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 9A4BFC19F2A for ; Sun, 7 Aug 2022 22:23:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242241AbiHGWXm (ORCPT ); Sun, 7 Aug 2022 18:23:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56628 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234943AbiHGWXT (ORCPT ); Sun, 7 Aug 2022 18:23:19 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 151FB1FCFF; Sun, 7 Aug 2022 15:10:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:In-Reply-To:References; bh=x4+1SyuBnrsfLH3HBApRgaK+TGzqaCKJHHZnZyL8QS8=; b=nu/cBWDS99rOTqn80qBNQjT8uK XOac2xWsTFDD6kBvHa9wYsprv1AqpHPZKL4PmsfGHE5hCfXSv/H8H2/teaAbY+TDBirmg9n1wxjOt 6PdTk8pOpKx963XwOBtwXdCEF/4LB6zLW4LEWT29np7gUmbCZy5XsE18f0XwWGyFjka9nVaKLAyQf lXghFir0KRS6W6jQBOwRu9XqavxA58iXNUINdo/muia/uZRyQ/jEiLzO/wZ7k6yCQaJcLxf4tza4y 3XHJG3eJKKEptiHDJTINiY8H4vKwk/7gtGxgrVrM8Yrj1kw6eopKjPQ5+wOImhQoVfu8+W6IO3HKs uBNZ2e8g==; Received: from [2601:1c0:6280:3f0::a6b3] (helo=casper.infradead.org) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1oKoSq-00DL2b-E7; Sun, 07 Aug 2022 22:09:40 +0000 From: Randy Dunlap To: linux-kernel@vger.kernel.org Cc: Randy Dunlap , Arnd Bergmann , Josh Triplett , Paul Walmsley , Palmer Dabbelt , Albert Ou , linux-riscv@lists.infradead.org, linux-api@vger.kernel.org, Andrew Morton , linux-mm@kvack.org Subject: [PATCH v2] kernel/sys_ni: add compat entry for fadvise64_64 Date: Sun, 7 Aug 2022 15:09:34 -0700 Message-Id: <20220807220934.5689-1-rdunlap@infradead.org> X-Mailer: git-send-email 2.37.1 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org When CONFIG_ADVISE_SYSCALLS is not set/enabled and CONFIG_COMPAT is set/enabled, the riscv compat_syscall_table references 'compat_sys_fadvise64_64', which is not defined: riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:(.rodata+0x6f8): undefined reference to `compat_sys_fadvise64_64' Add 'fadvise64_64' to kernel/sys_ni.c as a conditional COMPAT function so that when CONFIG_ADVISE_SYSCALLS is not set, there is a fallback function available. Fixes: d3ac21cacc24 ("mm: Support compiling out madvise and fadvise") Signed-off-by: Randy Dunlap Suggested-by: Arnd Bergmann Cc: Josh Triplett Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: linux-riscv@lists.infradead.org Cc: Arnd Bergmann Cc: linux-api@vger.kernel.org Cc: Andrew Morton Cc: linux-mm@kvack.org --- v2: patch kernel/sys_ni.c (for any arch) instead of arch/riscv's unistd.h (Arnd) kernel/sys_ni.c | 1 + 1 file changed, 1 insertion(+) --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -277,6 +277,7 @@ COND_SYSCALL(landlock_restrict_self); /* mm/fadvise.c */ COND_SYSCALL(fadvise64_64); +COND_SYSCALL_COMPAT(fadvise64_64); /* mm/, CONFIG_MMU only */ COND_SYSCALL(swapon);