/*
 *  linux/lib/kasprintf.c
 *
 *  Copyright (C) 1991, 1992  Linus Torvalds
 */

#include <stdarg.h>
#include <linux/export.h>
#include <linux/slab.h>
#include <linux/types.h>
#include <linux/string.h>

/* Simplified asprintf. */
char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
{
	unsigned int first, second;
	char *p;
	va_list aq;

	va_copy(aq, ap);
	first = vsnprintf(NULL, 0, fmt, aq);
	va_end(aq);

	p = kmalloc_track_caller(first+1, gfp);
	if (!p)
		return NULL;

	second = vsnprintf(p, first+1, fmt, ap);
	WARN(first != second, "different return values (%u and %u) from vsnprintf(\"%s\", ...)",
	     first, second, fmt);

	return p;
}
EXPORT_SYMBOL(kvasprintf);

/*
 * If fmt contains no % (or is exactly %s), use kstrdup_const. If fmt
 * (or the sole vararg) points to rodata, we will then save a memory
 * allocation and string copy. In any case, the return value should be
 * freed using kfree_const().
 */
const char *kvasprintf_const(gfp_t gfp, const char *fmt, va_list ap)
{
	if (!strchr(fmt, '%'))
		return kstrdup_const(fmt, gfp);
	if (!strcmp(fmt, "%s"))
		return kstrdup_const(va_arg(ap, const char*), gfp);
	return kvasprintf(gfp, fmt, ap);
}
EXPORT_SYMBOL(kvasprintf_const);

char *kasprintf(gfp_t gfp, const char *fmt, ...)
{
	va_list ap;
	char *p;

	va_start(ap, fmt);
	p = kvasprintf(gfp, fmt, ap);
	va_end(ap);

	return p;
}
EXPORT_SYMBOL(kasprintf);
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/'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/net/sunrpc/xprtrdma/svc_rdma_marshal.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/net/sunrpc/xprtrdma/svc_rdma_marshal.c'>
<input type='hidden' name='id' value='aaaec6fc755447a1d056765b11b24d8ff2b81366'/><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/?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>sunrpc</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>xprtrdma</a>/<a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>svc_rdma_marshal.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='aaaec6fc755447a1d056765b11b24d8ff2b81366'/><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>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 19:03:21 +0100</td></tr>
<tr><th>committer</th><td>Thomas Gleixner &lt;tglx@linutronix.de&gt;</td><td class='right'>2017-01-31 20:22:18 +0100</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>aaaec6fc755447a1d056765b11b24d8ff2b81366</a> (<a href='/cgit.cgi/linux/net-next.git/patch/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>a7f4167960ee1df86739905b6ccdeb95465bfe5f</a> /<a href='/cgit.cgi/linux/net-next.git/tree/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>net/sunrpc/xprtrdma/svc_rdma_marshal.c</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>08d85f3ea99f1eeafc4e8507936190e86a16ee8c</a> (<a href='/cgit.cgi/linux/net-next.git/diff/net/sunrpc/xprtrdma/svc_rdma_marshal.c?id=aaaec6fc755447a1d056765b11b24d8ff2b81366&amp;id2=08d85f3ea99f1eeafc4e8507936190e86a16ee8c'>diff</a>)</td></tr></table>
<div class='commit-subject'>x86/irq: Make irq activate operations symmetric</div><div class='commit-msg'>The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.

Fix it by deactivating the interrupt before activating the new configuration.

Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith &lt;efault@gmx.de&gt;
Reported-and-tested-by: Borislav Petkov &lt;bp@alien8.de&gt;
Signed-off-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Cc: Andrey Ryabinin &lt;aryabinin@virtuozzo.com&gt;
Cc: Marc Zyngier &lt;marc.zyngier@arm.com&gt;
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos

</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=aaaec6fc755447a1d056765b11b24d8ff2b81366'>Diffstat</a> (limited to 'net/sunrpc/xprtrdma/svc_rdma_marshal.c')</div><table summary='diffstat' class='diffstat'>