/*
 * Because linux/module.h has tracepoints in the header, and ftrace.h
 * used to include this file, define_trace.h includes linux/module.h
 * But we do not want the module.h to override the TRACE_SYSTEM macro
 * variable that define_trace.h is processing, so we only set it
 * when module events are being processed, which would happen when
 * CREATE_TRACE_POINTS is defined.
 */
#ifdef CREATE_TRACE_POINTS
#undef TRACE_SYSTEM
#define TRACE_SYSTEM module
#endif

#if !defined(_TRACE_MODULE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_MODULE_H

#include <linux/tracepoint.h>

#ifdef CONFIG_MODULES

struct module;

#define show_module_flags(flags) __print_flags(flags, "",	\
	{ (1UL << TAINT_PROPRIETARY_MODULE),	"P" },		\
	{ (1UL << TAINT_OOT_MODULE),		"O" },		\
	{ (1UL << TAINT_FORCED_MODULE),		"F" },		\
	{ (1UL << TAINT_CRAP),			"C" },		\
	{ (1UL << TAINT_UNSIGNED_MODULE),	"E" })

TRACE_EVENT(module_load,

	TP_PROTO(struct module *mod),

	TP_ARGS(mod),

	TP_STRUCT__entry(
		__field(	unsigned int,	taints		)
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__entry->taints = mod->taints;
		__assign_str(name, mod->name);
	),

	TP_printk("%s %s", __get_str(name), show_module_flags(__entry->taints))
);

TRACE_EVENT(module_free,

	TP_PROTO(struct module *mod),

	TP_ARGS(mod),

	TP_STRUCT__entry(
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__assign_str(name, mod->name);
	),

	TP_printk("%s", __get_str(name))
);

#ifdef CONFIG_MODULE_UNLOAD
/* trace_module_get/put are only used if CONFIG_MODULE_UNLOAD is defined */

DECLARE_EVENT_CLASS(module_refcnt,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip),

	TP_STRUCT__entry(
		__field(	unsigned long,	ip		)
		__field(	int,		refcnt		)
		__string(	name,		mod->name	)
	),

	TP_fast_assign(
		__entry->ip	= ip;
		__entry->refcnt	= atomic_read(&mod->refcnt);
		__assign_str(name, mod->name);
	),

	TP_printk("%s call_site=%ps refcnt=%d",
		  __get_str(name), (void *)__entry->ip, __entry->refcnt)
);

DEFINE_EVENT(module_refcnt, module_get,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip)
);

DEFINE_EVENT(module_refcnt, module_put,

	TP_PROTO(struct module *mod, unsigned long ip),

	TP_ARGS(mod, ip)
);
#endif /* CONFIG_MODULE_UNLOAD */

TRACE_EVENT(module_request,

	TP_PROTO(char *name, bool wait, unsigned long ip),

	TP_ARGS(name, wait, ip),

	TP_STRUCT__entry(
		__field(	unsigned long,	ip		)
		__field(	bool,		wait		)
		__string(	name,		name		)
	),

	TP_fast_assign(
		__entry->ip	= ip;
		__entry->wait	= wait;
		__assign_str(name, name);
	),

	TP_printk("%s wait=%d call_site=%ps",
		  __get_str(name), (int)__entry->wait, (void *)__entry->ip)
);

#endif /* CONFIG_MODULES */

#endif /* _TRACE_MODULE_H */

/* This part must be outside protection */
#include <trace/define_trace.h>
pe='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=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>xen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/xen/events.h?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>events.h</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='dfef358bd1beb4e7b5c94eca944be9cd23dfc752'/><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>Christoph Hellwig &lt;hch@lst.de&gt;</td><td class='right'>2017-01-30 13:15:41 +0100</td></tr>
<tr><th>committer</th><td>Bjorn Helgaas &lt;bhelgaas@google.com&gt;</td><td class='right'>2017-02-02 10:35:46 -0600</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/events.h?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>dfef358bd1beb4e7b5c94eca944be9cd23dfc752</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/xen/events.h?id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>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=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>b9a2afb38a4c2ac8ad31f49ec0d71fe9e5b1994c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/xen/events.h?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>include/xen/events.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/xen/events.h?h=nds-private-remove&amp;id=030305d69fc6963c16003f50d7e8d74b02d0a143'>030305d69fc6963c16003f50d7e8d74b02d0a143</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/xen/events.h?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752&amp;id2=030305d69fc6963c16003f50d7e8d74b02d0a143'>diff</a>)</td></tr></table>
<div class='commit-subject'>PCI/MSI: Don't apply affinity if there aren't enough vectors left</div><div class='commit-msg'>Bart reported a problem wіth an out of bounds access in the low-level IRQ
affinity code, which we root caused to the qla2xxx driver assigning all its
MSI-X vectors to the pre and post vectors, and not having any left for the
actually spread IRQs.

Fix this issue by not asking for affinity assignment when there are no
vectors to assign left.

Fixes: 402723ad5c62 ("PCI/MSI: Provide pci_alloc_irq_vectors_affinity()")
Link: https://lkml.kernel.org/r/1485359225.3093.3.camel@sandisk.com
Reported-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Tested-by: Bart Van Assche &lt;bart.vanassche@sandisk.com&gt;
Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Signed-off-by: Bjorn Helgaas &lt;bhelgaas@google.com&gt;</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?h=nds-private-remove&amp;id=dfef358bd1beb4e7b5c94eca944be9cd23dfc752'>Diffstat</a> (limited to 'include/xen/events.h')</div><table summary='diffstat' class='diffstat'>