diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
index 7e0fe4d42c7b..af6479fae931 100644
--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
@@ -88,7 +88,6 @@ static void icedcc_putc(int ch)
 #endif
 
 #define putc(ch)	icedcc_putc(ch)
-#define flush()	do { } while (0)
 #endif
 
 static void putstr(const char *ptr)
diff --git a/arch/arm/mach-gemini/include/mach/uncompress.h b/arch/arm/mach-gemini/include/mach/uncompress.h
index 59c5df7e716c..5483f61a8061 100644
--- a/arch/arm/mach-gemini/include/mach/uncompress.h
+++ b/arch/arm/mach-gemini/include/mach/uncompress.h
@@ -30,7 +30,9 @@ static inline void putc(char c)
 	UART[UART_TX] = c;
 }
 
-#define flush() do { } while (0)
+static inline void flush(void)
+{
+}
 
 /*
  * nothing to do
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h
index 4d5d395ad63b..d49384cb1e97 100644
--- a/arch/arm/plat-mxc/include/mach/uncompress.h
+++ b/arch/arm/plat-mxc/include/mach/uncompress.h
@@ -60,7 +60,9 @@ static void putc(int ch)
 	UART(TXR) = ch;
 }
 
-#define flush() do { } while (0)
+static inline void flush(void)
+{
+}
 
 #define MX1_UART1_BASE_ADDR	0x00206000
 #define MX25_UART1_BASE_ADDR	0x43f90000