Fix "warning: left-hand operand of comma expression has no effect"

Signed-off-by: Eamon Walsh <efw@eamonwalsh.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>

fb/fb.h

@@ -487,22 +487,34 @@ extern _X_EXPORT void fbSetBits (FbStip *bits, int stride, FbStip data);
  * The term "lane" comes from the hardware term "byte-lane" which
  */
 
-#define FbLaneCase1(n,a,o)  ((n) == 0x01 ? (void) \
-			     WRITE((CARD8 *) ((a)+FbPatternOffset(o,CARD8)), \
-			      fgxor) : (void) 0)
-#define FbLaneCase2(n,a,o)  ((n) == 0x03 ? (void) \
-			     WRITE((CARD16 *) ((a)+FbPatternOffset(o,CARD16)), \
-			      fgxor) : \
-			     ((void)FbLaneCase1((n)&1,a,o), \
-				    FbLaneCase1((n)>>1,a,(o)+1)))
-#define FbLaneCase4(n,a,o)  ((n) == 0x0f ? (void) \
-			     WRITE((CARD32 *) ((a)+FbPatternOffset(o,CARD32)), \
-			      fgxor) : \
-			     ((void)FbLaneCase2((n)&3,a,o), \
-				    FbLaneCase2((n)>>2,a,(o)+2)))
-#define FbLaneCase8(n,a,o)  ((n) == 0x0ff ? (void) (*(FbBits *) ((a)+(o)) = fgxor) : \
-			     ((void)FbLaneCase4((n)&15,a,o), \
-				    FbLaneCase4((n)>>4,a,(o)+4)))
+#define FbLaneCase1(n,a,o)						\
+    if ((n) == 0x01) {							\
+	WRITE((CARD8 *) ((a)+FbPatternOffset(o,CARD8)), fgxor);		\
+    }
+
+#define FbLaneCase2(n,a,o)						\
+    if ((n) == 0x03) {							\
+	WRITE((CARD16 *) ((a)+FbPatternOffset(o,CARD16)), fgxor);	\
+    } else {								\
+	FbLaneCase1((n)&1,a,o)						\
+	FbLaneCase1((n)>>1,a,(o)+1)					\
+    }
+
+#define FbLaneCase4(n,a,o)						\
+    if ((n) == 0x0f) {							\
+	WRITE((CARD32 *) ((a)+FbPatternOffset(o,CARD32)), fgxor);	\
+    } else {								\
+	FbLaneCase2((n)&3,a,o)						\
+	FbLaneCase2((n)>>2,a,(o)+2)					\
+    }
+
+#define FbLaneCase8(n,a,o)						\
+    if ((n) == 0x0ff) {							\
+	*(FbBits *) ((a)+(o)) = fgxor;					\
+    } else {								\
+	FbLaneCase4((n)&15,a,o)						\
+	FbLaneCase4((n)>>4,a,(o)+4)					\
+    }
 
 #if FB_SHIFT == 6
 #define FbLaneCase(n,a)   FbLaneCase8(n,(CARD8 *) (a),0)

fb/fbbltone.c

@@ -59,7 +59,7 @@
     
 #ifndef FBNOPIXADDR
     
-#define LaneCases1(n,a)	    case n: (void)FbLaneCase(n,a); break
+#define LaneCases1(n,a)	    case n: FbLaneCase(n,a); break
 #define LaneCases2(n,a)	    LaneCases1(n,a); LaneCases1(n+1,a)
 #define LaneCases4(n,a)	    LaneCases2(n,a); LaneCases2(n+2,a)
 #define LaneCases8(n,a)	    LaneCases4(n,a); LaneCases4(n+4,a)

fb/fbstipple.c

@@ -33,7 +33,7 @@
  * transparent stipple
  */
 #define LaneCases1(c,a)	    case c: \
-				while (n--) { (void)FbLaneCase(c,a); a++; } \
+				while (n--) { FbLaneCase(c,a); a++; } \
 				break
 #define LaneCases2(c,a)	    LaneCases1(c,a); LaneCases1(c+1,a)
 #define LaneCases4(c,a)	    LaneCases2(c,a); LaneCases2(c+2,a)