#ifndef __UNWIND_H
#define __UNWIND_H

#include <linux/types.h>
#include "event.h"
#include "symbol.h"
#include "thread.h"

struct unwind_entry {
	struct map	*map;
	struct symbol	*sym;
	u64		ip;
};

typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);

struct unwind_libunwind_ops {
	int (*prepare_access)(struct thread *thread);
	void (*flush_access)(struct thread *thread);
	void (*finish_access)(struct thread *thread);
	int (*get_entries)(unwind_entry_cb_t cb, void *arg,
			   struct thread *thread,
			   struct perf_sample *data, int max_stack);
};

#ifdef HAVE_DWARF_UNWIND_SUPPORT
int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
			struct thread *thread,
			struct perf_sample *data, int max_stack);
/* libunwind specific */
#ifdef HAVE_LIBUNWIND_SUPPORT
#ifndef LIBUNWIND__ARCH_REG_ID
#define LIBUNWIND__ARCH_REG_ID(regnum) libunwind__arch_reg_id(regnum)
#endif

#ifndef LIBUNWIND__ARCH_REG_SP
#define LIBUNWIND__ARCH_REG_SP PERF_REG_SP
#endif

#ifndef LIBUNWIND__ARCH_REG_IP
#define LIBUNWIND__ARCH_REG_IP PERF_REG_IP
#endif

int LIBUNWIND__ARCH_REG_ID(int regnum);
int unwind__prepare_access(struct thread *thread, struct map *map,
			   bool *initialized);
void unwind__flush_access(struct thread *thread);
void unwind__finish_access(struct thread *thread);
#else
static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
					 struct map *map __maybe_unused,
					 bool *initialized __maybe_unused)
{
	return 0;
}

static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
#endif
#else
static inline int
unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
		    void *arg __maybe_unused,
		    struct thread *thread __maybe_unused,
		    struct perf_sample *data __maybe_unused,
		    int max_stack __maybe_unused)
{
	return 0;
}

static inline int unwind__prepare_access(struct thread *thread __maybe_unused,
					 struct map *map __maybe_unused,
					 bool *initialized __maybe_unused)
{
	return 0;
}

static inline void unwind__flush_access(struct thread *thread __maybe_unused) {}
static inline void unwind__finish_access(struct thread *thread __maybe_unused) {}
#endif /* HAVE_DWARF_UNWIND_SUPPORT */
#endif /* __UNWIND_H */
t' action='/cgit.cgi/linux/net-next.git/log/net/mac80211/mesh.c'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>mac80211</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/mesh.c?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>mesh.c</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='33e962c8871f015f5c8978384553dddcf5b81b22'/><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>Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;</td><td class='right'>2017-01-29 12:40:52 +0100</td></tr>
<tr><th>committer</th><td>Kalle Valo &lt;kvalo@codeaurora.org&gt;</td><td class='right'>2017-01-31 09:08:52 +0200</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/mesh.c?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>33e962c8871f015f5c8978384553dddcf5b81b22</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/mac80211/mesh.c?id=33e962c8871f015f5c8978384553dddcf5b81b22'>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=33e962c8871f015f5c8978384553dddcf5b81b22'>43aff96c2ee21d9e0fa2018457778a4de52053cd</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/mac80211/mesh.c?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>net/mac80211/mesh.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/mac80211/mesh.c?h=nds-private-remove&amp;id=575ddce0507789bf9830d089557d2199d2f91865'>575ddce0507789bf9830d089557d2199d2f91865</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/mac80211/mesh.c?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22&amp;id2=575ddce0507789bf9830d089557d2199d2f91865'>diff</a>)</td></tr></table>
<div class='commit-subject'>rt2x00: fix clk_get call</div><div class='commit-msg'>clk_get() takes two arguments and might return ERR_PTR(), so we
have to nullify pointer on that case, to do not break further call
to clk_get_rate().

Reported-by: Felix Fietkau &lt;nbd@nbd.name&gt;
Fixes: 34db70b92fae ("rt2x00: add copy of clk for soc devices")
Signed-off-by: Stanislaw Gruszka &lt;sgruszka@redhat.com&gt;
Signed-off-by: Kalle Valo &lt;kvalo@codeaurora.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=33e962c8871f015f5c8978384553dddcf5b81b22'>Diffstat</a> (limited to 'net/mac80211/mesh.c')</div><table summary='diffstat' class='diffstat'>