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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 1F0FEC3A589 for ; Tue, 20 Aug 2019 13:46:30 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DC11222DD6 for ; Tue, 20 Aug 2019 13:46:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566308790; bh=1fivXv3Xy+71BjwYr1CKkSmG40mAsuBQnNFjG4WErMs=; h=From:To:Cc:Subject:Date:List-ID:From; b=aF68MvMyTB4C3/wVl1mG+qX4Azx0FqlP8zyWwkfQExqPAKTF6gNSIBZ387fYPyEC2 //DvO3wkeKVMYnY4LoypLO667V4NtHw7XEUNrrPYBt7LH0YvNqdg4nJBsBJIHleyP2 slYzRFOHAXEhS0HaaNwf+rLpyFfhsNHi6zuH0Yao= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730185AbfHTNmQ (ORCPT ); Tue, 20 Aug 2019 09:42:16 -0400 Received: from mail.kernel.org ([198.145.29.99]:37474 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730557AbfHTNmP (ORCPT ); Tue, 20 Aug 2019 09:42:15 -0400 Received: from sasha-vm.mshome.net (unknown [12.236.144.82]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3F43822DD6; Tue, 20 Aug 2019 13:42:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1566308535; bh=1fivXv3Xy+71BjwYr1CKkSmG40mAsuBQnNFjG4WErMs=; h=From:To:Cc:Subject:Date:From; b=D88kYfj7ve81YUFW6rq42wsZa7RujQ1kXkQTM96D+hq9O9fv/5TWoHLH3+Pr+rBkJ zvudiUfdMXWFhCCNm/QbFvrRRLDrLOTbyxkjQUx0JEh7CXZWXXpekxd6TNjNG44FmP sgw4yvcp6A/KqzlPGSy15FGde7HGDt7kzCLgERlg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Arnd Bergmann , Nathan Chancellor , Linus Walleij , Vinod Koul , Sasha Levin , dmaengine@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH AUTOSEL 4.19 01/27] dmaengine: ste_dma40: fix unneeded variable warning Date: Tue, 20 Aug 2019 09:41:47 -0400 Message-Id: <20190820134213.11279-1-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: dmaengine-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Arnd Bergmann [ Upstream commit 5d6fb560729a5d5554e23db8d00eb57cd0021083 ] clang-9 points out that there are two variables that depending on the configuration may only be used in an ARRAY_SIZE() expression but not referenced: drivers/dma/ste_dma40.c:145:12: error: variable 'd40_backup_regs' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration] static u32 d40_backup_regs[] = { ^ drivers/dma/ste_dma40.c:214:12: error: variable 'd40_backup_regs_chan' is not needed and will not be emitted [-Werror,-Wunneeded-internal-declaration] static u32 d40_backup_regs_chan[] = { Mark these __maybe_unused to shut up the warning. Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20190712091357.744515-1-arnd@arndb.de Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/ste_dma40.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c index f4edfc56f34ef..3d55405c49cac 100644 --- a/drivers/dma/ste_dma40.c +++ b/drivers/dma/ste_dma40.c @@ -142,7 +142,7 @@ enum d40_events { * when the DMA hw is powered off. * TODO: Add save/restore of D40_DREG_GCC on dma40 v3 or later, if that works. */ -static u32 d40_backup_regs[] = { +static __maybe_unused u32 d40_backup_regs[] = { D40_DREG_LCPA, D40_DREG_LCLA, D40_DREG_PRMSE, @@ -211,7 +211,7 @@ static u32 d40_backup_regs_v4b[] = { #define BACKUP_REGS_SZ_V4B ARRAY_SIZE(d40_backup_regs_v4b) -static u32 d40_backup_regs_chan[] = { +static __maybe_unused u32 d40_backup_regs_chan[] = { D40_CHAN_REG_SSCFG, D40_CHAN_REG_SSELT, D40_CHAN_REG_SSPTR, -- 2.20.1