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| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2014-01-31 19:52:57 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-22 21:32:28 (GMT) |
| commit | aad850bd0d8be9038f887bae8b76ac81da6ddd2a (patch) | |
| tree | 802ddc061face397cab0b94ffa46f9a7e86a39e6 /include/linux/usb.h | |
| parent | f47a7fb0a06f44707d416b752508d79ce59575e5 (diff) | |
| download | linux-fsl-qoriq-aad850bd0d8be9038f887bae8b76ac81da6ddd2a.tar.xz | |
Revert "usb: xhci: Link TRB must not occur within a USB payload burst"
commit 3d4b81eda2211f32886e2978daf6f39885042fc4 upstream.
This reverts commit 35773dac5f862cb1c82ea151eba3e2f6de51ec3e. It's a
hack that caused regressions in the usb-storage and userspace USB
drivers that use usbfs and libusb. Commit 70cabb7d992f "xhci 1.0: Limit
arbitrarily-aligned scatter gather." should fix the issues seen with the
ax88179_178a driver on xHCI 1.0 hosts, without causing regressions.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 6b02370..39cfa0a 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1262,8 +1262,6 @@ typedef void (*usb_complete_t)(struct urb *); * @sg: scatter gather buffer list, the buffer size of each element in * the list (except the last) must be divisible by the endpoint's * max packet size if no_sg_constraint isn't set in 'struct usb_bus' - * (FIXME: scatter-gather under xHCI is broken for periodic transfers. - * Do not use urb->sg for interrupt endpoints for now, only bulk.) * @num_mapped_sgs: (internal) number of mapped sg entries * @num_sgs: number of entries in the sg list * @transfer_buffer_length: How big is transfer_buffer. The transfer may |