From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f71.google.com (mail-wm0-f71.google.com [74.125.82.71]) by kanga.kvack.org (Postfix) with ESMTP id 2A13A6B0033 for ; Wed, 13 Sep 2017 09:30:42 -0400 (EDT) Received: by mail-wm0-f71.google.com with SMTP id m127so791601wmm.3 for ; Wed, 13 Sep 2017 06:30:42 -0700 (PDT) Received: from mail-sor-f41.google.com (mail-sor-f41.google.com. [209.85.220.41]) by mx.google.com with SMTPS id 186sor419484wmp.64.2017.09.13.06.30.40 for (Google Transport Security); Wed, 13 Sep 2017 06:30:41 -0700 (PDT) From: Gioh Kim Subject: [PATCH v2] mm/memblock.c: make the index explicit argument of for_each_memblock_type Date: Wed, 13 Sep 2017 15:30:29 +0200 Message-Id: <20170913133029.28911-1-gi-oh.kim@profitbricks.com> Sender: owner-linux-mm@kvack.org List-ID: To: mhocko@suse.com Cc: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Gioh Kim 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. Acked-by: Michal Hocko Signed-off-by: Gioh Kim --- include/linux/memblock.h | 8 ++++---- mm/memblock.c | 8 ++++---- 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 @@ int __init_memblock memblock_add_range(struct memblock_type *type, 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) -- 2.11.0 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org