Re: [PATCH 2.6.23] ibmebus: Prevent bus_id collisions

[jschopp]

> +	len = strlen(dn->full_name + 1);
> +	bus_len = min(len, BUS_ID_SIZE - 1);
> +	memcpy(dev->ofdev.dev.bus_id, dn->full_name + 1
> +	       + (len - bus_len), bus_len);
> +	for (i = 0; i < bus_len; i++)
> +		if (dev->ofdev.dev.bus_id[i] == '/')
> +			dev->ofdev.dev.bus_id[i] = '_';
>  
>  	/* Register with generic device framework. */
>  	if (ibmebus_register_device_common(dev, dn->name) != 0) {

What happens when the full name is > 31 characters?  It looks to me that it 
will be truncated, which takes away the uniqueness guarantee.

There must be an individual property that is guaranteed to be unique and 
less than 32 characters.  How about "ibm,my-drc-index"?  That looks like a 
good candidate.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/