cpumask: nicer for_each_cpumask_and() signature

Mask arguments can be swapped without changing anything.  Make arguments
names reflect that:

	#define for_each_cpu_and(cpu, mask1, mask2)

Link: http://lkml.kernel.org/r/20190724183350.GA15041@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/cpumask.h

@@ -200,8 +200,8 @@ static inline unsigned int cpumask_local_spread(unsigned int i, int node)
 	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask)
 #define for_each_cpu_wrap(cpu, mask, start)	\
 	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)(start))
-#define for_each_cpu_and(cpu, mask, and)	\
-	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask, (void)and)
+#define for_each_cpu_and(cpu, mask1, mask2)	\
+	for ((cpu) = 0; (cpu) < 1; (cpu)++, (void)mask1, (void)mask2)
 #else
 /**
  * cpumask_first - get the first cpu in a cpumask
@@ -290,20 +290,20 @@ extern int cpumask_next_wrap(int n, const struct cpumask *mask, int start, bool
 /**
  * for_each_cpu_and - iterate over every cpu in both masks
  * @cpu: the (optionally unsigned) integer iterator
- * @mask: the first cpumask pointer
- * @and: the second cpumask pointer
+ * @mask1: the first cpumask pointer
+ * @mask2: the second cpumask pointer
  *
  * This saves a temporary CPU mask in many places.  It is equivalent to:
  *	struct cpumask tmp;
- *	cpumask_and(&tmp, &mask, &and);
+ *	cpumask_and(&tmp, &mask1, &mask2);
  *	for_each_cpu(cpu, &tmp)
  *		...
  *
  * After the loop, cpu is >= nr_cpu_ids.
  */
-#define for_each_cpu_and(cpu, mask, and)				\
+#define for_each_cpu_and(cpu, mask1, mask2)				\
 	for ((cpu) = -1;						\
-		(cpu) = cpumask_next_and((cpu), (mask), (and)),		\
+		(cpu) = cpumask_next_and((cpu), (mask1), (mask2)),	\
 		(cpu) < nr_cpu_ids;)
 #endif /* SMP */