On Mon, Dec 20, 2021 at 10:16:28PM +0800, Greg KH wrote: > Why not return an error? Because I have received the mail from Martin Habets that telling me it doesn't need to return error code. Here is the mail. https://lore.kernel.org/lkml/20211219092948.t2iprptmyfrzgthb@xxxxxxxxx/ On Sun, Dec 19, 2021 at 05:29:48PM +0800, Martin Habets wrote: > Your predicate is wrong. The code that uses rx_queue->page_ring > can deal with it being NULL. > The only thing you might want to do is set rx_queue->page_ptr_mask > to 0. Jiasheng
