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 X-Spam-Level: X-Spam-Status: No, score=-1.0 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS, UNWANTED_LANGUAGE_BODY autolearn=ham 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 6BA20C4360F for ; Mon, 18 Mar 2019 15:54:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 3C34F20880 for ; Mon, 18 Mar 2019 15:54:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="Llll9qEx" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728049AbfCRPyw (ORCPT ); Mon, 18 Mar 2019 11:54:52 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:45618 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727457AbfCRPwz (ORCPT ); Mon, 18 Mar 2019 11:52:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Content-Type:MIME-Version:References: Subject:Cc:To:From:Date:Message-Id:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=t3kYxm8giI53DptNpjxSYhnDp41d76jBvEiQ982AEE0=; b=Llll9qExMiyNMo68bvH8eK53E9 3SyJ4pszePeJBPOWX6DvgXNz+5gLddRCvZlZiOmm1qUZq4GMC5u+Okvs3cD4RntcqTnglE29Uds71 9hg6Gc1dUjqQA9SOaIfNS3RMnEFIssQVsVYcZhuJjhLVHRwhYAuixiFUMLYupcQl/f6bK/Mv76VjV A4l59f68TP2r+tFMkYXqQj+CA8nbZzqrYBlB/sOMLaimrWse6KYtmVHwIKMec94BPBQVgZzTmoKa7 Y6BVmsSBCuC0lQG5BoUJmInUjzsoPav3IUJ651p+uuV95Le0IXc+prfL1jSnPiGwBZ1oEik/Xf6dd nHTQEBIQ==; Received: from j217100.upc-j.chello.nl ([24.132.217.100] helo=hirez.programming.kicks-ass.net) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1h5uZ9-0006mj-5c; Mon, 18 Mar 2019 15:52:43 +0000 Received: by hirez.programming.kicks-ass.net (Postfix, from userid 0) id BC25925E45D76; Mon, 18 Mar 2019 16:52:38 +0100 (CET) Message-Id: <20190318155141.005287695@infradead.org> User-Agent: quilt/0.65 Date: Mon, 18 Mar 2019 16:38:52 +0100 From: Peter Zijlstra To: torvalds@linux-foundation.org, tglx@linutronix.de, hpa@zytor.com, julien.thierry@arm.com, will.deacon@arm.com, luto@amacapital.net, mingo@kernel.org, catalin.marinas@arm.com, james.morse@arm.com, valentin.schneider@arm.com, brgerst@gmail.com, jpoimboe@redhat.com, luto@kernel.org, bp@alien8.de, dvlasenk@redhat.com Cc: linux-kernel@vger.kernel.org, peterz@infradead.org, dvyukov@google.com, rostedt@goodmis.org Subject: [PATCH 12/25] x86/smap: Ditch __stringify() References: <20190318153840.906404905@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Linus noticed all users of __ASM_STAC/__ASM_CLAC are with __stringify(). Just make them a string. Suggested-by: Linus Torvalds Signed-off-by: Peter Zijlstra (Intel) --- arch/x86/include/asm/smap.h | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) --- a/arch/x86/include/asm/smap.h +++ b/arch/x86/include/asm/smap.h @@ -13,13 +13,12 @@ #ifndef _ASM_X86_SMAP_H #define _ASM_X86_SMAP_H -#include #include #include /* "Raw" instruction opcodes */ -#define __ASM_CLAC .byte 0x0f,0x01,0xca -#define __ASM_STAC .byte 0x0f,0x01,0xcb +#define __ASM_CLAC ".byte 0x0f,0x01,0xca" +#define __ASM_STAC ".byte 0x0f,0x01,0xcb" #ifdef __ASSEMBLY__ @@ -28,10 +27,10 @@ #ifdef CONFIG_X86_SMAP #define ASM_CLAC \ - ALTERNATIVE "", __stringify(__ASM_CLAC), X86_FEATURE_SMAP + ALTERNATIVE "", __ASM_CLAC, X86_FEATURE_SMAP #define ASM_STAC \ - ALTERNATIVE "", __stringify(__ASM_STAC), X86_FEATURE_SMAP + ALTERNATIVE "", __ASM_STAC, X86_FEATURE_SMAP #else /* CONFIG_X86_SMAP */ @@ -49,20 +48,20 @@ static __always_inline void clac(void) { /* Note: a barrier is implicit in alternative() */ - alternative("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP); + alternative("", __ASM_CLAC, X86_FEATURE_SMAP); } static __always_inline void stac(void) { /* Note: a barrier is implicit in alternative() */ - alternative("", __stringify(__ASM_STAC), X86_FEATURE_SMAP); + alternative("", __ASM_STAC, X86_FEATURE_SMAP); } static __always_inline unsigned long smap_save(void) { unsigned long flags; - asm volatile (ALTERNATIVE("", "pushf; pop %0; " __stringify(__ASM_CLAC), + asm volatile (ALTERNATIVE("", "pushf; pop %0; " __ASM_CLAC, X86_FEATURE_SMAP) : "=rm" (flags) : : "memory", "cc"); @@ -77,9 +76,9 @@ static __always_inline void smap_restore /* These macros can be used in asm() statements */ #define ASM_CLAC \ - ALTERNATIVE("", __stringify(__ASM_CLAC), X86_FEATURE_SMAP) + ALTERNATIVE("", __ASM_CLAC, X86_FEATURE_SMAP) #define ASM_STAC \ - ALTERNATIVE("", __stringify(__ASM_STAC), X86_FEATURE_SMAP) + ALTERNATIVE("", __ASM_STAC, X86_FEATURE_SMAP) #else /* CONFIG_X86_SMAP */