Re: 4.2+ stable inclusion request: ARCv2: save r30 on kernel entry as gcc uses it for code-gen

On Fri, Apr 28, 2017 at 11:57:36AM -0700, Vineet Gupta wrote: > Hi, > > Can we please backport upstream ecd43afdbe72017aefe48080631eb625e177ef4d > ("ARCv2: > save r30 on kernel entry as gcc uses it for code-gen") to 4.2 to 4.9 kernels. > > While the issue cites gcc, it is general deficiency of k

Re: [PATCH] Allow to use DMA_CTRL_REUSE flag for all channel types

On Fri, Apr 28, 2017 at 04:37:46PM +0300, Eugeniy Paltsev wrote: > In the current implementation dma_get_slave_caps is used to check > state of descriptor_reuse option. But dma_get_slave_caps includes > check if the channel supports slave transactions. > So DMA_CTRL_REUSE flag can be set (even for