Subject: patch "usb: dwc3: Fix debugfs creation flow" added to usb-testing
To:     Minas.Harutyunyan@synopsys.com, gregkh@linuxfoundation.org,
        jackp@codeaurora.org, stable@vger.kernel.org
From:   <gregkh@linuxfoundation.org>
Date:   Mon, 21 Jun 2021 11:28:39 +0200
Message-ID: <16242677198235@kroah.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ANSI_X3.4-1968
Content-Transfer-Encoding: 8bit
Precedence: bulk


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

    usb: dwc3: Fix debugfs creation flow

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 84524d1232ecca7cf8678e851b254f05cff4040a Mon Sep 17 00:00:00 2001
From: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Date: Thu, 17 Jun 2021 09:55:24 -0700
Subject: usb: dwc3: Fix debugfs creation flow

Creation EP's debugfs called earlier than debugfs folder for dwc3
device created. As result EP's debugfs are created in '/sys/kernel/debug'
instead of '/sys/kernel/debug/usb/dwc3.1.auto'.

Moved dwc3_debugfs_init() function call before calling
dwc3_core_init_mode() to allow create dwc3 debugfs parent before
creating EP's debugfs's.

Fixes: 8d396bb0a5b6 ("usb: dwc3: debugfs: Add and remove endpoint dirs dynamically")
Cc: stable <stable@vger.kernel.org>
Reviewed-by: Jack Pham <jackp@codeaurora.org>
Signed-off-by: Minas Harutyunyan <Minas.Harutyunyan@synopsys.com>
Link: https://lore.kernel.org/r/01fafb5b2d8335e98e6eadbac61fc796bdf3ec1a.1623948457.git.Minas.Harutyunyan@synopsys.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index e0a8e796c158..ba74ad7f6995 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1620,17 +1620,18 @@ static int dwc3_probe(struct platform_device *pdev)
 	}
 
 	dwc3_check_params(dwc);
+	dwc3_debugfs_init(dwc);
 
 	ret = dwc3_core_init_mode(dwc);
 	if (ret)
 		goto err5;
 
-	dwc3_debugfs_init(dwc);
 	pm_runtime_put(dev);
 
 	return 0;
 
 err5:
+	dwc3_debugfs_exit(dwc);
 	dwc3_event_buffers_cleanup(dwc);
 
 	usb_phy_shutdown(dwc->usb2_phy);
-- 
2.32.0