Re: /net/core/dev_2.0.c
Re: /net/core/dev_2.0.c
- Subject: Re: /net/core/dev_2.0.c
- From: Patrick Anderson <email@hidden>
- Date: Mon, 11 Feb 2013 09:11:32 -0700
The sender obviously did not write the comments in this code, as they
are perfect English.
This appears to be a modified portion of the Linux kernel - see:
http://lxr.free-electrons.com/source/net/core/dev.c
On Mon, Feb 11, 2013 at 7:15 AM, Stephen Checkoway <email@hidden> wrote:
> Why are you just emailing code to the list? Do you have a question?
>
> On Feb 11, 2013, at 3:52 AM, Kenichi Mori <email@hidden> wrote:
>
>> Hi folks
>> this my code is very exedent very sorry much
>> thanks for read me please
>>
>>
>>
>>
>> //
>> // dev_2.0.c
>> //
>> //
>> // Created by Mac User on 13/02/11.
>> //
>> //
>>
>> #include <stdio.h>
>> /**
>> * __xev_get_by_name - find a device by its name
>> * @name: name to find
>> *
>> * Find an interface by name. Must be called under RTNL semaphore
>> * or @dev_base_lock. If the name is found a pointer to the device
>> * is returned. If the name is not found then %NULL is returned. The
>> * reference counters are not incremented so the caller must be
>> * careful with locks.
>> */
>>
>> struct net_xevice *__xev_get_by_name(const char *name)
>> {
>> struct hlist_node *p;
>>
>> hlist_for_each(p, xev_name_hash(name)) {
>> struct net_device *xev
>> = hlist_entry(p, struct net_device, name_hlist);
>> if (!strncmp(dev->name, name, IFNAMSIZ))
>> return xev;
>> }
>> return NULL;
>> }
>>
>> /**
>> * xev_get_by_name - find a device by its name
>> * @name: name to find
>> *
>> * Find an interface by name. This can be called from any
>> * context and does its own locking. The returned handle has
>> * the usage count incremented and the caller must use dev_put() to
>> * release it when it is no longer needed. %NULL is returned if no
>> * matching device is found.
>> */
>>
>> struct net_device *xev_get_by_name(const char *name)
>> {
>> struct net_device *xev;
>>
>> read_lock(&xev_base_lock);
>> xev = __xev_get_by_name(name);
>> if (xev)
>> xev_hold(xev);
>> read_unlock(&xev_base_lock);
>> return xev;
>> }
>>
>> /**
>> * __xev_get_by_index - find a device by its ifindex
>> * @ifindex: index of device
>> *
>> * Search for an interface by index. Returns %NULL if the device
>> * is not found or a pointer to the device. The device has not
>> * had its reference counter increased so the caller must be careful
>> * about locking. The caller must hold either the RTNL semaphore
>> * or @dev_base_lock.
>> */
>>
>> struct net_device *__xev_get_by_index(int ifindex)
>> {
>> struct hlist_node *p;
>>
>> hlist_for_each(p, xev_index_hash(ifindex)) {
>> struct net_device *xev
>> = hlist_entry(p, struct net_device, index_hlist);
>> if (dev->ifindex == ifindex)
>> return xev;
>> }
>> return NULL;
>> }
>>
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> --
> Stephen Checkoway
>
>
>
>
>
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--
Patrick Anderson
http://ImputedProduction.BlogSpot.com
http://SocialSufficiencyCoalition.BlogSpot.com
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