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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/4527/">https://reviewboard.asterisk.org/r/4527/</a>
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<p style="margin-top: 0;">On March 26th, 2015, 6:52 p.m. CET, <b>Diederik de Groot</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/4527/diff/1/?file=72928#file72928line2026" style="color: black; font-weight: bold; text-decoration: underline;">/branches/13/channels/chan_iax2.c</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static inline struct iax2_peer *peer_unref(struct iax2_peer *peer)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2026</font></th>
<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">#if 0 /* unused */</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static inline struct iax2_user *user_ref(struct iax2_user *user)</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static inline struct iax2_user *user_ref(struct iax2_user *user)</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">{</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ao2_ref(user, +1);</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>ao2_ref(user, +1);</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>return user;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span>return user;</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">}</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">#endif</pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">user_ref function not being used, may/might actually indicate a refcount issue.
Because of the simple nature of these two functions, they could as well be implemented using
#define user_ref(_USER) ao2_ref(_USER, +1)
#define user_unref(_USER) ao2_ref(_USER, -1)
instead. Which would not have generated this unused warning, and after compilation they would both result in the same code (inline).</pre>
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<p>On March 27th, 2015, 2:06 a.m. CET, <b>Matt Jordan</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">It doesn't necessarily indicate a ref count issue. Having a wrapper around the ao2 calls is useful when you have a particular tag you always to apply, or some additional debugging - but the fact that it isn't being used isn't necessarily indicative of a coding error elsewhere.
I'd just remove this, since it isn't being used. If chan_iax2 ends up needing a user_ref wrapper, then we can always add something like it at a future date.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">That's why i used the word 'may/might' ;-) I have not checked all of the refs/unrefs to see if there actually was an issue. And because it is in chan_iax2.c chances would be pretty low, that there is/was one.</pre>
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<p>- Diederik</p>
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<p>On March 27th, 2015, 11:46 a.m. CET, Diederik de Groot wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Diederik de Groot.</div>
<p style="color: grey;"><i>Updated March 27, 2015, 11:46 a.m.</i></p>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-24917">ASTERISK-24917</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">clang's static analyzer will throw quite a number warnings / errors during compilation, some of which can be very helpfull in finding corner-case bugs
clang compiler warning:-Wunused-function</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/branches/13/main/dsp.c <span style="color: grey">(433444)</span></li>
<li>/branches/13/main/config.c <span style="color: grey">(433470)</span></li>
<li>/branches/13/channels/chan_iax2.c <span style="color: grey">(433444)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4527/diff/" style="margin-left: 3em;">View Diff</a></p>
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