linux/include/trace
Johannes Berg 811cb50baf 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>
2009-11-13 22:20:34 -05:00
..
events Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2009-10-04 12:39:14 -07:00
boot.h tracing/fastboot: include missing headers 2008-12-12 09:26:13 +01:00
define_trace.h tracing: Undef TRACE_EVENT_FN between trace events headers inclusion 2009-08-27 18:32:54 +02:00
ftrace.h tracing: Fix event format export 2009-11-13 22:20:34 -05:00
power.h tracing: replace TP<var> with TP_<var> 2009-03-10 00:35:04 -04:00
syscall.h tracing: Create generic syscall TRACE_EVENTs 2009-08-26 00:41:48 +02:00