mmiotrace: add user documentation

Signed-off-by: Pekka Paalanen <pq@iki.fi>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 3 insertions, 5 deletions

diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 1d6de0d67f99..b28ace2be1a3 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -180,12 +180,10 @@ config MMIOTRACE
         help
           Mmiotrace traces Memory Mapped I/O access and is meant for
           debugging and reverse engineering. It is called from the ioremap
-          implementation and works via page faults. A user space program is
-          required to collect the MMIO data from debugfs files.
-          Tracing is disabled by default and can be enabled from a debugfs
-          file.
+          implementation and works via page faults. Tracing is disabled by
+          default and can be enabled run-time.
 
-          See http://nouveau.freedesktop.org/wiki/MmioTrace
+          See Documentation/tracers/mmiotrace.txt.
           If you are not helping to develop drivers, say N.
 
 config MMIOTRACE_TEST