#if defined(__i386__) || defined(__x86_64__)

#include <helpers/helpers.h>

/*
 * pci_acc_init
 *
 * PCI access helper function depending on libpci
 *
 * **pacc : if a valid pci_dev is returned
 *         *pacc must be passed to pci_acc_cleanup to free it
 *
 * domain: domain
 * bus:    bus
 * slot:   slot
 * func:   func
 * vendor: vendor
 * device: device
 * Pass -1 for one of the six above to match any
 *
 * Returns :
 * struct pci_dev which can be used with pci_{read,write}_* functions
 *                to access the PCI config space of matching pci devices
 */
struct pci_dev *pci_acc_init(struct pci_access **pacc, int domain, int bus,
			     int slot, int func, int vendor, int dev)
{
	struct pci_filter filter_nb_link;
	struct pci_dev *device;

	*pacc = pci_alloc();
	if (*pacc == NULL)
		return NULL;

	pci_filter_init(*pacc, &filter_nb_link);
	filter_nb_link.domain	= domain;
	filter_nb_link.bus	= bus;
	filter_nb_link.slot	= slot;
	filter_nb_link.func	= func;
	filter_nb_link.vendor	= vendor;
	filter_nb_link.device	= dev;

	pci_init(*pacc);
	pci_scan_bus(*pacc);

	for (device = (*pacc)->devices; device; device = device->next) {
		if (pci_filter_match(&filter_nb_link, device))
			return device;
	}
	pci_cleanup(*pacc);
	return NULL;
}

/* Typically one wants to get a specific slot(device)/func of the root domain
   and bus */
struct pci_dev *pci_slot_func_init(struct pci_access **pacc, int slot,
				       int func)
{
	return pci_acc_init(pacc, 0, 0, slot, func, -1, -1);
}

#endif /* defined(__i386__) || defined(__x86_64__) */
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>pci</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/oxygen?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>oxygen</a>/<a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/oxygen/xonar_dg.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>xonar_dg.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='eeeefd41843218c55a8782a6920f044d9bf6207a'/><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'>2017-02-05 18:10:35 +0100</td></tr>
<tr><th>committer</th><td>Jens Axboe &lt;axboe@fb.com&gt;</td><td class='right'>2017-02-06 09:34:46 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/oxygen/xonar_dg.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>eeeefd41843218c55a8782a6920f044d9bf6207a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/sound/pci/oxygen/xonar_dg.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>c342eac46626e62745aa8e1a982626efca8b121d</a> /<a href='/cgit.cgi/linux/net-next.git/tree/sound/pci/oxygen/xonar_dg.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>sound/pci/oxygen/xonar_dg.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/sound/pci/oxygen/xonar_dg.h?id=c14024dbb156c8392908aaa822097d27c6af8ec8'>c14024dbb156c8392908aaa822097d27c6af8ec8</a> (<a href='/cgit.cgi/linux/net-next.git/diff/sound/pci/oxygen/xonar_dg.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a&amp;id2=c14024dbb156c8392908aaa822097d27c6af8ec8'>diff</a>)</td></tr></table>
<div class='commit-subject'>block: don't try Write Same from __blkdev_issue_zeroout</div><div class='commit-msg'>Write Same can return an error asynchronously if it turns out the
underlying SCSI device does not support Write Same, which makes a
proper fallback to other methods in __blkdev_issue_zeroout impossible.
Thus only issue a Write Same from blkdev_issue_zeroout an don't try it
at all from __blkdev_issue_zeroout as a non-invasive workaround.

Signed-off-by: Christoph Hellwig &lt;hch@lst.de&gt;
Reported-by: Junichi Nomura &lt;j-nomura@ce.jp.nec.com&gt;
Fixes: e73c23ff ("block: add async variant of blkdev_issue_zeroout")
Tested-by: Junichi Nomura &lt;j-nomura@ce.jp.nec.com&gt;
Signed-off-by: Jens Axboe &lt;axboe@fb.com&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>Diffstat</a> (limited to 'sound/pci/oxygen/xonar_dg.h')</div><table summary='diffstat' class='diffstat'>