From patchwork Wed Jun 7 20:15:18 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 13271203 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 05D0EC7EE25 for ; Wed, 7 Jun 2023 20:20:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232361AbjFGUUF (ORCPT ); Wed, 7 Jun 2023 16:20:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44522 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233051AbjFGUT4 (ORCPT ); Wed, 7 Jun 2023 16:19:56 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EC5A52708; Wed, 7 Jun 2023 13:19:34 -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 34351642FE; Wed, 7 Jun 2023 20:19:06 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1E6FAC433EF; Wed, 7 Jun 2023 20:19:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1686169145; bh=kT3jh64tJMjQU7tzukJRwEmX2q6UV7BbOXCt0kxTlVk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nUXX0nU7+WR5RdD6Vt42fokrffbpEcxiMRRDrHUmeyF12dNkF43N9E08ks6eeaQQU vWBE3DFtsjvQlLVLk/JFgdzGUa+CB724x4ZuAfpjk5f4in2IqeV4yrOEozVrgmWeMz oqfRnHi8hExQUIJMvwFsyBg4Yg2AQFrnwhqDuEWs= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Randy Dunlap , Jaswinder Singh , Boojin Kim , Krzysztof Kozlowski , Russell King , Vinod Koul , dmaengine@vger.kernel.org, linux-riscv@lists.infradead.org, Sasha Levin Subject: [PATCH 4.14 04/61] dmaengine: pl330: rename _start to prevent build error Date: Wed, 7 Jun 2023 22:15:18 +0200 Message-ID: <20230607200836.680552722@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230607200835.310274198@linuxfoundation.org> References: <20230607200835.310274198@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: dmaengine@vger.kernel.org From: Randy Dunlap [ Upstream commit a1a5f2c887252dec161c1e12e04303ca9ba56fa9 ] "_start" is used in several arches and proably should be reserved for ARCH usage. Using it in a driver for a private symbol can cause a build error when it conflicts with ARCH usage of the same symbol. Therefore rename pl330's "_start" to "pl330_start_thread" so that there is no conflict and no build error. drivers/dma/pl330.c:1053:13: error: '_start' redeclared as different kind of symbol 1053 | static bool _start(struct pl330_thread *thrd) | ^~~~~~ In file included from ../include/linux/interrupt.h:21, from ../drivers/dma/pl330.c:18: arch/riscv/include/asm/sections.h:11:13: note: previous declaration of '_start' with type 'char[]' 11 | extern char _start[]; | ^~~~~~ Fixes: b7d861d93945 ("DMA: PL330: Merge PL330 driver into drivers/dma/") Fixes: ae43b3289186 ("ARM: 8202/1: dmaengine: pl330: Add runtime Power Management support v12") Signed-off-by: Randy Dunlap Cc: Jaswinder Singh Cc: Boojin Kim Cc: Krzysztof Kozlowski Cc: Russell King Cc: Vinod Koul Cc: dmaengine@vger.kernel.org Cc: linux-riscv@lists.infradead.org Link: https://lore.kernel.org/r/20230524045310.27923-1-rdunlap@infradead.org Signed-off-by: Vinod Koul Signed-off-by: Sasha Levin --- drivers/dma/pl330.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index a8cea236099a1..982b69d017cda 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -1041,7 +1041,7 @@ static bool _trigger(struct pl330_thread *thrd) return true; } -static bool _start(struct pl330_thread *thrd) +static bool pl330_start_thread(struct pl330_thread *thrd) { switch (_state(thrd)) { case PL330_STATE_FAULT_COMPLETING: @@ -1584,7 +1584,7 @@ static int pl330_update(struct pl330_dmac *pl330) thrd->req_running = -1; /* Get going again ASAP */ - _start(thrd); + pl330_start_thread(thrd); /* For now, just make a list of callbacks to be done */ list_add_tail(&descdone->rqd, &pl330->req_done); @@ -1974,7 +1974,7 @@ static void pl330_tasklet(unsigned long data) } else { /* Make sure the PL330 Channel thread is active */ spin_lock(&pch->thread->dmac->lock); - _start(pch->thread); + pl330_start_thread(pch->thread); spin_unlock(&pch->thread->dmac->lock); } @@ -1992,7 +1992,7 @@ static void pl330_tasklet(unsigned long data) if (power_down) { pch->active = true; spin_lock(&pch->thread->dmac->lock); - _start(pch->thread); + pl330_start_thread(pch->thread); spin_unlock(&pch->thread->dmac->lock); power_down = false; }