#include <linux/bio.h>
#include <linux/io.h>
#include <linux/export.h>
#include <xen/page.h>

bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
			       const struct bio_vec *vec2)
{
#if XEN_PAGE_SIZE == PAGE_SIZE
	unsigned long bfn1 = pfn_to_bfn(page_to_pfn(vec1->bv_page));
	unsigned long bfn2 = pfn_to_bfn(page_to_pfn(vec2->bv_page));

	return __BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&
		((bfn1 == bfn2) || ((bfn1+1) == bfn2));
#else
	/*
	 * XXX: Add support for merging bio_vec when using different page
	 * size in Xen and Linux.
	 */
	return 0;
#endif
}
EXPORT_SYMBOL(xen_biovec_phys_mergeable);
d='header'>
<tr>
<td class='logo' rowspan='2'><a href='/cgit.cgi/'><img src='/cgit.png' alt='cgit logo'/></a></td>
<td class='main'><a href='/cgit.cgi/'>index</a> : <a href='/cgit.cgi/linux/net-next.git/'>net-next.git</a></td><td class='form'><form method='get'>
<input type='hidden' name='id' value='cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'/><select name='h' onchange='this.form.submit();'>
<option value='emaclite-cleanup'>emaclite-cleanup</option>
<option value='master' selected='selected'>master</option>
<option value='nds-private-remove'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input 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=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/drivers/usb/core/devices.c'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/core/devices.c?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/core/devices.c?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>commit</a><a class='active' href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/core/devices.c?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/drivers/usb/core/devices.c'>
<input type='hidden' name='id' value='cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'/><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/diff/?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>root</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>drivers</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>usb</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/core?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>core</a>/<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/core/devices.c?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>devices.c</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'/><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><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=cd44691f7177b2c1e1509d1a17d9b198ebaa34eb'>Diffstat</a> (limited to 'drivers/usb/core/devices.c')</div><table summary='diffstat' class='diffstat'>