>>>>> On Mon, 15 Mar 2004 12:08:48 -0500, "Steven J. Hill" <sjhill@realitydiluted.com> said: sjhill> The 'r4k_dma_cache_wback_inv' function will fail when the sjhill> requested size equals 0 AND when the address is a multiple of sjhill> the line size. I discovered this bug while using the National sjhill> Semiconductor DP8381x series PCI ethernet driver. I have sjhill> attached a test program showing the bug as well as a patch for sjhill> comment. Okay to apply? I think your patch is overkill. It flushes many one line then needed. How about just inserting if (unlikely(size == 0)) return; in beginning of each function? --- Atsushi Nemoto