#include <linux/zutil.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/vmalloc.h>

/* Utility function: initialize zlib, unpack binary blob, clean up zlib,
 * return len or negative error code.
 */
int zlib_inflate_blob(void *gunzip_buf, unsigned int sz,
		      const void *buf, unsigned int len)
{
	const u8 *zbuf = buf;
	struct z_stream_s *strm;
	int rc;

	rc = -ENOMEM;
	strm = kmalloc(sizeof(*strm), GFP_KERNEL);
	if (strm == NULL)
		goto gunzip_nomem1;
	strm->workspace = kmalloc(zlib_inflate_workspacesize(), GFP_KERNEL);
	if (strm->workspace == NULL)
		goto gunzip_nomem2;

	/* gzip header (1f,8b,08... 10 bytes total + possible asciz filename)
	 * expected to be stripped from input
	 */
	strm->next_in = zbuf;
	strm->avail_in = len;
	strm->next_out = gunzip_buf;
	strm->avail_out = sz;

	rc = zlib_inflateInit2(strm, -MAX_WBITS);
	if (rc == Z_OK) {
		rc = zlib_inflate(strm, Z_FINISH);
		/* after Z_FINISH, only Z_STREAM_END is "we unpacked it all" */
		if (rc == Z_STREAM_END)
			rc = sz - strm->avail_out;
		else
			rc = -EINVAL;
		zlib_inflateEnd(strm);
	} else
		rc = -EINVAL;

	kfree(strm->workspace);
gunzip_nomem2:
	kfree(strm);
gunzip_nomem1:
	return rc; /* returns Z_OK (0) if successful */
}
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=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>refs</a><a href='/cgit.cgi/linux/net-next.git/log/include/net/udp.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/net/udp.h'>
<input type='hidden' name='id' value='23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'/><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=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>net</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>udp.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 09:56:15 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-08 09:56:15 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>4aff32d5f2f6fe2f54028bfd4d1b66fdd2f8d281</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>include/net/udp.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/udp.h?id=926af6273fc683cd98cd0ce7bf0d04a02eed6742'>926af6273fc683cd98cd0ce7bf0d04a02eed6742</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b&amp;id2=926af6273fc683cd98cd0ce7bf0d04a02eed6742'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/net/udp.h?id=eeeefd41843218c55a8782a6920f044d9bf6207a'>eeeefd41843218c55a8782a6920f044d9bf6207a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/net/udp.h?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b&amp;id2=eeeefd41843218c55a8782a6920f044d9bf6207a'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.dk/linux-block</div><div class='commit-msg'>Pull block fix from Jens Axboe:
 "A single fix that should go into 4.10, fixing a regression on some
  devices with the WRITE_SAME command"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: don't try Write Same from __blkdev_issue_zeroout
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=23fbe2cdc1de80120cf9ccd478ac57c3a3a0764b'>Diffstat</a> (limited to 'include/net/udp.h')</div><table summary='diffstat' class='diffstat'>