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=-2.6 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 05B56C76194 for ; Mon, 22 Jul 2019 14:26:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C979721951 for ; Mon, 22 Jul 2019 14:25:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563805559; bh=wuhTsZIObGWDG2QzWvOgk7IFTgkRJ2Atch9ilONi/HI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:List-ID:From; b=PC23O3UBQyxQS3AhU24gMsOI8wHDo6OXwf7btzEbV92YkZLpciBNHAeKmuEa/i8p4 1ykUWvCQ/0IwcAJaufgbL1tFJIoaqpG7q13QbS93kyhbwAfA2T8xHo4vYRd/z8AkU7 HX19Jg7UbIJcinw5F+eB/WKKhhwXE6Q48xpO0nMc= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730829AbfGVOZ7 (ORCPT ); Mon, 22 Jul 2019 10:25:59 -0400 Received: from mail.kernel.org ([198.145.29.99]:54876 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725907AbfGVOZ6 (ORCPT ); Mon, 22 Jul 2019 10:25:58 -0400 Received: from localhost (unknown [223.226.98.106]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 623302171F; Mon, 22 Jul 2019 14:25:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1563805558; bh=wuhTsZIObGWDG2QzWvOgk7IFTgkRJ2Atch9ilONi/HI=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=roEaUJSgM2YJgzNoyPsqezUm4dic3X2NV9saH90TLvV0rPQj8PbmHyLhvcEMzafLT Hk8pK8aLzQsEQGfsN4cr+47FuIMEzSlhs9LsUGGWeZq7EhDDIOdPvKvxUDWGK4Olk+ 0bjK+thA1SDg8vh99WIJ/AYSYY5qjPLsuW0fvdpg= Date: Mon, 22 Jul 2019 19:54:45 +0530 From: Vinod Koul To: Arnd Bergmann Cc: Linus Walleij , linux-arm-kernel@lists.infradead.org, dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: Re: [PATCH] dma: ste_dma40: fix unneeded variable warning Message-ID: <20190722142445.GV12733@vkoul-mobl.Dlink> References: <20190712091357.744515-1-arnd@arndb.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190712091357.744515-1-arnd@arndb.de> User-Agent: Mutt/1.11.3 (2019-02-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 12-07-19, 11:13, Arnd Bergmann wrote: > 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. Applied, thanks -- ~Vinod