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authorSarah Sharp <sarah.a.sharp@linux.intel.com>2014-01-31 23:52:57 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-02-23 01:32:28 +0400
commitaad850bd0d8be9038f887bae8b76ac81da6ddd2a (patch)
tree802ddc061face397cab0b94ffa46f9a7e86a39e6 /include/linux/usb.h
parentf47a7fb0a06f44707d416b752508d79ce59575e5 (diff)
downloadlinux-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.h2
1 files changed, 0 insertions, 2 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 6b02370256e4..39cfa0aca91f 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