[PATCH v4 31/41] dyndbg: add _DPRINTK_FLAGS_ENABLED

[Jim Cromie]

Distinguish the condition: _DPRINTK_FLAGS_ENABLED from the bit:
_DPRINTK_FLAGS_PRINT, and re-define former in terms of latter, in
preparation to add a 2nd bit: _DPRINTK_FLAGS_TRACE

Update JUMP_LABEL code block to check _DPRINTK_FLAGS_ENABLED symbol.
Also add a 'K' to get new symbol _DPRINTK_FLAGS_PRINTK, in order to
break any stale uses.

CC: vincent.whitchu...@axis.com
Signed-off-by: Jim Cromie <jim.cro...@gmail.com>
---
 include/linux/dynamic_debug.h | 10 ++++++----
 lib/dynamic_debug.c           |  8 ++++----
 2 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index b50bdd5c8184..38cfdd5c0bdc 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -32,7 +32,7 @@ struct _ddebug {
         * writes commands to <debugfs>/dynamic_debug/control
         */
 #define _DPRINTK_FLAGS_NONE    0
-#define _DPRINTK_FLAGS_PRINT   (1<<0) /* printk() a message using the format */
+#define _DPRINTK_FLAGS_PRINTK  (1 << 0) /* printk() a message using the format 
*/
 #define _DPRINTK_FLAGS_INCL_MODNAME    (1<<1)
 #define _DPRINTK_FLAGS_INCL_FUNCNAME   (1<<2)
 #define _DPRINTK_FLAGS_INCL_LINENO     (1<<3)
@@ -42,8 +42,10 @@ struct _ddebug {
        (_DPRINTK_FLAGS_INCL_MODNAME | _DPRINTK_FLAGS_INCL_FUNCNAME |\
         _DPRINTK_FLAGS_INCL_LINENO  | _DPRINTK_FLAGS_INCL_TID)
 
+#define _DPRINTK_FLAGS_ENABLED         _DPRINTK_FLAGS_PRINTK
+
 #if defined DEBUG
-#define _DPRINTK_FLAGS_DEFAULT _DPRINTK_FLAGS_PRINT
+#define _DPRINTK_FLAGS_DEFAULT _DPRINTK_FLAGS_PRINTK
 #else
 #define _DPRINTK_FLAGS_DEFAULT 0
 #endif
@@ -191,10 +193,10 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
 
 #ifdef DEBUG
 #define DYNAMIC_DEBUG_BRANCH(descriptor) \
-       likely(descriptor.flags & _DPRINTK_FLAGS_PRINT)
+       likely(descriptor.flags & _DPRINTK_FLAGS_ENABLED)
 #else
 #define DYNAMIC_DEBUG_BRANCH(descriptor) \
-       unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT)
+       unlikely(descriptor.flags & _DPRINTK_FLAGS_ENABLED)
 #endif
 
 #endif /* CONFIG_JUMP_LABEL */
diff --git a/lib/dynamic_debug.c b/lib/dynamic_debug.c
index dd27dc514aa3..2a46c642373a 100644
--- a/lib/dynamic_debug.c
+++ b/lib/dynamic_debug.c
@@ -89,7 +89,7 @@ static inline const char *trim_prefix(const char *path)
 }
 
 static struct { unsigned flag:8; char opt_char; } opt_array[] = {
-       { _DPRINTK_FLAGS_PRINT, 'p' },
+       { _DPRINTK_FLAGS_PRINTK, 'p' },
        { _DPRINTK_FLAGS_INCL_MODNAME, 'm' },
        { _DPRINTK_FLAGS_INCL_FUNCNAME, 'f' },
        { _DPRINTK_FLAGS_INCL_LINENO, 'l' },
@@ -246,10 +246,10 @@ static int ddebug_change(const struct ddebug_query *query,
                        if (newflags == dp->flags)
                                continue;
 #ifdef CONFIG_JUMP_LABEL
-                       if (dp->flags & _DPRINTK_FLAGS_PRINT) {
-                               if (!(newflags & _DPRINTK_FLAGS_PRINT))
+                       if (dp->flags & _DPRINTK_FLAGS_ENABLED) {
+                               if (!(newflags & _DPRINTK_FLAGS_ENABLED))
                                        
static_branch_disable(&dp->key.dd_key_true);
-                       } else if (newflags & _DPRINTK_FLAGS_PRINT) {
+                       } else if (newflags & _DPRINTK_FLAGS_ENABLED) {
                                static_branch_enable(&dp->key.dd_key_true);
                        }
 #endif
-- 
2.36.1