This is a note to let you know that I've just added the patch titled
usb: dwc3: prevent setting PRTCAP to OTG from debugfs
to my usb git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git in the usb-testing branch.
The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)
The patch will be merged to the usb-next branch sometime soon, after it passes testing, and the merge window is open.
If you have any questions about this process, please let me know.
From daaecc6541d014dca073473ec8a4120c0babbeb4 Mon Sep 17 00:00:00 2001
From: Roger Quadros rogerq@ti.com Date: Tue, 27 Feb 2018 12:54:37 +0200 Subject: usb: dwc3: prevent setting PRTCAP to OTG from debugfs
We don't support PRTCAP == OTG yet, so prevent user from setting it via debugfs.
Fixes: 41ce1456e1db ("usb: dwc3: core: make dwc3_set_mode() work properly") Cc: stable@vger.kernel.org # v4.12+ Signed-off-by: Roger Quadros rogerq@ti.com Signed-off-by: Felipe Balbi felipe.balbi@linux.intel.com --- drivers/usb/dwc3/core.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index f1d838a4acd6..b014c87a7319 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -119,6 +119,9 @@ static void __dwc3_set_mode(struct work_struct *work) if (dwc->dr_mode != USB_DR_MODE_OTG) return;
+ if (dwc->desired_dr_role == DWC3_GCTL_PRTCAP_OTG) + return; + switch (dwc->current_dr_role) { case DWC3_GCTL_PRTCAP_HOST: dwc3_host_exit(dwc);