ftrace: Use BIT() macro

It's cleaner to use the BIT() macro instead of raw shift operation.

Link: http://lkml.kernel.org/r/20191121133815.15040-1-info@metux.netSigned-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
[ Added BIT() for bits 16 and 17 ]
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

include/linux/ftrace.h

@@ -149,24 +149,24 @@ ftrace_func_t ftrace_ops_get_func(struct ftrace_ops *ops);
  *            (internal ftrace only, should not be used by others)
  */
 enum {
-	FTRACE_OPS_FL_ENABLED			= 1 << 0,
-	FTRACE_OPS_FL_DYNAMIC			= 1 << 1,
-	FTRACE_OPS_FL_SAVE_REGS			= 1 << 2,
-	FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED	= 1 << 3,
-	FTRACE_OPS_FL_RECURSION_SAFE		= 1 << 4,
-	FTRACE_OPS_FL_STUB			= 1 << 5,
-	FTRACE_OPS_FL_INITIALIZED		= 1 << 6,
-	FTRACE_OPS_FL_DELETED			= 1 << 7,
-	FTRACE_OPS_FL_ADDING			= 1 << 8,
-	FTRACE_OPS_FL_REMOVING			= 1 << 9,
-	FTRACE_OPS_FL_MODIFYING			= 1 << 10,
-	FTRACE_OPS_FL_ALLOC_TRAMP		= 1 << 11,
-	FTRACE_OPS_FL_IPMODIFY			= 1 << 12,
-	FTRACE_OPS_FL_PID			= 1 << 13,
-	FTRACE_OPS_FL_RCU			= 1 << 14,
-	FTRACE_OPS_FL_TRACE_ARRAY		= 1 << 15,
-	FTRACE_OPS_FL_PERMANENT                 = 1 << 16,
-	FTRACE_OPS_FL_DIRECT			= 1 << 17,
+	FTRACE_OPS_FL_ENABLED			= BIT(0),
+	FTRACE_OPS_FL_DYNAMIC			= BIT(1),
+	FTRACE_OPS_FL_SAVE_REGS			= BIT(2),
+	FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED	= BIT(3),
+	FTRACE_OPS_FL_RECURSION_SAFE		= BIT(4),
+	FTRACE_OPS_FL_STUB			= BIT(5),
+	FTRACE_OPS_FL_INITIALIZED		= BIT(6),
+	FTRACE_OPS_FL_DELETED			= BIT(7),
+	FTRACE_OPS_FL_ADDING			= BIT(8),
+	FTRACE_OPS_FL_REMOVING			= BIT(9),
+	FTRACE_OPS_FL_MODIFYING			= BIT(10),
+	FTRACE_OPS_FL_ALLOC_TRAMP		= BIT(11),
+	FTRACE_OPS_FL_IPMODIFY			= BIT(12),
+	FTRACE_OPS_FL_PID			= BIT(13),
+	FTRACE_OPS_FL_RCU			= BIT(14),
+	FTRACE_OPS_FL_TRACE_ARRAY		= BIT(15),
+	FTRACE_OPS_FL_PERMANENT                 = BIT(16),
+	FTRACE_OPS_FL_DIRECT			= BIT(17),
 };
 
 #ifdef CONFIG_DYNAMIC_FTRACE