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>
---
v1..v2: moved to uhci_start() as suggested by Alan.
drivers/usb/host/uhci-hcd.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index c8ae199..167be7e 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -565,6 +565,9 @@ static int uhci_start(struct usb_hcd *hcd)
struct dentry __maybe_unused *dentry;
hcd->uses_new_polling = 1;
+ /* Accept arbitrarily long scatter-gather lists */
+ if (!(hcd->driver->flags & HCD_LOCAL_MEM))
+ hcd->self.sg_tablesize = ~0;
spin_lock_init(&uhci->lock);
setup_timer(&uhci->fsbr_timer, uhci_fsbr_timeout,
--
1.7.8.3
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