From: Luca Coelho <luciano.coelho@xxxxxxxxx>
The iwlwifi driver now needs this function. Backport it.
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
backport/backport-include/linux/atomic.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/backport/backport-include/linux/atomic.h b/backport/backport-include/linux/atomic.h
index b4dd2e1d34f0..9ceb586e864a 100644
--- a/backport/backport-include/linux/atomic.h
+++ b/backport/backport-include/linux/atomic.h
@@ -51,4 +51,13 @@
#endif /* atomic_try_cmpxchg_acquire */
+#if LINUX_VERSION_IS_LESS(4,19,0)
+#ifndef atomic_fetch_add_unless
+static inline int atomic_fetch_add_unless(atomic_t *v, int a, int u)
+{
+ return __atomic_add_unless(v, a, u);
+}
+#endif
+#endif
+
#endif /* __BP_ATOMIC_H */
--
2.20.1
--
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