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Message-Id: <1375692423-9497-3-git-send-email-ming.lei@canonical.com> Date: Mon, 5 Aug 2013 16:47:01 +0800 From: Ming Lei <ming.lei@...onical.com> To: "David S. Miller" <davem@...emloft.net>, Greg Kroah-Hartman <gregkh@...uxfoundation.org> Cc: Oliver Neukum <oneukum@...e.de>, Sarah Sharp <sarah.a.sharp@...ux.intel.com>, netdev@...r.kernel.org, linux-usb@...r.kernel.org, Ming Lei <ming.lei@...onical.com>, Alan Stern <stern@...land.harvard.edu> Subject: [PATCH v2 2/4] USB: XHCI: mark no_sg_constraint This patch marks all xHCI controllers as no_sg_constraint since xHCI supports building packet from discontinuous buffers. Cc: Alan Stern <stern@...land.harvard.edu> Acked-by: Sarah Sharp <sarah.a.sharp@...ux.intel.com> Signed-off-by: Ming Lei <ming.lei@...onical.com> --- drivers/usb/host/xhci.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 2c49f00..6e2ac57 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -4841,6 +4841,10 @@ int xhci_gen_setup(struct usb_hcd *hcd, xhci_get_quirks_t get_quirks) /* Accept arbitrarily long scatter-gather lists */ hcd->self.sg_tablesize = ~0; + + /* support to build packet from discontinuous buffers */ + hcd->self.no_sg_constraint = 1; + /* XHCI controllers don't stop the ep queue on short packets :| */ hcd->self.no_stop_on_short = 1; -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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