/*
 * generic net pointers
 */

#ifndef __NET_GENERIC_H__
#define __NET_GENERIC_H__

#include <linux/bug.h>
#include <linux/rcupdate.h>

/*
 * Generic net pointers are to be used by modules to put some private
 * stuff on the struct net without explicit struct net modification
 *
 * The rules are simple:
 * 1. set pernet_operations->id.  After register_pernet_device you
 *    will have the id of your private pointer.
 * 2. set pernet_operations->size to have the code allocate and free
 *    a private structure pointed to from struct net.
 * 3. do not change this pointer while the net is alive;
 * 4. do not try to have any private reference on the net_generic object.
 *
 * After accomplishing all of the above, the private pointer can be
 * accessed with the net_generic() call.
 */

struct net_generic {
	union {
		struct {
			unsigned int len;
			struct rcu_head rcu;
		} s;

		void *ptr[0];
	};
};

static inline void *net_generic(const struct net *net, unsigned int id)
{
	struct net_generic *ng;
	void *ptr;

	rcu_read_lock();
	ng = rcu_dereference(net->gen);
	ptr = ng->ptr[id];
	rcu_read_unlock();

	return ptr;
}
#endif

<option value='master'>master</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/soc/imx?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/soc/imx'>
<input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='751321b3dd5040dc5be19bd23f985e80c914621a'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/soc?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>soc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>imx</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='h' value='nds-private-remove'/><input type='hidden' name='id' value='751321b3dd5040dc5be19bd23f985e80c914621a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-30 13:18:12 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-30 13:18:12 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>751321b3dd5040dc5be19bd23f985e80c914621a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/soc/imx?id=751321b3dd5040dc5be19bd23f985e80c914621a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>967928e24b38dc7fed918f932bb1b243af42bf7f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>include/soc/imx</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/imx?h=nds-private-remove&amp;id=566cf877a1fcb6d6dc0126b076aad062054c2637'>566cf877a1fcb6d6dc0126b076aad062054c2637</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a&amp;id2=566cf877a1fcb6d6dc0126b076aad062054c2637'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/imx?h=nds-private-remove&amp;id=586655d278ba08af7b198b93217746f9a506ee8a'>586655d278ba08af7b198b93217746f9a506ee8a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/soc/imx?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a&amp;id2=586655d278ba08af7b198b93217746f9a506ee8a'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'rtc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux</div><div class='commit-msg'>Pull RTC fix from Alexandre Belloni:
 "A single fix for this cycle. It is worth taking it for 4.10 so that
  distributions will not have CONFIG_RTC_DRV_JZ4740 switching from m to
  y in their config.

  Summary:
   - Allow jz4740 to build as a module again by using kernel_halt()"

* tag 'rtc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: jz4740: make the driver buildable as a module again
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=751321b3dd5040dc5be19bd23f985e80c914621a'>Diffstat</a> (limited to 'include/soc/imx')</div><table summary='diffstat' class='diffstat'>