These patches fix an issue I ran into into where the Beaglebone Black would lock up on disconnect. Turns out this was related to the transfer_buffers not being properly aligned, causing musb to use temporary buffers for the transfers. On transfer errors (e.g. during disconnect), the full buffer content was still being copied, something which could lead starvation of the hub work queue when using large-enough buffers. Included is also a fix for the same issue for ehci-tegra that has been compile tested only. Note that the octeon-hcd driver in staging, which also uses temporary buffers for unaligned transfers, appears to already get this right. Johan Johan Hovold (2): USB: musb: fix inefficient copy of unaligned buffers USB: ehci-tegra: fix inefficient copy of unaligned buffers drivers/usb/host/ehci-tegra.c | 2 +- drivers/usb/musb/musb_host.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) -- 2.0.5 -- 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
