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-rw-r--r--firmware/kernel/include/queue.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/firmware/kernel/include/queue.h b/firmware/kernel/include/queue.h
index 6740b88760..a9c3b5a93a 100644
--- a/firmware/kernel/include/queue.h
+++ b/firmware/kernel/include/queue.h
@@ -38,7 +38,7 @@
/* make sure SYS_EVENT_CLS_BITS has enough range */
/* Bit 31->|S|c...c|i...i| */
-#define SYS_EVENT ((long)(int)(1 << 31))
+#define SYS_EVENT ((long)(int)(1u << 31))
#define SYS_EVENT_CLS_BITS (3)
#define SYS_EVENT_CLS_SHIFT (31-SYS_EVENT_CLS_BITS)
#define SYS_EVENT_CLS_MASK (((1l << SYS_EVENT_CLS_BITS)-1) << SYS_EVENT_SHIFT)