From 6bfbae2cf01026b44a6259121fbea11f92fa27f2 Mon Sep 17 00:00:00 2001 From: Ming Wang Date: Wed, 30 Oct 2024 19:24:27 +0800 Subject: [PATCH] Revert "LoongArch: Remove the unused dma-direct.h" This reverts commit f6758eb7928e8a069c6348010ecd4e635b03aeda. Removing dma-direct.h causes build errors when CONFIG_ARCH_HAS_PHYS_TO_DMA is enabled. This option is needed for compatibility reasons, so dma-direct.h cannot be removed. The build error occurs because arch/loongarch/kernel/dma.c includes include/linux/dma-direct.h, which in turn tries to include asm/dma-direct.h when CONFIG_ARCH_HAS_PHYS_TO_DMA is defined. Fixes: f6758eb7928e ("LoongArch: Remove the unused dma-direct.h") Signed-off-by: Ming Wang --- arch/loongarch/include/asm/dma-direct.h | 11 +++++++++++ 1 file changed, 11 insertions(+) create mode 100644 arch/loongarch/include/asm/dma-direct.h diff --git a/arch/loongarch/include/asm/dma-direct.h b/arch/loongarch/include/asm/dma-direct.h new file mode 100644 index 000000000000..75ccd808a2af --- /dev/null +++ b/arch/loongarch/include/asm/dma-direct.h @@ -0,0 +1,11 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (C) 2020-2022 Loongson Technology Corporation Limited + */ +#ifndef _LOONGARCH_DMA_DIRECT_H +#define _LOONGARCH_DMA_DIRECT_H + +dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr); +phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr); + +#endif /* _LOONGARCH_DMA_DIRECT_H */