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patch "usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS" added to usb-linus

PATCH [email protected] 1 participant 1 message Jan 26, 2022

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This is a note to let you know that I've just added the patch titled

usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS

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-linus 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 hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 904edf8aeb459697129be5fde847e2a502f41fd9 Mon Sep 17 00:00:00 2001
From: Pavankumar Kondeti <[email protected]>
Date: Sat, 22 Jan 2022 08:33:22 +0530
Subject: usb: gadget: f_sourcesink: Fix isoc transfer for USB_SPEED_SUPER_PLUS

Currently when gadget enumerates in super speed plus, the isoc endpoint request buffer size is not calculated correctly. Fix this by checking the gadget speed against USB_SPEED_SUPER_PLUS and update the request buffer size.

Fixes 90c4d05780d4 ("usb: fix various gadgets null ptr deref on 10gbps cabling.")
Cc stable <[email protected]>
---
 drivers/usb/gadget/function/f_sourcesink.c | 1 +
 1 file changed, 1 insertion(+)
drivers/usb/gadget/function/f_sourcesink.c +1 -0
index 1abf08e5164a..6803cd60cc6d 100644
@@ -584,6 +584,7 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
 
 	if (is_iso) {
 		switch (speed) {
+		case USB_SPEED_SUPER_PLUS:
 		case USB_SPEED_SUPER:
 			size = ss->isoc_maxpacket *
 					(ss->isoc_mult + 1) *
Signature · 1 line
2.35.0