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authorJiri Slaby <jslaby@suse.cz>2014-02-24 19:59:58 +0100
committerSteven Rostedt <rostedt@goodmis.org>2014-03-07 10:06:13 -0500
commitaf64a7cb09db77344c596a0bf3d57d77257e8bf5 (patch)
tree9bfca2ea8870ed23eb49dca85303ec49752217a7 /Documentation/trace
parentc867ccd8388d1c1a31bef9c54544b2ef32f0ebca (diff)
downloadlinux-af64a7cb09db77344c596a0bf3d57d77257e8bf5.tar.gz
ftrace: Pass retval through return in ftrace_dyn_arch_init()
No architecture uses the "data" parameter in ftrace_dyn_arch_init() in any
way, it just sets the value to 0. And this is used as a return value
in the caller -- ftrace_init, which just checks the retval against
zero.

Note there is also "return 0" in every ftrace_dyn_arch_init.  So it is
enough to check the retval and remove all the indirect sets of data on
all archs.

Link: http://lkml.kernel.org/r/1393268401-24379-3-git-send-email-jslaby@suse.cz

Cc: linux-arch@vger.kernel.org
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'Documentation/trace')
-rw-r--r--Documentation/trace/ftrace-design.txt3
1 files changed, 0 insertions, 3 deletions
diff --git a/Documentation/trace/ftrace-design.txt b/Documentation/trace/ftrace-design.txt
index 79fcafc7fd64..117168884023 100644
--- a/Documentation/trace/ftrace-design.txt
+++ b/Documentation/trace/ftrace-design.txt
@@ -360,9 +360,6 @@ function below should be sufficient for most people:
 
 int __init ftrace_dyn_arch_init(void *data)
 {
-	/* return value is done indirectly via data */
-	*(unsigned long *)data = 0;
-
 	return 0;
 }