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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CD9B6C433F5 for ; Tue, 9 Nov 2021 02:33:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BC08B61350 for ; Tue, 9 Nov 2021 02:33:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235794AbhKICg1 (ORCPT ); Mon, 8 Nov 2021 21:36:27 -0500 Received: from mail.kernel.org ([198.145.29.99]:51660 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236255AbhKICgZ (ORCPT ); Mon, 8 Nov 2021 21:36:25 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8D86D61288; Tue, 9 Nov 2021 02:33:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1636425220; bh=RjE5RxYsZU9Qh+HrmBiXf3gnXhHo5ONjJcPje1h75CE=; h=Date:From:To:Subject:In-Reply-To:From; b=asm+jQl0Var3gGkzYVyiohkhRdFoaRDlZjFqA79ga/uAdpDETUWajFCLTGFC9lgz0 75eVqEdwJSqgiH3PvpC+RqDqnvpq9V4R2ZwSKpiGaPnn07OIf9lY2Wt5dVZfrHcetn oISo6a11o1SD4OrlYDo7c6AC3BZo0ydPEdS6OWMs= Date: Mon, 08 Nov 2021 18:33:40 -0800 From: Andrew Morton To: adobriyan@gmail.com, akpm@linux-foundation.org, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 43/87] ELF: simplify STACK_ALLOC macro Message-ID: <20211109023340.BlCjvnGzu%akpm@linux-foundation.org> In-Reply-To: <20211108183057.809e428e841088b657a975ec@linux-foundation.org> User-Agent: s-nail v14.8.16 Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: Alexey Dobriyan Subject: ELF: simplify STACK_ALLOC macro "A -= B; A" is equivalent to "A -= B". Link: https://lkml.kernel.org/r/YVmcP256fRMqCwgK@localhost.localdomain Signed-off-by: Alexey Dobriyan Signed-off-by: Andrew Morton --- fs/binfmt_elf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/fs/binfmt_elf.c~elf-simplify-stack_alloc-macro +++ a/fs/binfmt_elf.c @@ -156,7 +156,7 @@ static int padzero(unsigned long elf_bss #define STACK_ADD(sp, items) ((elf_addr_t __user *)(sp) - (items)) #define STACK_ROUND(sp, items) \ (((unsigned long) (sp - items)) &~ 15UL) -#define STACK_ALLOC(sp, len) ({ sp -= len ; sp; }) +#define STACK_ALLOC(sp, len) (sp -= len) #endif #ifndef ELF_BASE_PLATFORM _