#ifndef __ASM_GENERIC_CMPXCHG_LOCAL_H
#define __ASM_GENERIC_CMPXCHG_LOCAL_H

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

extern unsigned long wrong_size_cmpxchg(volatile void *ptr)
	__noreturn;

/*
 * Generic version of __cmpxchg_local (disables interrupts). Takes an unsigned
 * long parameter, supporting various types of architectures.
 */
static inline unsigned long __cmpxchg_local_generic(volatile void *ptr,
		unsigned long old, unsigned long new, int size)
{
	unsigned long flags, prev;

	/*
	 * Sanity checking, compile-time.
	 */
	if (size == 8 && sizeof(unsigned long) != 8)
		wrong_size_cmpxchg(ptr);

	raw_local_irq_save(flags);
	switch (size) {
	case 1: prev = *(u8 *)ptr;
		if (prev == old)
			*(u8 *)ptr = (u8)new;
		break;
	case 2: prev = *(u16 *)ptr;
		if (prev == old)
			*(u16 *)ptr = (u16)new;
		break;
	case 4: prev = *(u32 *)ptr;
		if (prev == old)
			*(u32 *)ptr = (u32)new;
		break;
	case 8: prev = *(u64 *)ptr;
		if (prev == old)
			*(u64 *)ptr = (u64)new;
		break;
	default:
		wrong_size_cmpxchg(ptr);
	}
	raw_local_irq_restore(flags);
	return prev;
}

/*
 * Generic version of __cmpxchg64_local. Takes an u64 parameter.
 */
static inline u64 __cmpxchg64_local_generic(volatile void *ptr,
		u64 old, u64 new)
{
	u64 prev;
	unsigned long flags;

	raw_local_irq_save(flags);
	prev = *(u64 *)ptr;
	if (prev == old)
		*(u64 *)ptr = new;
	raw_local_irq_restore(flags);
	return prev;
}

#endif
b right'>Tobias Klauser</td></tr></table>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=b60a00f9c5f14695991cb77dce7e926623269d88'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=b60a00f9c5f14695991cb77dce7e926623269d88'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi?h=nds-private-remove&amp;id=b60a00f9c5f14695991cb77dce7e926623269d88'>uapi</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/sound?h=nds-private-remove&amp;id=b60a00f9c5f14695991cb77dce7e926623269d88'>sound</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/uapi/sound?h=nds-private-remove&amp;id=b60a00f9c5f14695991cb77dce7e926623269d88&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
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<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-30 09:29:50 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2016-12-30 09:29:50 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/tegra/pmc.h?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>f3de082c12e5e9ff43c58a7561f6ec3272d03a48</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/soc/tegra/pmc.h?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>8aa8afa56af93cb9f72997a57ee4db6330431f14</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/soc/tegra/pmc.h?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>include/soc/tegra/pmc.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/tegra/pmc.h?id=98473f9f3f9bd404873cd1178c8be7d6d619f0d1'>98473f9f3f9bd404873cd1178c8be7d6d619f0d1</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/soc/tegra/pmc.h?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48&amp;id2=98473f9f3f9bd404873cd1178c8be7d6d619f0d1'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/soc/tegra/pmc.h?id=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>02608e02fbec04fccf2eb0cc8d8082f65c0a4286</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/soc/tegra/pmc.h?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48&amp;id2=02608e02fbec04fccf2eb0cc8d8082f65c0a4286'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6</div><div class='commit-msg'>Pull crypto fix from Herbert Xu:
 "This fixes a boot failure on some platforms when crypto self test is
  enabled along with the new acomp interface"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: testmgr - Use heap buffer for acomp test input
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=f3de082c12e5e9ff43c58a7561f6ec3272d03a48'>Diffstat</a> (limited to 'include/soc/tegra/pmc.h')</div><table summary='diffstat' class='diffstat'>