From: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
Date: Sun, 18 Mar 2012 07:59:46 +0000 (+0100)
Subject: Add WARN_ONCE() helper macro.
X-Git-Tag: 1.0_branch~105
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7e717c78b060936d5fec714b26aa00b682d216b8;p=profile%2Fivi%2Fvaapi-intel-driver.git

Add WARN_ONCE() helper macro.

Signed-off-by: Gwenole Beauchesne <gwenole.beauchesne@intel.com>
(cherry picked from commit 2447c981a84cd9dc1eddf8e4258cef555503024f)
---

diff --git a/src/intel_driver.h b/src/intel_driver.h
index c544250..c79f983 100644
--- a/src/intel_driver.h
+++ b/src/intel_driver.h
@@ -94,6 +94,14 @@ struct intel_batchbuffer;
         RESTORE_BLOCKED_SIGSET();              \
     } while (0)
 
+#define WARN_ONCE(...) do {                     \
+        static int g_once = 1;                  \
+        if (g_once) {                           \
+            g_once = 0;                         \
+            printf("WARNING: " __VA_ARGS__);    \
+        }                                       \
+    } while (0)
+
 struct intel_driver_data 
 {
     int fd;