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-rw-r--r--include/linux/serial.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index 0916107c77f9..0b8b7d7c8f33 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -12,6 +12,8 @@
#include <asm/page.h>
#include <uapi/linux/serial.h>
+/* Helper for dealing with UART_LCR_WLEN* defines */
+#define UART_LCR_WLEN(x) ((x) - 5)
/*
* Counters of the input lines (CTS, DSR, RI, CD) interrupts