From: Arnd Bergmann <arnd@arndb.de>
To: stable@vger.kernel.org
Cc: Greg KH <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Jun Nie <jun.nie@linaro.org>,
Vinod Koul <vinod.koul@intel.com>, Arnd Bergmann <arnd@arndb.de>,
Dan Williams <dan.j.williams@intel.com>,
Shawn Guo <shawn.guo@linaro.org>,
Sasha Levin <alexander.levin@verizon.com>,
dmaengine@vger.kernel.org
Subject: [4.4-stable 16/22] dmaengine: zx: fix build warning
Date: Tue, 20 Feb 2018 12:55:03 +0100 [thread overview]
Message-ID: <20180220115527.1806578-17-arnd@arndb.de> (raw)
In-Reply-To: <20180220115527.1806578-1-arnd@arndb.de>
From: Jun Nie <jun.nie@linaro.org>
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 <jun.nie@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
[arnd: rebased to 4.4-stable]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/dma/zx296702_dma.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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
--
2.9.0
next prev parent reply other threads:[~2018-02-20 11:55 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-20 11:54 [4.4-stable 00/22] patches for 'randconfig' Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 01/22] gpio: xgene: mark PM functions as __maybe_unused Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 02/22] Revert "power: bq27xxx_battery: Remove unneeded dependency in Kconfig" Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 03/22] power: bq27xxx_battery: mark some symbols __maybe_unused Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 04/22] isdn: sc: work around type mismatch warning Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 05/22] binfmt_elf: compat: avoid unused function warning Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 06/22] idle: i7300: add PCI dependency Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 07/22] usb: phy: msm add regulator dependency Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 08/22] ncr5380: shut up gcc indentation warning Arnd Bergmann
2018-02-20 22:44 ` Finn Thain
2018-02-20 11:54 ` [4.4-stable 09/22] ARM: tegra: select USB_ULPI from EHCI rather than platform Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 10/22] ASoC: Intel: Kconfig: fix build when ACPI is not enabled Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 11/22] netlink: fix nla_put_{u8,u16,u32} for KASAN Arnd Bergmann
2018-02-20 11:54 ` [4.4-stable 12/22] virtio_balloon: prevent uninitialized variable use Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 13/22] dell-wmi, dell-laptop: depends DMI Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 14/22] genksyms: Fix segfault with invalid declarations Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 15/22] perf/x86: Shut up false-positive -Wmaybe-uninitialized warning Arnd Bergmann
2018-02-20 11:55 ` Arnd Bergmann [this message]
2018-02-20 11:55 ` [4.4-stable 17/22] cw1200: fix bogus maybe-uninitialized warning Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 18/22] x86/microcode/AMD: Change load_microcode_amd()'s param to bool to fix preemptibility bug Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 19/22] net: hp100: remove unnecessary #ifdefs Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 20/22] ncpfs: fix unused variable warning Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 21/22] drm/gma500: remove helper function Arnd Bergmann
2018-02-20 11:55 ` [4.4-stable 22/22] kasan: rework Kconfig settings Arnd Bergmann
2018-02-23 16:18 ` [4.4-stable 00/22] patches for 'randconfig' Greg KH
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