linux-kernel - [PATCH 4.16 077/161] usbip: Correct maximum value of CONFIG_USBIP_VHCI_HC

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Date:   Thu, 24 May 2018 11:38:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Gianluigi Tiesi <sherpya@...farm.it>,
        Borissh1983 <borissh1983@...il.com>,
        Ben Hutchings <ben@...adent.org.uk>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.16 077/161] usbip: Correct maximum value of CONFIG_USBIP_VHCI_HC_PORTS

4.16-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@...adent.org.uk>

[ Upstream commit 351a8d4837ae0d61744e64262c3a80ab92ff3e42 ]

Now that usbip supports USB3, the maximum number of ports allowed
on a hub is 15 (USB_SS_MAXPORTS), not 31 (USB_MAXCHILDREN).

Reported-by: Gianluigi Tiesi <sherpya@...farm.it>
Reported-by: Borissh1983 <borissh1983@...il.com>
References: https://bugs.debian.org/878866
Fixes: 1c9de5bf4286 ("usbip: vhci-hcd: Add USB3 SuperSpeed support")
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/usb/usbip/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/usbip/Kconfig
+++ b/drivers/usb/usbip/Kconfig
@@ -27,7 +27,7 @@ config USBIP_VHCI_HCD
 
 config USBIP_VHCI_HC_PORTS
 	int "Number of ports per USB/IP virtual host controller"
-	range 1 31
+	range 1 15
 	default 8
 	depends on USBIP_VHCI_HCD
 	---help---