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>

diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index 709e08e9a222fd9f89a6eb91edf9f5b3326df536..e458d2b2ae952676635b478c8d09b75729294ff3 100644 (file)
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -2,7 +2,14 @@ The following is a list of files and features that are going to be
 removed in the kernel source tree.  Every entry should contain what
 exactly is going away, why it is happening, and who is going to be doing
 the work.  When the feature is removed from the kernel, it should also
-be removed from this file.
+be removed from this file.  The suggested deprecation period is 3 releases.
+
+---------------------------
+
+What:  ddebug_query="query" boot cmdline param
+When:  v3.8
+Why:   obsoleted by dyndbg="query" and module.dyndbg="query"
+Who:   Jim Cromie <jim.cromie@gmail.com>, Jason Baron <jbaron@redhat.com>
 
 ---------------------------
 

diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index 8fba401793056fc77db087da2384f502ac9f42cc..09f2cda88058a1de6d877c575ad8988f5000dda2 100644 (file)
--- 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",