dynamic_debug: deprecate ddebug_query, suggest dyndbg instead

With ddebug_dyndbg_boot_params_cb() handling bare dyndbg params, we
dont need ddebug_query param anymore.  Add a warning when processing
ddebug_query= param that it is deprecated, and to change it to dyndbg=

Add a deprecation notice for v3.8 to feature-removal-schedule.txt, and
add a suggested deprecation period of 3 releases to the header.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Acked-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 8fba40179305..09f2cda88058 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -993,6 +993,8 @@ static int __init dynamic_debug_init(void)
 
         /* ddebug_query boot param got passed -> set it up */
         if (ddebug_setup_string[0] != '\0') {
+                pr_warn("ddebug_query param name is deprecated,"
+                        " change it to dyndbg\n");
                 ret = ddebug_exec_queries(ddebug_setup_string);
                 if (ret < 0)
                         pr_warn("Invalid ddebug boot param %s",