From: Greg KH <gregkh@linuxfoundation.org>
To: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: linux-usb@vger.kernel.org, stern@rowland.harvard.edu,
Paul Menzel <pmenzel@molgen.mpg.de>,
stable@vger.kernel.org
Subject: Re: [PATCH 2/2] usb: port: Don't try to peer unused USB ports based on location
Date: Thu, 22 Feb 2024 15:06:36 +0100 [thread overview]
Message-ID: <2024022220-untried-routine-15e5@gregkh> (raw)
In-Reply-To: <20240222133819.4149388-2-mathias.nyman@linux.intel.com>
On Thu, Feb 22, 2024 at 03:38:19PM +0200, Mathias Nyman wrote:
> Unused USB ports may have bogus location data in ACPI PLD tables.
> This causes port peering failures as these unused USB2 and USB3 ports
> location may match.
>
> This is seen on DELL systems where all unused ports return zeroed
> location data.
>
> Don't try to peer or match ports that have connect type set to
> USB_PORT_NOT_USED.
>
> Tested-by: Paul Menzel <pmenzel@molgen.mpg.de>
> Cc: stable@vger.kernel.org
> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
What commit does this fix? "all" of them?
thanks,
greg k-h
next prev parent reply other threads:[~2024-02-22 14:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20240222133819.4149388-1-mathias.nyman@linux.intel.com>
2024-02-22 13:38 ` [PATCH 2/2] usb: port: Don't try to peer unused USB ports based on location Mathias Nyman
2024-02-22 14:06 ` Greg KH [this message]
2024-02-22 15:03 ` Mathias Nyman
2024-02-22 15:51 ` Paul Menzel
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