On Thu, 2012-07-05 at 10:44 +0800, Andy Green wrote:
[...]
> To make use of this safely you also need to make sure that any drivers that
> may compete for the bus ordinal you are using (eg, mUSB and ehci in Panda
> case) are loaded in a deterministic order.
[...]
This seems very restrictive... would it be practical to also allow a
driver name as a path component?
[...]
> --- /dev/null
> +++ b/include/net/mac-platform.h
> @@ -0,0 +1,39 @@
> +/*
> + * mac-platform.h: Enforces platform-defined MAC for Async probed devices
> + */
> +
> +#ifndef __NET_MAC_PLATFORM_H__
> +#define __NET_MAC_PLATFORM_H__
> +
> +#include <linux/if_ether.h>
> +
> +/**
> + * struct mac_platform - associates asynchronously probed device path with
> + * MAC address to be assigned to the device when it
> + * is created
A kernel-doc summary is strictly limited to one line. The longer
explanation can go in a paragraph under the field descriptions.
> + * @device_path: device path name of network device
> + * @mac: MAC address to assign to network device matching device path
> + * @list: can be left uninitialized when passing from platform
> + */
> +
> +struct mac_platform {
> + char *device_path;
> + u8 mac[ETH_ALEN];
> + struct list_head list; /* unused in platform data usage */
> +};
[...]
> --- /dev/null
> +++ b/net/ethernet/mac-platform.c
[...]
> +static struct mac_platform *__mac_platform_check(struct device *dev)
> +{
> + const char *path;
> + const char *p;
> + const char *try;
> + int len;
> + struct device *devn;
> + struct mac_platform *tmp;
> + struct list_head *pos;
> +
> + list_for_each(pos, &mac_platform_list) {
> +
> + tmp = list_entry(pos, struct mac_platform, list);
> +
> + try = tmp->device_path;
> +
> + p = try + strlen(try);
> + devn = dev;
> +
> + while (devn) {
> +
> + path = dev_name(devn);
> + len = strlen(path);
> +
> + if ((p - try) < len) {
> + devn = NULL;
> + continue;
> + }
> +
> + p -= len;
[...]
There are so many blank lines here, it's hard to see much code at once.
Ben.
--
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
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