diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/pci-nommu_64.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c index 90a7c40aa98..a4e8ccfae4c 100644 --- a/arch/x86/kernel/pci-nommu_64.c +++ b/arch/x86/kernel/pci-nommu_64.c @@ -67,9 +67,21 @@ static int nommu_map_sg(struct device *hwdev, struct scatterlist *sg, return nents; } +/* Make sure we keep the same behaviour */ +static int nommu_mapping_error(dma_addr_t dma_addr) +{ +#ifdef CONFIG_X86_32 + return 0; +#else + return (dma_addr == bad_dma_address); +#endif +} + + const struct dma_mapping_ops nommu_dma_ops = { .map_single = nommu_map_single, .map_sg = nommu_map_sg, + .mapping_error = nommu_mapping_error, .is_phys = 1, }; |