On Thu, Jun 13, 2019 at 11:52:14AM +0200, Greg Kroah-Hartman wrote: > On Thu, Jun 13, 2019 at 03:13:28PM +0800, Ming Lei wrote: > > The current way isn't safe for chained sgl, so use sg helper to > > operate sgl. > > I can not make any sense out of this changelog. > > What "isn't safe"? What is a "sgl"? sgl is 'scatterlist' in kernel, and several linear sgl can be chained together, so accessing the sgl in linear way may see a chained sg, which is like a link pointer, then may cause trouble for driver. > > Can this be applied "out of order"? Yes, there isn't any dependency among the 15 patches. Thanks, Ming