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 4850EC77B7F for ; Wed, 17 May 2023 13:14:10 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4QLtq45k1hz3fFy for ; Wed, 17 May 2023 23:14:08 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=KeFwGIi3; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=kernel.org (client-ip=2604:1380:4641:c500::1; helo=dfw.source.kernel.org; envelope-from=arnd@kernel.org; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=KeFwGIi3; dkim-atps=neutral Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) (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 4QLtmX1zTYz3f4m for ; Wed, 17 May 2023 23:11:56 +1000 (AEST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9BFB364710; Wed, 17 May 2023 13:11:54 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CFB3FC433A0; Wed, 17 May 2023 13:11:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684329114; bh=9B5dm6uPcP99pu9DbgwVzUA/R+xqpwJ+x8zkV0/Vqc0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KeFwGIi38GKw31XBFip9DpSNaAPrSt+ly1tSHZlHJrUQWVYjO1Fj/sEgW+9BoVS0P 1CrH3z3kj7gZ+Vr3uvhUt8V+7wc31EPrn9XE0ouppLIc4CVNNyDqrxV3hSyS0OYCcT l6bP27FiyG5vaBbcs1CEMoLgy4FK3NoP8/k/lHQ4NbbcS554m3wfxgTcIxR8LnL/1k w4FDAsAOVUKikEub9HmaUUnNVrFTBKOFClJ6tqzPc8F5THSvUHsl1wW7KSrODpL1Hc vIHWM9fXWcirhdtfcUUfuWVrVUe5drsdLKZft1YCHcGKupFyIGgZk3oWSTFEILf4s7 1sLZ52Eo3Zk7g== From: Arnd Bergmann To: Andrew Morton Subject: [PATCH 02/14] mm: page_poison: always declare __kernel_map_pages() function Date: Wed, 17 May 2023 15:10:50 +0200 Message-Id: <20230517131102.934196-3-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230517131102.934196-1-arnd@kernel.org> References: <20230517131102.934196-1-arnd@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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: linux-kselftest@vger.kernel.org, "Rafael J. Wysocki" , Peter Zijlstra , Catalin Marinas , linux-mips@vger.kernel.org, linux-mm@kvack.org, Pavel Machek , Christoph Lameter , Will Deacon , linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, Paul Moore , linux-sh@vger.kernel.org, Helge Deller , x86@kernel.org, Russell King , Ingo Molnar , Dennis Zhou , Boqun Feng , Arnd Bergmann , linux-pm@vger.kernel.org, Heiko Carstens , Waiman Long , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, kunit-dev@googlegroups.com, Michal Simek , Thomas Bogendoerfer , linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org, Eric Paris , audit@vger.kernel.org, Palmer Dabbelt , Tejun Heo , linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Arnd Bergmann The __kernel_map_pages() function is mainly used for CONFIG_DEBUG_PAGEALLOC, but has a number of architecture specific definitions that may also be used in other configurations, as well as a global fallback definition for architectures that do not support DEBUG_PAGEALLOC. When the option is disabled, any definitions without the prototype cause a warning: mm/page_poison.c:102:6: error: no previous prototype for '__kernel_map_pages' [-Werror=missing-prototypes] The function is a trivial nop here, so just declare it anyway to avoid the warning. Signed-off-by: Arnd Bergmann --- include/linux/mm.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/include/linux/mm.h b/include/linux/mm.h index 27ce77080c79..e95d7c575ea6 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3453,13 +3453,12 @@ static inline bool debug_pagealloc_enabled_static(void) return static_branch_unlikely(&_debug_pagealloc_enabled); } -#ifdef CONFIG_DEBUG_PAGEALLOC /* * To support DEBUG_PAGEALLOC architecture must ensure that * __kernel_map_pages() never fails */ extern void __kernel_map_pages(struct page *page, int numpages, int enable); - +#ifdef CONFIG_DEBUG_PAGEALLOC static inline void debug_pagealloc_map_pages(struct page *page, int numpages) { if (debug_pagealloc_enabled_static()) -- 2.39.2