From e830467143ad0b4efeab3e6c9e1d8033a51a4bf9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 21 May 2017 12:26:24 +0200 Subject: hexagon: switch to use ->mapping_error for error reporting Signed-off-by: Christoph Hellwig Acked-by: Richard Kuo --- arch/hexagon/kernel/dma.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'arch/hexagon/kernel/dma.c') diff --git a/arch/hexagon/kernel/dma.c b/arch/hexagon/kernel/dma.c index e74b65009587..8140b1c5de68 100644 --- a/arch/hexagon/kernel/dma.c +++ b/arch/hexagon/kernel/dma.c @@ -25,11 +25,11 @@ #include #include +#define HEXAGON_MAPPING_ERROR 0 + const struct dma_map_ops *dma_ops; EXPORT_SYMBOL(dma_ops); -int bad_dma_address; /* globals are automatically initialized to zero */ - static inline void *dma_addr_to_virt(dma_addr_t dma_addr) { return phys_to_virt((unsigned long) dma_addr); @@ -181,7 +181,7 @@ static dma_addr_t hexagon_map_page(struct device *dev, struct page *page, WARN_ON(size == 0); if (!check_addr("map_single", dev, bus, size)) - return bad_dma_address; + return HEXAGON_MAPPING_ERROR; if (!(attrs & DMA_ATTR_SKIP_CPU_SYNC)) dma_sync(dma_addr_to_virt(bus), size, dir); @@ -203,6 +203,11 @@ static void hexagon_sync_single_for_device(struct device *dev, dma_sync(dma_addr_to_virt(dma_handle), size, dir); } +static int hexagon_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return dma_addr == HEXAGON_MAPPING_ERROR; +} + const struct dma_map_ops hexagon_dma_ops = { .alloc = hexagon_dma_alloc_coherent, .free = hexagon_free_coherent, @@ -210,6 +215,7 @@ const struct dma_map_ops hexagon_dma_ops = { .map_page = hexagon_map_page, .sync_single_for_cpu = hexagon_sync_single_for_cpu, .sync_single_for_device = hexagon_sync_single_for_device, + .mapping_error = hexagon_mapping_error, .is_phys = 1, }; -- cgit v1.2.3-59-g8ed1b