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
Hello:
This series was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <[email protected]>:
On Wed, 31 May 2023 10:57:57 +0200 you wrote:
> 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!
>
> [...]
Here is the summary with links:
- [RESEND,1/2] Bluetooth: fix debugfs registration
https://git.kernel.org/bluetooth/bluetooth-next/c/3e972279b782
- [RESEND,2/2] Bluetooth: hci_qca: fix debugfs registration
https://git.kernel.org/bluetooth/bluetooth-next/c/22307d477e3f
You are awesome, thank you!
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