#ifndef __TOOLS_ASM_GENERIC_ATOMIC_H
#define __TOOLS_ASM_GENERIC_ATOMIC_H

#include <linux/compiler.h>
#include <linux/types.h>

/*
 * Atomic operations that C can't guarantee us.  Useful for
 * resource counting etc..
 *
 * Excerpts obtained from the Linux kernel sources.
 */

#define ATOMIC_INIT(i)	{ (i) }

/**
 * atomic_read - read atomic variable
 * @v: pointer of type atomic_t
 *
 * Atomically reads the value of @v.
 */
static inline int atomic_read(const atomic_t *v)
{
	return ACCESS_ONCE((v)->counter);
}

/**
 * atomic_set - set atomic variable
 * @v: pointer of type atomic_t
 * @i: required value
 *
 * Atomically sets the value of @v to @i.
 */
static inline void atomic_set(atomic_t *v, int i)
{
        v->counter = i;
}

/**
 * atomic_inc - increment atomic variable
 * @v: pointer of type atomic_t
 *
 * Atomically increments @v by 1.
 */
static inline void atomic_inc(atomic_t *v)
{
	__sync_add_and_fetch(&v->counter, 1);
}

/**
 * atomic_dec_and_test - decrement and test
 * @v: pointer of type atomic_t
 *
 * Atomically decrements @v by 1 and
 * returns true if the result is 0, or false for all other
 * cases.
 */
static inline int atomic_dec_and_test(atomic_t *v)
{
	return __sync_sub_and_fetch(&v->counter, 1) == 0;
}

#endif /* __TOOLS_ASM_GENERIC_ATOMIC_H */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>gadget</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/function?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>function</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/function/uvc.h?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>uvc.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='e98d5fef8556f1da7f903fd1908feed84bb0f90d'/><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>Axel Lin &lt;axel.lin@ingics.com&gt;</td><td class='right'>2016-10-21 16:40:05 +0800</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-10-24 17:49:14 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/function/uvc.h?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>e98d5fef8556f1da7f903fd1908feed84bb0f90d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/gadget/function/uvc.h?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>patch</a>)</td></tr>
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<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/gadget/function/uvc.h?id=1001354ca34179f3db924eb66672442a173147dc'>1001354ca34179f3db924eb66672442a173147dc</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/gadget/function/uvc.h?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d&amp;id2=1001354ca34179f3db924eb66672442a173147dc'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: tps6507x: Drop pointless static qualifier for *reg_data variable</div><div class='commit-msg'>There is no need to use static for this local variable.

Signed-off-by: Axel Lin &lt;axel.lin@ingics.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=e98d5fef8556f1da7f903fd1908feed84bb0f90d'>Diffstat</a> (limited to 'drivers/usb/gadget/function/uvc.h')</div><table summary='diffstat' class='diffstat'>