[Qemu-devel] [PATCH] slirp: Mark debugging calls as unlikely

[Samuel Thibault]

to get them out of the hot path.

Signed-off-by: Samuel Thibault <samuel.thiba...@ens-lyon.org>
---
 slirp/debug.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/slirp/debug.h b/slirp/debug.h
index ff920f0b87..ad4e07aa01 100644
--- a/slirp/debug.h
+++ b/slirp/debug.h
@@ -17,7 +17,7 @@
 extern int slirp_debug;
 
 #define DEBUG_CALL(fmt, ...) do {               \
-    if (slirp_debug & DBG_CALL) {               \
+    if (unlikely(slirp_debug & DBG_CALL)) {     \
         fprintf(dfd, fmt, ##__VA_ARGS__);       \
         fprintf(dfd, "...\n");                  \
         fflush(dfd);                            \
@@ -25,7 +25,7 @@ extern int slirp_debug;
 } while (0)
 
 #define DEBUG_ARG(fmt, ...) do {                \
-    if (slirp_debug & DBG_CALL) {               \
+    if (unlikely(slirp_debug & DBG_CALL)) {     \
         fputc(' ', dfd);                        \
         fprintf(dfd, fmt, ##__VA_ARGS__);       \
         fputc('\n', dfd);                       \
@@ -36,14 +36,14 @@ extern int slirp_debug;
 #define DEBUG_ARGS(fmt, ...) DEBUG_ARG(fmt, ##__VA_ARGS__)
 
 #define DEBUG_MISC(fmt, ...) do {               \
-    if (slirp_debug & DBG_MISC) {               \
+    if (unlikely(slirp_debug & DBG_MISC)) {     \
         fprintf(dfd, fmt, ##__VA_ARGS__);       \
         fflush(dfd);                            \
     }                                           \
 } while (0)
 
 #define DEBUG_ERROR(fmt, ...) do {              \
-    if (slirp_debug & DBG_ERROR) {              \
+    if (unlikely(slirp_debug & DBG_ERROR)) {    \
         fprintf(dfd, fmt, ##__VA_ARGS__);       \
         fflush(dfd);                            \
     }                                           \
-- 
2.19.1