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From: Rajat Jain <rajatja@google.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Alan Stern <stern@rowland.harvard.edu>,
	Rajat Jain <rajatja@google.com>,
	Thinh Nguyen <Thinh.Nguyen@synopsys.com>,
	Mathias Nyman <mathias.nyman@linux.intel.com>,
	Andrew Lunn <andrew@lunn.ch>,
	Chris Chiu <chris.chiu@canonical.com>,
	linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: levinale@google.com, bleung@google.com, rajatxjain@gmail.com,
	jsbarnes@google.com, pmalani@google.com
Subject: [PATCH 2/2] usb: hub: Mark devices downstream a removable hub, as removable
Date: Wed, 29 Sep 2021 15:48:23 -0700	[thread overview]
Message-ID: <20210929224823.556943-2-rajatja@google.com> (raw)
In-Reply-To: <20210929224823.556943-1-rajatja@google.com>

If a usb device sits below a removable hub, mark the device also as
removable. This helps with devices inserted on a standard removable hub or
also thunderbold docks, to be shown as removable.

Signed-off-by: Rajat Jain <rajatja@google.com>
---
 drivers/usb/core/hub.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 45d1c81b121d..901d74bcdbd9 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2449,6 +2449,13 @@ static void set_usb_port_removable(struct usb_device *udev)
 		if (udev->dev.parent && dev_is_removable(udev->dev.parent))
 			dev_set_removable(&udev->dev, DEVICE_REMOVABLE);
 		return;
+	} else if (dev_is_removable(&hdev->dev)) {
+		/*
+		 * If this USB device sits downstream a removable hub, then mark
+		 * this device also as removable.
+		 */
+		dev_set_removable(&udev->dev, DEVICE_REMOVABLE);
+		return;
 	}
 
 	hub = usb_hub_to_struct_hub(udev->parent);
-- 
2.33.0.685.g46640cef36-goog


  reply	other threads:[~2021-09-29 22:48 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-29 22:48 [PATCH 1/2] usb: hub: Mark root hubs on removable devices, " Rajat Jain
2021-09-29 22:48 ` Rajat Jain [this message]
2021-09-30  5:31   ` [PATCH 2/2] usb: hub: Mark devices downstream a removable hub, " Greg Kroah-Hartman
2021-10-04 22:42     ` Rajat Jain
2021-10-05 14:56       ` Alan Stern
2021-10-05 16:51         ` Dmitry Torokhov
2021-10-05 19:59           ` Alan Stern
2021-10-05 23:43             ` Rajat Jain
2021-10-06  0:41               ` Andrew Lunn
2021-10-06 16:08               ` Alan Stern
2021-10-06  9:37             ` Oliver Neukum
2021-10-06 16:10               ` Alan Stern
2021-10-06 18:36                 ` Oliver Neukum
2021-09-30  5:30 ` [PATCH 1/2] usb: hub: Mark root hubs on removable devices, " Greg Kroah-Hartman
2021-10-04 21:51   ` Rajat Jain
2021-09-30  8:02 ` Oliver Neukum
2021-10-04 21:56   ` Rajat Jain
2021-10-05 11:19 ` Greg Kroah-Hartman
2021-10-05 23:49   ` Rajat Jain

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