Commit 689d6eac ("USB: UHCI: add native scatter-gather support(v1))
added sg support to uhci but forgot to set the sg_table so this feature
remained unused.
Cc: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Cc: Ming Lei <tom.leiming@xxxxxxxxx>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
---
drivers/usb/host/uhci-hcd.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index c8ae199..73def82 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -164,6 +164,11 @@ static void uhci_hc_died(struct uhci_hcd *uhci)
*/
static void check_and_reset_hc(struct uhci_hcd *uhci)
{
+ struct usb_hcd *hcd = uhci_to_hcd(uhci);
+
+ /* Accept arbitrarily long scatter-gather lists */
+ if (!(hcd->driver->flags & HCD_LOCAL_MEM))
+ hcd->self.sg_tablesize = ~0;
if (uhci->check_and_reset_hc(uhci))
finish_reset(uhci);
}
--
1.7.7.3
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