Re: [PATCH v1 1/4] USB: introduce usb_device_no_sg_limit() helper

2013-08-03 Thread Alan Stern
On Sat, 3 Aug 2013, Ming Lei wrote: Some host controllers(such as xHCI) can support building packet from discontinuous buffers, so introduce one flag and helper for this kind of host controllers, then the feature can help some applications(such as, usbnet) by supporting arbitrary length of

Re: [PATCH v1 1/4] USB: introduce usb_device_no_sg_limit() helper

2013-08-03 Thread Ming Lei
On Sat, Aug 3, 2013 at 11:53 PM, Alan Stern st...@rowland.harvard.edu wrote: On Sat, 3 Aug 2013, Ming Lei wrote: Some host controllers(such as xHCI) can support building packet from discontinuous buffers, so introduce one flag and helper for this kind of host controllers, then the feature

[PATCH v1 1/4] USB: introduce usb_device_no_sg_limit() helper

2013-08-02 Thread Ming Lei
Some host controllers(such as xHCI) can support building packet from discontinuous buffers, so introduce one flag and helper for this kind of host controllers, then the feature can help some applications(such as, usbnet) by supporting arbitrary length of sg buffers. Cc: Alan Stern