include/linux/memblock.h: Clean up code for several trivial details

Correct the function parameters alignment, since original code already
use both tabs and white spaces together for the incorrect parameters
alignment functions.

If one line can hold one statement within 80 columns, let it in one line
(original code did not consider about the tabs/spaces for 2nd line when
a statement is separated into 2 lines).

Try to let '' aligned within one macro, since all related lines are
short enough.

Remove useless statement "idx = 0;", and always assign rgn within the
'for' statement.

Link: http://lkml.kernel.org/r/1464904899-1714-1-git-send-email-chengang@emindsoft.com.cnSigned-off-by: NChen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/memblock.h

@@ -163,8 +163,7 @@ void __next_reserved_mem_region(u64 *idx, phys_addr_t *out_start,
  * is initialized.
  */
 #define for_each_reserved_mem_region(i, p_start, p_end)			\
-	for (i = 0UL,							\
-	     __next_reserved_mem_region(&i, p_start, p_end);		\
+	for (i = 0UL, __next_reserved_mem_region(&i, p_start, p_end);	\
 	     i != (u64)ULLONG_MAX;					\
 	     __next_reserved_mem_region(&i, p_start, p_end))
 
@@ -408,10 +407,9 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
 	     region++)
 
 #define for_each_memblock_type(memblock_type, rgn)			\
-	idx = 0;							\
-	rgn = &memblock_type->regions[idx];				\
-	for (idx = 0; idx < memblock_type->cnt;				\
-	     idx++,rgn = &memblock_type->regions[idx])
+	for (idx = 0, rgn = &memblock_type->regions[0];			\
+	     idx < memblock_type->cnt;					\
+	     idx++, rgn = &memblock_type->regions[idx])
 
 #ifdef CONFIG_MEMTEST
 extern void early_memtest(phys_addr_t start, phys_addr_t end);