From patchwork Tue May 16 15:45:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 13243340 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 57A95C7EE25 for ; Tue, 16 May 2023 15:47:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234127AbjEPPrY (ORCPT ); Tue, 16 May 2023 11:47:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41008 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234115AbjEPPrX (ORCPT ); Tue, 16 May 2023 11:47:23 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3CBF9EC2; Tue, 16 May 2023 08:46:59 -0700 (PDT) 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 D40DB63278; Tue, 16 May 2023 15:46:20 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0851EC433A0; Tue, 16 May 2023 15:46:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1684251980; bh=RmbFIhpMNElq8ZkpNfEGRuhnV3uNnxxGxG17h/UHJGw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=atImyQCL9jgkPIb7HW0By+bWCRzkUSWQ8RVamtL4cFJzOUPUmO+faoEujXoK+Si5a zx2WlozINWvxSz+xwAglfp8G2uB9FBan4qsDVnAWPBUU1vD+GoUszoNWjHVLtiVcPZ UujkQhv8ULrWuc2TGKi16vpgj2Qq+iUlbtprJqAH/3/j1+uc26xynSbh5cU035CW+I cFfcdAfxPiJuLxjgiKfthyG2t8VGJX//4ONUV6834gMa0UYqdWF9H8tVGctW3+O3kz WNOxNYFvjg+BA+yjighlvpQOozjJF4UwCQM7YuQ1RIqh4yYcXfA7sB0hFK3lHZAjVr nPQW6GxUJD41w== From: Arnd Bergmann To: Russell King Cc: Arnd Bergmann , Steven Rostedt , Masami Hiramatsu , Mark Rutland , Oleg Nesterov , "Rafael J. Wysocki" , Pavel Machek , Linus Walleij , Ard Biesheuvel , Kees Cook , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-trace-kernel@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 01/16] ARM: dma-mapping: hide unused dma_contiguous_early_fixup function Date: Tue, 16 May 2023 17:45:50 +0200 Message-Id: <20230516154605.517690-2-arnd@kernel.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230516154605.517690-1-arnd@kernel.org> References: <20230516154605.517690-1-arnd@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Arnd Bergmann The dma_contiguous_early_fixup() function is a global __weak stub with an arm specific override, but the declaration is in an #ifdef. If CONFIG_DMA_CMA is disabled, there is no caller and no prototype, which adds a warning for the definition: arm/mm/dma-mapping.c:261:13: error: no previous prototype for 'dma_contiguous_early_fixup' [-Werror=missing-prototypes] Enclose the definition in the same #ifdef as the prototype to avoid that and save a few bytes of .init.text. Signed-off-by: Arnd Bergmann --- arch/arm/mm/dma-mapping.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index b4a33358d2e9..bc4ed5ce3e00 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -258,12 +258,14 @@ static struct dma_contig_early_reserve dma_mmu_remap[MAX_CMA_AREAS] __initdata; static int dma_mmu_remap_num __initdata; +#ifdef CONFIG_DMA_CMA void __init dma_contiguous_early_fixup(phys_addr_t base, unsigned long size) { dma_mmu_remap[dma_mmu_remap_num].base = base; dma_mmu_remap[dma_mmu_remap_num].size = size; dma_mmu_remap_num++; } +#endif void __init dma_contiguous_remap(void) {