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Tue, 15 Oct 2019 20:12:51 -0700 (PDT) From: Nathan Chancellor To: Catalin Marinas , Will Deacon Subject: [PATCH -next v2] arm64: mm: Fix unused variable warning in zone_sizes_init Date: Tue, 15 Oct 2019 20:11:08 -0700 Message-Id: <20191016031107.30045-1-natechancellor@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191015224304.20963-1-natechancellor@gmail.com> References: <20191015224304.20963-1-natechancellor@gmail.com> MIME-Version: 1.0 X-Patchwork-Bot: notify X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191015_201253_720303_29DCB55D X-CRM114-Status: GOOD ( 10.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nathan Chancellor , linux-arm-kernel@lists.infradead.org, Nicolas Saenz Julienne , linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org When building arm64 allnoconfig, CONFIG_ZONE_DMA and CONFIG_ZONE_DMA32 get disabled so there is a warning about max_dma being unused. ../arch/arm64/mm/init.c:215:16: warning: unused variable 'max_dma' [-Wunused-variable] unsigned long max_dma = min; ^ 1 warning generated. Add an ifdef around the variable to fix this. Fixes: 1a8e1cef7603 ("arm64: use both ZONE_DMA and ZONE_DMA32") Signed-off-by: Nathan Chancellor --- v1 -> v2: * Fix check for CONFIG_ZONE_DMA32 as pointed out by Will. arch/arm64/mm/init.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 44f07fdf7a59..359c3b08b968 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -212,7 +212,9 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) struct memblock_region *reg; unsigned long zone_size[MAX_NR_ZONES], zhole_size[MAX_NR_ZONES]; unsigned long max_dma32 = min; +#if defined(CONFIG_ZONE_DMA) || defined(CONFIG_ZONE_DMA32) unsigned long max_dma = min; +#endif memset(zone_size, 0, sizeof(zone_size)); -- 2.23.0 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel