@@ -20,6 +20,13 @@
unlikely(__ret_warn_on); \
})
+#define WARN(condition, format...) ({ \
+ int __ret_warn_on = !!(condition); \
+ if (unlikely(__ret_warn_on)) \
+ printf(format); \
+ unlikely(__ret_warn_on); \
+})
+
#define WARN_ON_ONCE(condition) ({ \
static bool __warned; \
int __ret_warn_once = !!(condition); \
@@ -31,4 +38,15 @@
unlikely(__ret_warn_once); \
})
+#define WARN_ONCE(condition, format...) ({ \
+ static bool __warned; \
+ int __ret_warn_once = !!(condition); \
+ \
+ if (unlikely(__ret_warn_once && !__warned)) { \
+ __warned = true; \
+ WARN(1, format); \
+ } \
+ unlikely(__ret_warn_once); \
+})
+
#endif /* _LINUX_BUG_H */
Add WARN_ONCE definition to allow single time notification of warnings to the user. Taken from Linux kernel (4.17) with slight changes (Removed __section(.data.once)) Signed-off-by: Ramon Fried <ramon.fried@gmail.com> --- Facepalm, missed that it was actually a v3 and not a v2. v2: accidently commited the wrong file. noticed by Masahiro Yamada v3: removed change-id, added taken from description to commit message. include/linux/bug.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)