f_type; diff --git a/arch/parisc/include/asm/compat.h b/arch/parisc/include/asm/compat.h index 1a609d38f6678e..972bf8911d1126 100644 --- a/arch/parisc/include/asm/compat.h +++ b/arch/parisc/include/asm/compat.h @@ -54,22 +54,6 @@ struct compat_stat { u32 st_spare4[3]; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; - struct compat_statfs { s32 f_type; s32 f_bsize; diff --git a/arch/powerpc/include/asm/compat.h b/arch/powerpc/include/asm/compat.h index b0f2c3f7fe45a5..e9d433bd561725 100644 --- a/arch/powerpc/include/asm/compat.h +++ b/arch/powerpc/include/asm/compat.h @@ -48,22 +48,6 @@ struct compat_stat { u32 __unused4[2]; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; - struct compat_statfs { int f_type; int f_bsize; diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h index e0896758779da4..5578607913b847 100644 --- a/arch/s390/include/asm/compat.h +++ b/arch/s390/include/asm/compat.h @@ -103,22 +103,6 @@ struct compat_stat { u32 __unused5; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -}; - struct compat_statfs { u32 f_type; u32 f_bsize; diff --git a/arch/sparc/include/asm/compat.h b/arch/sparc/include/asm/compat.h index 4524997424043f..16fa333f28c274 100644 --- a/arch/sparc/include/asm/compat.h +++ b/arch/sparc/include/asm/compat.h @@ -76,23 +76,7 @@ struct compat_stat64 { unsigned int __unused5; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; - short __unused; -}; - -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; - short __unused; -}; +#define __ARCH_COMPAT_FLOCK_PAD short __unused; struct compat_statfs { int f_type; diff --git a/arch/x86/include/asm/compat.h b/arch/x86/include/asm/compat.h index b1691cf148be10..d8e01bf51e7a26 100644 --- a/arch/x86/include/asm/compat.h +++ b/arch/x86/include/asm/compat.h @@ -51,25 +51,11 @@ struct compat_stat { u32 __unused5; }; -struct compat_flock { - short l_type; - short l_whence; - compat_off_t l_start; - compat_off_t l_len; - compat_pid_t l_pid; -}; - /* - * IA32 uses 4 byte alignment for 64 bit quantities, - * so we need to pack this structure. + * IA32 uses 4 byte alignment for 64 bit quantities, so we need to pack the + * compat flock64 structure. */ -struct compat_flock64 { - short l_type; - short l_whence; - compat_loff_t l_start; - compat_loff_t l_len; - compat_pid_t l_pid; -} __attribute__((packed)); +#define __ARCH_NEED_COMPAT_FLOCK64_PACKED struct compat_statfs { int f_type; diff --git a/include/linux/compat.h b/include/linux/compat.h index 6e65be75360321..9d196f8a94d5ea 100644 --- a/include/linux/compat.h +++ b/include/linux/compat.h @@ -258,6 +258,37 @@ struct compat_rlimit { compat_ulong_t rlim_max; }; +#ifdef __ARCH_NEED_COMPAT_FLOCK64_PACKED +#define __ARCH_COMPAT_FLOCK64_PACK __attribute__((packed)) +#else +#define __ARCH_COMPAT_FLOCK64_PACK +#endif + +struct compat_flock { + short l_type; + short l_whence; + compat_off_t l_start; + compat_off_t l_len; +#ifdef __ARCH_COMPAT_FLOCK_EXTRA_SYSID + __ARCH_COMPAT_FLOCK_EXTRA_SYSID +#endif + compat_pid_t l_pid; +#ifdef __ARCH_COMPAT_FLOCK_PAD + __ARCH_COMPAT_FLOCK_PAD +#endif +}; + +struct compat_flock64 { + short l_type; + short l_whence; + compat_loff_t l_start; + compat_loff_t l_len; + compat_pid_t l_pid; +#ifdef __ARCH_COMPAT_FLOCK64_PAD + __ARCH_COMPAT_FLOCK64_PAD +#endif +} __ARCH_COMPAT_FLOCK64_PACK; + struct compat_rusage { struct old_timeval32 ru_utime; struct old_timeval32 ru_stime;