On Wed, Nov 29, 2023 at 05:43:01PM +0000, Robin Murphy wrote: > Several places want to compute the lower and/or upper bounds of a > dma_range_map, so let's factor that out into reusable helpers. As the build bot pointed out this will need a fix for the initialization all-Fs for a 32-bit dma_addr_t, e.g. by using (dma_addr_t)-1, but otherwise looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx>