Re: [PATCH 1/3] Provide simple noop dma ops

Am 02.11.2015 um 16:16 schrieb Joerg Roedel: > On Fri, Oct 30, 2015 at 02:20:35PM +0100, Christian Borntraeger wrote: >> +static void *dma_noop_alloc(struct device *dev, size_t size, >> +dma_addr_t *dma_handle, gfp_t gfp, >> +struct dma_attrs *attrs)

Re: [PATCH 1/3] Provide simple noop dma ops

On Fri, Oct 30, 2015 at 02:20:35PM +0100, Christian Borntraeger wrote: > +static void *dma_noop_alloc(struct device *dev, size_t size, > + dma_addr_t *dma_handle, gfp_t gfp, > + struct dma_attrs *attrs) > +{ > + void *ret; > + > + ret = (void

[PATCH 1/3] Provide simple noop dma ops

We are going to require dma_ops for several common drivers, even for systems that do have an identity mapping. Lets provide some minimal no-op dma_ops that can be used for that purpose. Signed-off-by: Christian Borntraeger --- include/linux/dma-mapping.h | 2 ++