linux-kernel - [PATCH RESEND 0/2] Bluetooth: fix debugfs registration

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Message-Id: <20230531085759.2803-1-johan+linaro@kernel.org>
Date:   Wed, 31 May 2023 10:57:57 +0200
From:   Johan Hovold <johan+linaro@...nel.org>
To:     Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
        netdev@...r.kernel.org, Johan Hovold <johan+linaro@...nel.org>
Subject: [PATCH RESEND 0/2] Bluetooth: fix debugfs registration

The HCI controller debugfs interface is created during setup or when a
controller is configured, but there is nothing preventing a controller
from being configured multiple times (e.g. by setting the device
address), which results in a host of errors in the logs:

	debugfs: File 'features' in directory 'hci0' already present!
	debugfs: File 'manufacturer' in directory 'hci0' already present!
	debugfs: File 'hci_version' in directory 'hci0' already present!
	...
	debugfs: File 'quirk_simultaneous_discovery' in directory 'hci0' already present!

The Qualcomm driver suffers from a related problem for controllers with
non-persistent setup.

Johan


Johan Hovold (2):
  Bluetooth: fix debugfs registration
  Bluetooth: hci_qca: fix debugfs registration

 drivers/bluetooth/hci_qca.c | 6 +++++-
 include/net/bluetooth/hci.h | 1 +
 net/bluetooth/hci_sync.c    | 3 +++
 3 files changed, 9 insertions(+), 1 deletion(-)

-- 
2.39.3