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-rw-r--r--io_uring/eventfd.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/io_uring/eventfd.h b/io_uring/eventfd.h
index e2f1985c2cf9..400eda4a4165 100644
--- a/io_uring/eventfd.h
+++ b/io_uring/eventfd.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
struct io_ring_ctx;
int io_eventfd_register(struct io_ring_ctx *ctx, void __user *arg,