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authorGioh Kim <gi-oh.kim@profitbricks.com>2017-11-15 17:33:42 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 18:21:02 -0800
commit66e8b438bd5c75498cfe915c4219049eaebcb869 (patch)
treeb02701c72a671e8f4487c28534695be1530a0284
parentecde0f3e7f9edf8629f56b2354385dc8d0a6a24d (diff)
mm/memblock.c: make the index explicit argument of for_each_memblock_type
for_each_memblock_type macro function relies on idx variable defined in the caller context. Silent macro arguments are almost always wrong thing to do. They make code harder to read and easier to get wrong. Let's use an explicit iterator parameter for for_each_memblock_type and make the code more obious. This patch is a mere cleanup and it shouldn't introduce any functional change. Link: http://lkml.kernel.org/r/20170913133029.28911-1-gi-oh.kim@profitbricks.com Signed-off-by: Gioh Kim <gi-oh.kim@profitbricks.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/memblock.h8
-rw-r--r--mm/memblock.c8
2 files changed, 8 insertions, 8 deletions
diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index bae11c7e7bf3..ce0e5634c2f9 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -389,10 +389,10 @@ static inline unsigned long memblock_region_reserved_end_pfn(const struct memblo
region < (memblock.memblock_type.regions + memblock.memblock_type.cnt); \
region++)
-#define for_each_memblock_type(memblock_type, rgn) \
- for (idx = 0, rgn = &memblock_type->regions[0]; \
- idx < memblock_type->cnt; \
- idx++, rgn = &memblock_type->regions[idx])
+#define for_each_memblock_type(i, memblock_type, rgn) \
+ for (i = 0, rgn = &memblock_type->regions[0]; \
+ i < memblock_type->cnt; \
+ i++, rgn = &memblock_type->regions[i])
#ifdef CONFIG_MEMTEST
extern void early_memtest(phys_addr_t start, phys_addr_t end);
diff --git a/mm/memblock.c b/mm/memblock.c
index 91205780e6b1..18dbb69086bc 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -533,7 +533,7 @@ repeat:
base = obase;
nr_new = 0;
- for_each_memblock_type(type, rgn) {
+ for_each_memblock_type(idx, type, rgn) {
phys_addr_t rbase = rgn->base;
phys_addr_t rend = rbase + rgn->size;
@@ -637,7 +637,7 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type,
if (memblock_double_array(type, base, size) < 0)
return -ENOMEM;
- for_each_memblock_type(type, rgn) {
+ for_each_memblock_type(idx, type, rgn) {
phys_addr_t rbase = rgn->base;
phys_addr_t rend = rbase + rgn->size;
@@ -1715,7 +1715,7 @@ static void __init_memblock memblock_dump(struct memblock_type *type)
pr_info(" %s.cnt = 0x%lx\n", type->name, type->cnt);
- for_each_memblock_type(type, rgn) {
+ for_each_memblock_type(idx, type, rgn) {
char nid_buf[32] = "";
base = rgn->base;
@@ -1739,7 +1739,7 @@ memblock_reserved_memory_within(phys_addr_t start_addr, phys_addr_t end_addr)
unsigned long size = 0;
int idx;
- for_each_memblock_type((&memblock.reserved), rgn) {
+ for_each_memblock_type(idx, (&memblock.reserved), rgn) {
phys_addr_t start, end;
if (rgn->base + rgn->size < start_addr)