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SubjectRe: [PATCH v2 11/11] hso: fix rfkill name conflicts
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On Fri, 2015-01-30 at 13:22 +0100, Olivier Sobrie wrote:
> By using only the usb interface number for the rfkill name, we might
> have a name conflicts in case two similar hso devices are connected.
>
> In this patch, the name of the hso rfkill interface embed the value
> of a counter that is incremented each time a new rfkill interface is
> added.
>
> Suggested-by: Dan Williams <dcbw@redhat.com>
> Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
> ---
> drivers/net/usb/hso.c | 5 +++--
> 1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/usb/hso.c b/drivers/net/usb/hso.c
> index c14fc80..d31a165 100644
> --- a/drivers/net/usb/hso.c
> +++ b/drivers/net/usb/hso.c
> @@ -153,7 +153,7 @@ struct hso_net {
> struct hso_device *parent;
> struct net_device *net;
> struct rfkill *rfkill;
> - char name[8];
> + char name[24];
>
> struct usb_endpoint_descriptor *in_endp;
> struct usb_endpoint_descriptor *out_endp;
> @@ -2469,9 +2469,10 @@ static void hso_create_rfkill(struct hso_device *hso_dev,
> {
> struct hso_net *hso_net = dev2net(hso_dev);
> struct device *dev = &hso_net->net->dev;
> + static u32 rfkill_counter;

It'll probably be initialized to 0, but still, it would feel safer with
an explicit "rfkill_counter = 0"...

Dan

> snprintf(hso_net->name, sizeof(hso_net->name), "hso-%d",
> - interface->altsetting->desc.bInterfaceNumber);
> + rfkill_counter++);
>
> hso_net->rfkill = rfkill_alloc(hso_net->name,
> &interface_to_usbdev(interface)->dev,




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