tracing: Fix event format export
commit811cb50baf63461ce0bdb234927046131fc7fa8b
authorJohannes Berg <johannes@sipsolutions.net>
Fri, 13 Nov 2009 22:40:09 +0000 (13 23:40 +0100)
committerSteven Rostedt <rostedt@goodmis.org>
Sat, 14 Nov 2009 03:20:34 +0000 (13 22:20 -0500)
treeea161607e94f11754048c8769b37f58d55fe8de6
parenta646365cc330b5aaf4452c91f61b1e0d1acf68d0
tracing: Fix event format export

For some reason the export of the event print format to userspace
uses '#fmt' which breaks if the format string is anything but a plain
string, for example if it is built with macros then the macro names
are exported instead of their contents.

Use
"\"%s\"", fmt
instead of
"%s", #fmt
to export the string and not the way it is built.

For example, in net/mac80211/driver-trace.h for the trace event drv_start
there is:

        TP_printk(
                LOCAL_PR_FMT, LOCAL_PR_ARG
        )

Which use to produce:

 print fmt: LOCAL_PR_FMT, REC->wiphy_name

Now produces:

 print fmt: "%s", REC->wiphy_name

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
LKML-Reference: <20091113224009.GB23942@elte.hu>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
include/trace/ftrace.h