linux-mainstone: fix building with current gcc

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/recipes/linux/linux-mainstone/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch b/recipes/linux/linux-mainstone/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch
new file mode 100644
index 0000000000..9d7020d9f1
--- /dev/null
+++ b/recipes/linux/linux-mainstone/0001-time-prevent-the-loop-in-timespec_add_ns-from-bei.patch
@@ -0,0 +1,15 @@
+Index: linux-2.6.24/include/linux/time.h
+===================================================================
+--- a/include/linux/time.h
++++ b/include/linux/time.h
+@@ -172,6 +172,10 @@ static inline void timespec_add_ns(struct timespec *a, u64 ns)
+ {
+	ns += a->tv_nsec;
+	while(unlikely(ns >= NSEC_PER_SEC)) {
++		/* The following asm() prevents the compiler from
++		 * optimising this loop into a modulo operation.  */
++		asm("" : "+r"(ns));
++
+		ns -= NSEC_PER_SEC;
+		a->tv_sec++;
+	}