lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20210301161230.448360659@linuxfoundation.org>
Date:   Mon,  1 Mar 2021 17:12:35 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Subject: [PATCH 5.11 587/775] usb: dwc3: gadget: Fix dep->interval for fullspeed interrupt

From: Thinh Nguyen <Thinh.Nguyen@...opsys.com>

commit 4b049f55ed95cd889bcdb3034fd75e1f01852b38 upstream.

The dep->interval captures the number of frames/microframes per interval
from bInterval. Fullspeed interrupt endpoint bInterval is the number of
frames per interval and not 2^(bInterval - 1). So fix it here. This
change is only for debugging purpose and should not affect the interrupt
endpoint operation.

Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver")
Cc: <stable@...r.kernel.org>
Signed-off-by: Thinh Nguyen <Thinh.Nguyen@...opsys.com>
Link: https://lore.kernel.org/r/1263b563dedc4ab8b0fb854fba06ce4bc56bd495.1612820995.git.Thinh.Nguyen@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/dwc3/gadget.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -615,8 +615,13 @@ static int dwc3_gadget_set_ep_config(str
 		if (dwc->gadget->speed == USB_SPEED_FULL)
 			bInterval_m1 = 0;
 
+		if (usb_endpoint_type(desc) == USB_ENDPOINT_XFER_INT &&
+		    dwc->gadget->speed == USB_SPEED_FULL)
+			dep->interval = desc->bInterval;
+		else
+			dep->interval = 1 << (desc->bInterval - 1);
+
 		params.param1 |= DWC3_DEPCFG_BINTERVAL_M1(bInterval_m1);
-		dep->interval = 1 << (desc->bInterval - 1);
 	}
 
 	return dwc3_send_gadget_ep_cmd(dep, DWC3_DEPCMD_SETEPCONFIG, &params);


Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ