1<html><head><meta http-equiv="Content-Type" content="text/html; charset=ANSI_X3.4-1968"><title>__scsi_device_lookup_by_target</title><meta name="generator" content="DocBook XSL Stylesheets V1.78.1"><link rel="home" href="index.html" title="SCSI Interfaces Guide"><link rel="up" href="mid_layer.html#scsi.c" title="drivers/scsi/scsi.c"><link rel="prev" href="API---starget-for-each-device.html" title="__starget_for_each_device"><link rel="next" href="API-scsi-device-lookup-by-target.html" title="scsi_device_lookup_by_target"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center"><span class="phrase">__scsi_device_lookup_by_target</span></th></tr><tr><td width="20%" align="left"><a accesskey="p" href="API---starget-for-each-device.html">Prev</a>&#160;</td><th width="60%" align="center">drivers/scsi/scsi.c</th><td width="20%" align="right">&#160;<a accesskey="n" href="API-scsi-device-lookup-by-target.html">Next</a></td></tr></table><hr></div><div class="refentry"><a name="API---scsi-device-lookup-by-target"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>__scsi_device_lookup_by_target &#8212; 
2     find a device given the target (UNLOCKED)
3 </p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="funcsynopsis"><table border="0" class="funcprototype-table" summary="Function synopsis" style="cellspacing: 0; cellpadding: 0;"><tr><td><code class="funcdef">struct scsi_device * <b class="fsfunc">__scsi_device_lookup_by_target </b>(</code></td><td>struct scsi_target * <var class="pdparam">starget</var>, </td></tr><tr><td>&#160;</td><td>u64 <var class="pdparam">lun</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer">&#160;</div></div></div><div class="refsect1"><a name="idp1123584532"></a><h2>Arguments</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="parameter"><code>starget</code></em></span></dt><dd><p>
4     SCSI target pointer
5    </p></dd><dt><span class="term"><em class="parameter"><code>lun</code></em></span></dt><dd><p>
6     SCSI Logical Unit Number
7    </p></dd></dl></div></div><div class="refsect1"><a name="idp1123587092"></a><h2>Description</h2><p>
8   Looks up the scsi_device with the specified <em class="parameter"><code>lun</code></em> for a given
9   <em class="parameter"><code>starget</code></em>.  The returned scsi_device does not have an additional
10   reference.  You must hold the host's host_lock over this call and
11   any access to the returned scsi_device. A scsi_device in state
12   SDEV_DEL is skipped.
13</p></div><div class="refsect1"><a name="idp1123588572"></a><h2>Note</h2><p>
14   The only reason why drivers should use this is because
15   they need to access the device list in irq context.  Otherwise you
16   really want to use scsi_device_lookup_by_target instead.
17</p></div></div><div class="navfooter"><hr><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="API---starget-for-each-device.html">Prev</a>&#160;</td><td width="20%" align="center"><a accesskey="u" href="mid_layer.html#scsi.c">Up</a></td><td width="40%" align="right">&#160;<a accesskey="n" href="API-scsi-device-lookup-by-target.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="phrase">__starget_for_each_device</span>&#160;</td><td width="20%" align="center"><a accesskey="h" href="index.html">Home</a></td><td width="40%" align="right" valign="top">&#160;<span class="phrase">scsi_device_lookup_by_target</span></td></tr></table></div></body></html>
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