Documentation: add ARM user_debug to kernel-parameters.txt

Usually kernel parameters are documented in kernel-parameters.txt
but user_debug is only documented in the Kconfig. Document the
option and point to the Kconfig help text for more info.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 78926aa2531cd36691e154a06fcfbed831726b04..246b132dcc90b18572ef12965a8f41ae5e72af0d 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2635,6 +2635,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                        medium is write-protected).
                        Example: quirks=0419:aaf5:rl,0421:0433:rc
 
+       user_debug=     [KNL,ARM]
+                       Format: <int>
+                       See arch/arm/Kconfig.debug help text.
+                                1 - undefined instruction events
+                                2 - system calls
+                                4 - invalid data aborts
+                                8 - SIGSEGV faults
+                               16 - SIGBUS faults
+                       Example: user_debug=31
+
        userpte=
                        [X86] Flags controlling user PTE allocations.