disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/arch/arm64/include/asm/device.h
..
..
@@ -1,41 +1,14 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /*
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  * Copyright (C) 2012 ARM Ltd.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
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  */
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 #ifndef __ASM_DEVICE_H
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 #define __ASM_DEVICE_H
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 struct dev_archdata {
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-#ifdef CONFIG_IOMMU_API
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-	void *iommu;			/* private IOMMU data */
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-#endif
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-#ifdef CONFIG_XEN
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-	const struct dma_map_ops *dev_dma_ops;
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-#endif
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-	bool dma_coherent;
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-#ifdef CONFIG_ARM64_DMA_USE_IOMMU
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-	struct dma_iommu_mapping       *mapping;
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-#endif
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 };
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 struct pdev_archdata {
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 };
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-
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-#ifdef CONFIG_ARM64_DMA_USE_IOMMU
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-#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
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-#else
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-#define to_dma_iommu_mapping(dev) NULL
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-#endif
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 #endif