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-rw-r--r--runtime/transport/control.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/runtime/transport/control.c b/runtime/transport/control.c
index 7d78cca4..93db97e1 100644
--- a/runtime/transport/control.c
+++ b/runtime/transport/control.c
@@ -14,7 +14,7 @@ static int _stp_current_buffers = STP_DEFAULT_BUFFERS;
static _stp_mempool_t *_stp_pool_q;
static struct list_head _stp_ctl_ready_q;
-DEFINE_SPINLOCK(_stp_ctl_ready_lock);
+static DEFINE_SPINLOCK(_stp_ctl_ready_lock);
static ssize_t _stp_ctl_write_cmd(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
{