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authorTakashi Iwai <tiwai@suse.de>2005-10-10 11:46:31 +0200
committerJaroslav Kysela <perex@suse.cz>2005-11-04 13:17:42 +0100
commit7c22f1aaa23370bf9ba2dd3abbccbed70dced216 (patch)
treeebc9c1e5cfdab4815afdfab1ba583e6220287252 /Documentation
parentf01cc521a2abef5dba24fb0873b9626ba6b0a0a5 (diff)
downloadop-kernel-dev-7c22f1aaa23370bf9ba2dd3abbccbed70dced216.zip
op-kernel-dev-7c22f1aaa23370bf9ba2dd3abbccbed70dced216.tar.gz
[ALSA] Remove snd_runtime_check() macro
Remove snd_runtime_check() macro. This macro worsens the readability of codes. They should be either normal if() or removable asserts. Also, the assert displays stack-dump, instead of only the last caller pointer. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl33
1 files changed, 12 insertions, 21 deletions
diff --git a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
index 24e8552..f3a2fdc 100644
--- a/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
+++ b/Documentation/sound/alsa/DocBook/writing-an-alsa-driver.tmpl
@@ -18,8 +18,8 @@
</affiliation>
</author>
- <date>March 6, 2005</date>
- <edition>0.3.4</edition>
+ <date>October 6, 2005</date>
+ <edition>0.3.5</edition>
<abstract>
<para>
@@ -30,7 +30,7 @@
<legalnotice>
<para>
- Copyright (c) 2002-2004 Takashi Iwai <email>tiwai@suse.de</email>
+ Copyright (c) 2002-2005 Takashi Iwai <email>tiwai@suse.de</email>
</para>
<para>
@@ -5998,32 +5998,23 @@ struct _snd_pcm_runtime {
The first argument is the expression to evaluate, and the
second argument is the action if it fails. When
<constant>CONFIG_SND_DEBUG</constant>, is set, it will show an
- error message such as <computeroutput>BUG? (xxx) (called from
- yyy)</computeroutput>. When no debug flag is set, this is
- ignored.
+ error message such as <computeroutput>BUG? (xxx)</computeroutput>
+ together with stack trace.
</para>
- </section>
-
- <section id="useful-functions-snd-runtime-check">
- <title><function>snd_runtime_check()</function></title>
<para>
- This macro is quite similar with
- <function>snd_assert()</function>. Unlike
- <function>snd_assert()</function>, the expression is always
- evaluated regardless of
- <constant>CONFIG_SND_DEBUG</constant>. When
- <constant>CONFIG_SND_DEBUG</constant> is set, the macro will
- show a message like <computeroutput>ERROR (xx) (called from
- yyy)</computeroutput>.
+ When no debug flag is set, this macro is ignored.
</para>
</section>
<section id="useful-functions-snd-bug">
<title><function>snd_BUG()</function></title>
<para>
- It calls <function>snd_assert(0,)</function> -- that is, just
- prints the error message at the point. It's useful to show that
- a fatal error happens there.
+ It shows <computeroutput>BUG?</computeroutput> message and
+ stack trace as well as <function>snd_assert</function> at the point.
+ It's useful to show that a fatal error happens there.
+ </para>
+ <para>
+ When no debug flag is set, this macro is ignored.
</para>
</section>
</chapter>
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