diff mbox series

[v4,07/39] dyndbg: repack _ddebug structure

Message ID 20240210235009.2405808-8-ukaszb@chromium.org
State New
Headers
Series dyndbg: add support for writing debug logs to trace |

Commit Message

Łukasz Bartosik Feb. 10, 2024, 11:49 p.m. UTC 
  From: Jim Cromie <jim.cromie@gmail.com>

Move the JUMP_LABEL to the top of the struct, since they're both
align(8) and this closes a pahole (unfortunately trading for padding,
but still).

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 include/linux/dynamic_debug.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 497130816e9c..b9237e4ecd1b 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -14,6 +14,12 @@ 
  * the special section is treated as an array of these.
  */
 struct _ddebug {
+#ifdef CONFIG_JUMP_LABEL
+	union {
+		struct static_key_true dd_key_true;
+		struct static_key_false dd_key_false;
+	} key;
+#endif
 	/*
 	 * These fields are used to drive the user interface
 	 * for selecting and displaying debug callsites.
@@ -53,12 +59,6 @@  struct _ddebug {
 #define _DPRINTK_FLAGS_DEFAULT 0
 #endif
 	unsigned int flags:8;
-#ifdef CONFIG_JUMP_LABEL
-	union {
-		struct static_key_true dd_key_true;
-		struct static_key_false dd_key_false;
-	} key;
-#endif
 } __attribute__((aligned(8)));
 
 enum class_map_type {