From patchwork Tue Feb 20 11:55:03 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 128891 Delivered-To: patch@linaro.org Received: by 10.46.124.24 with SMTP id x24csp4559738ljc; Tue, 20 Feb 2018 04:03:49 -0800 (PST) X-Google-Smtp-Source: AH8x225+BbJPFNB6zdz0GLUiEG0bgPAcA3YANhuRIZD++Ti6ifSHxCk0srnanON+dhSQpG0lE9cc X-Received: by 2002:a17:902:7182:: with SMTP id b2-v6mr17091872pll.331.1519128229119; Tue, 20 Feb 2018 04:03:49 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1519128229; cv=none; d=google.com; s=arc-20160816; b=hvWdHt5BQuAms8miEHyTfkHTBzSgr91AmEFenWt9CO3j/zmsNBMtlhx4UZfFi3L8DT YP9oD3RfrK4hvYcUqZq+N9FsiyDXl+++qrxUhdx8Yjxle34vnmzLlENYS7p3AOa+kwsa tKw9LSfLZqsIwZzDcQ5p0R/kKV5h2xud22P+zwjCWdQvY9xd3hd8b3wTHEdngo95zhy0 Wbxe56dk5UHZfMmifCK2FOAW29aL1o3NpFh3kCh+FFeEJwx5Mv0qC5g4Tuz6Fn7M8kYU mmXt4uHxOg3TYzm7X/Luxaiso5yvKQ8E/WjpCfxm+7ER8GhQndr7arbrf4BopGLy7Jzd nquw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:references:in-reply-to:message-id:date :subject:cc:to:from:arc-authentication-results; bh=BSMY3QHYJVeiTCS8YsbcByc2ivKYqApa3wqOoW8mehU=; b=fey9XrMFF0q27e0Qr+GwnTZyt/NuuoDsNoBi7KTZxNKxsFtUj7sEhxr0oKNjWWcq/j mYUYXMT1N6iT3XppsbIELBLdhBAt7dC/SFwp+GKtyzmHqpdmzcJQ9nB/ID2qWxKn2SnV u8XODmLxKq1EKnhfkd0hcOSe2NDTtxjT8iXXndLroLNRPQd2J5580MjVs3gs+MRkQeLp IUZ31kIHe3I4rwq8XZNsq8n8uZZkIwegiaGBf725ftZPJMfR7bKlId0k7407uIUlKj9F YpvH7H73HXh5RPhrGfbIHOFPMaOTtsJbFn6npiCAYZJg4x8/RSpsRrtggaxpIgUBV+G/ NgbQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id bi12-v6si4320405plb.682.2018.02.20.04.03.48; Tue, 20 Feb 2018 04:03:49 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of stable-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752116AbeBTMDr (ORCPT + 10 others); Tue, 20 Feb 2018 07:03:47 -0500 Received: from mout.kundenserver.de ([217.72.192.73]:59271 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751549AbeBTL7q (ORCPT ); Tue, 20 Feb 2018 06:59:46 -0500 Received: from wuerfel.lan ([95.208.111.237]) by mrelayeu.kundenserver.de (mreue105 [212.227.15.145]) with ESMTPA (Nemesis) id 0LzJj7-1ekEkD0Jhx-014XP2; Tue, 20 Feb 2018 12:59:36 +0100 From: Arnd Bergmann To: stable@vger.kernel.org Cc: Greg KH , linux-kernel@vger.kernel.org, Jun Nie , Vinod Koul , Arnd Bergmann , Dan Williams , Shawn Guo , Sasha Levin , dmaengine@vger.kernel.org Subject: [4.4-stable 16/22] dmaengine: zx: fix build warning Date: Tue, 20 Feb 2018 12:55:03 +0100 Message-Id: <20180220115527.1806578-17-arnd@arndb.de> X-Mailer: git-send-email 2.9.0 In-Reply-To: <20180220115527.1806578-1-arnd@arndb.de> References: <20180220115527.1806578-1-arnd@arndb.de> X-Provags-ID: V03:K0:tc+AkfOPIj+mbEMAmdIVXHozh5l7Chf65N3urJFqVsks5T7RYDh +cED9PmjxbruYoGzjmlEw6dM9fRafibBqI/6zsGpjFmWI/HUeWrA1seiHns2YjHUpIEWTBM dnrKI1MxCUDG1EebyHzKeEGOza58KP5an265IRrI/0TQ4m/8SPZz0FwYZFaVasnHvxEUAQ1 fPisZh1ernhpvFdior7Kg== X-UI-Out-Filterresults: notjunk:1; V01:K0:A27fwyVOJN4=:pGHD7iCr1oftl9xxeLztwu WfCkVPzeRKFZuhidyIDrn0ln3aYZa57G8RlITvXCYbEwk5RH/iu4Xj/fgBk+7lXhLD1XSpZC7 NYCaFmg6pSV0gYM0p8AR9uSdxJqp6lUelhevyl1S0s9AG9w/0x5iS+Q2481LUq68tEQjmA37A MA3BtD2sclVLSTiwD/TVGt1mKnDTIcMFi/FfWgj/PSBDBDQxpdpYuAu5PC1QyuTw2etxWHKxc 5l/lWzvWpW8HEA0Ynuq6xgcpVdDguo9Iwkr+cOM4n/DpuPc36jsKvCd+md+l6TA2J/ug+9uTS 7Dx3GNkwy+qLH8FLyRVt/K/ZWjI1veC8RUSoU4l2ng+f8l+rcTGxMFB2MGuG1bOKUKrcM5Ht0 Ht0b7Gc2tuG2oxJoMNGQzQiZBu42LIBKVTv5YeBc4xt6Be5CPjbct2P0g3oYC7s0ND6hZNn3d YDqAbdSsD6t0+oiiZIJII8jg/inZTe5AFwgIMa6Txxwso6Mddndv3PHXK3PW64UxUuJJWPvWF vvi8KG/NkztRzG8ZgiFOfap9tNp/ssiuyLnifrkJE1Z0MFosRIpyleUFvGCi2TySrekdnWXxx SWaaNPOg0CM1f1YAgl6vvC09fEOTnbaonfKR1w7AoZIpDTsoxqvyAf/2UDAofoM3i6em6+X/p pJh1HwCnXbNuCZpi7g71fVqXBKtMlQ7xSbNx0QgnlmUDXaI8CYIEzrybdFcIiOAv+og6cOZ27 mkMhBWRLov1ucLcKU/g/NbNjpwFv1vjB19DoKA== Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jun Nie commit 067fdeb2f391bfa071f741a2b3eb74b8ff3785cd upstream. Fix build warning that related to PAGE_SIZE. The maximum DMA length has nothing to do with PAGE_SIZE, just use a fix number for the definition. drivers/dma/zx_dma.c: In function 'zx_dma_prep_memcpy': drivers/dma/zx_dma.c:523:8: warning: division by zero [-Wdiv-by-zero] drivers/dma/zx_dma.c: In function 'zx_dma_prep_slave_sg': drivers/dma/zx_dma.c:567:11: warning: division by zero [-Wdiv-by-zero] Signed-off-by: Jun Nie Tested-by: Shawn Guo Signed-off-by: Vinod Koul [arnd: rebased to 4.4-stable] Signed-off-by: Arnd Bergmann --- drivers/dma/zx296702_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.9.0 diff --git a/drivers/dma/zx296702_dma.c b/drivers/dma/zx296702_dma.c index 6059d81e701a..8e55403847b2 100644 --- a/drivers/dma/zx296702_dma.c +++ b/drivers/dma/zx296702_dma.c @@ -26,7 +26,7 @@ #define DRIVER_NAME "zx-dma" #define DMA_ALIGN 4 -#define DMA_MAX_SIZE (0x10000 - PAGE_SIZE) +#define DMA_MAX_SIZE (0x10000 - 512) #define LLI_BLOCK_SIZE (4 * PAGE_SIZE) #define REG_ZX_SRC_ADDR 0x00