On Fri, Dec 07, 2018 at 11:07:05AM -0800, Christoph Hellwig wrote: > This works is based on the dma-mapping tree, so you probably want to > want this git tree for testing: > > git://git.infradead.org/users/hch/misc.git dma-direct-calls.2 Pulled this tree. Got HEAD 33b9fc015171 ("dma-mapping: bypass indirect calls for dma-direct") But the ia64 build fails with: arch/ia64/mm/init.c:75:21: warning: 'enum dma_data_direction' declared inside parameter list [enabled by default] arch/ia64/mm/init.c:75:21: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] arch/ia64/mm/init.c:75:40: error: parameter 4 ('dir') has incomplete type arch/ia64/mm/init.c:74:6: error: function declaration isn't a prototype [-Werror=strict-prototypes] arch/ia64/mm/init.c: In function 'arch_sync_dma_for_cpu': arch/ia64/mm/init.c:77:2: error: implicit declaration of function '__phys_to_pfn' [-Werror=implicit-function-declaration] -Tony