diff mbox series

[v2,3/4] tracing: Use ? : shortcut in trace macros

Message ID 20240222211442.949327725@goodmis.org (mailing list archive)
State Accepted
Commit 916849860fa9c7d3caeb144cb5dec8831cf23bfc
Headers show
Series tracing: Optimize __string()/__assign_str() processing | expand

Commit Message

Steven Rostedt Feb. 22, 2024, 9:14 p.m. UTC 
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

Instead of having:

  #define __assign_str(dst, src)					\
	memcpy(__get_str(dst), __data_offsets.dst##_ptr_ ?		\
		__data_offsets.dst##_ptr_ : "(null)",			\
		__get_dynamic_array_len(dst))

Use the ? : shortcut and compact it down to:

  #define __assign_str(dst, src)					\
	memcpy(__get_str(dst), __data_offsets.dst##_ptr_ ? : "(null)",	\
	       __get_dynamic_array_len(dst))

Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 include/trace/stages/stage5_get_offsets.h    |  4 ++--
 include/trace/stages/stage6_event_callback.h | 14 ++++++--------
 2 files changed, 8 insertions(+), 10 deletions(-)
diff mbox series

Patch

diff --git a/include/trace/stages/stage5_get_offsets.h b/include/trace/stages/stage5_get_offsets.h
index 45f8151cf622..20b801ed3fd4 100644
--- a/include/trace/stages/stage5_get_offsets.h
+++ b/include/trace/stages/stage5_get_offsets.h
@@ -47,7 +47,7 @@ 
 
 #undef __string
 #define __string(item, src) __dynamic_array(char, item,			\
-		    strlen((src) ? (const char *)(src) : "(null)") + 1)	\
+		    strlen((const char *)(src) ? : "(null)") + 1)	\
 	__data_offsets->item##_ptr_ = src;
 
 #undef __string_len
@@ -70,7 +70,7 @@ 
 
 #undef __rel_string
 #define __rel_string(item, src) __rel_dynamic_array(char, item,		\
-		    strlen((src) ? (const char *)(src) : "(null)") + 1)	\
+		    strlen((const char *)(src) ? : "(null)") + 1)	\
 	__data_offsets->item##_ptr_ = src;
 
 #undef __rel_string_len
diff --git a/include/trace/stages/stage6_event_callback.h b/include/trace/stages/stage6_event_callback.h
index c0e5d097324e..38732855eadb 100644
--- a/include/trace/stages/stage6_event_callback.h
+++ b/include/trace/stages/stage6_event_callback.h
@@ -32,15 +32,14 @@ 
 
 #undef __assign_str
 #define __assign_str(dst, src)						\
-	memcpy(__get_str(dst), __data_offsets.dst##_ptr_ ?		\
-	       __data_offsets.dst##_ptr_ : "(null)",			\
+	memcpy(__get_str(dst), __data_offsets.dst##_ptr_ ? : "(null)",	\
 	       __get_dynamic_array_len(dst))
 
 #undef __assign_str_len
 #define __assign_str_len(dst, src, len)					\
 	do {								\
-		memcpy(__get_str(dst), __data_offsets.dst##_ptr_ ?	\
-		       __data_offsets.dst##_ptr_ : "(null)", len);	\
+		memcpy(__get_str(dst),					\
+		       __data_offsets.dst##_ptr_ ? : "(null)", len);	\
 		__get_str(dst)[len] = '\0';				\
 	} while(0)
 
@@ -95,15 +94,14 @@ 
 
 #undef __assign_rel_str
 #define __assign_rel_str(dst, src)					\
-	memcpy(__get_rel_str(dst), __data_offsets.dst##_ptr_ ?		\
-	       __data_offsets.dst##_ptr_ : "(null)",			\
+	memcpy(__get_rel_str(dst), __data_offsets.dst##_ptr_ ? : "(null)", \
 	       __get_rel_dynamic_array_len(dst))
 
 #undef __assign_rel_str_len
 #define __assign_rel_str_len(dst, src, len)				\
 	do {								\
-		memcpy(__get_rel_str(dst), __data_offsets.dst##_ptr_ ?	\
-		       __data_offsets.dst##_ptr_ : "(null)", len);	\
+		memcpy(__get_rel_str(dst),				\
+		       __data_offsets.dst##_ptr_ ? : "(null)", len);	\
 		__get_rel_str(dst)[len] = '\0';				\
 	} while (0)