On Tue, Jan 11, 2022 at 12:40:10PM +0100, Thomas Zimmermann wrote:

Hi

Am 10.01.22 um 20:34 schrieb Matthew Wilcox:

quoted

TLDR: I want to introduce a new data type:

struct phyr {
         phys_addr_t addr;
         size_t len;
};

Did you look at struct dma_buf_map? [1]

Thanks.  I wasn't aware of that.  It doesn't seem to actually solve the
problem, in that it doesn't carry any length information.  Did you mean
to point me at a different structure?