An earlier patch added dma mapping error debug feature to dma_debug infrastructure. References: https://lkml.org/lkml/2012/10/8/296 https://lkml.org/lkml/2012/11/3/219 The following series of patches adds the call to debug_dma_mapping_error() to architecture specific dma_mapping_error() interfaces on the following architectures that support CONFIG_DMA_API_DEBUG. arm64 c6x ia64 microblaze mips powerpc sh sparc tile arm - Change is already in Marek's dma-mapping tree[1] https://patchwork.kernel.org/patch/1625601/ microblaze - Change is already in linux-next. Including it for completeness linux-next commit f229605441030bcd315c21d97b25889d63ed0130 x86 - done in the first patch that added the feature. ARM64: dma_debug: add debug_dma_mapping_error support c6x: dma_debug: add debug_dma_mapping_error support ia64: dma_debug: add debug_dma_mapping_error support microblaze: dma-mapping: support debug_dma_mapping_error mips: dma_debug: add debug_dma_mapping_error support powerpc: dma_debug: add debug_dma_mapping_error support sh: dma_debug: add debug_dma_mapping_error support sparc: dma_debug: add debug_dma_mapping_error support tile: dma_debug: add debug_dma_mapping_error support Thanks, -- Shuah
