This small set of patches fixes an issue where DMA from the tegra EHCI controller could be corrupted. It was most commonly seen with USB network adapters, though in theory it could happen with any USB traffic. Note: An attempt was made to fix this specifically for network devices with commit 367c3aab, which set NET_IP_ALIGN to 0 and NET_SKB_PAD to 32. Unfortunately, not all network drivers honor them (presumably since these are intended as optimizations rather than hard rules). This does mean that properly behaved network drivers should fall through this code with very little overhead, however. Version 4 of this patchset adds logic to prevent data copy-out on failure. -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
