From: Xiang Gao <gaoxiang17@xiaomi.com>

checkpatch.pl reports two indentation errors in page_alloc.c where
spaces are used instead of tabs:

  ERROR: code indent should use tabs where possible
  #887: FILE: mm/page_alloc.c:887:
  +        VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,$

  ERROR: code indent should use tabs where possible
  #6626: FILE: mm/page_alloc.c:6626:
  +						         sysctl_min_unmapped_ratio) / 100;$

In __del_page_from_free_list(), the VM_WARN_ONCE at line 887 uses 8
spaces for indentation instead of a tab. The identical VM_WARN_ONCE
calls in __add_to_free_list() and move_to_free_list() both correctly
use a tab.

In setup_min_unmapped_ratio(), the continuation line at 6626 uses 6
tabs + 9 spaces for alignment. Replace the excess spaces with 6 tabs
+ 1 space to correctly align with the opening parenthesis on the
previous line.

Signed-off-by: Xiang Gao <gaoxiang17@xiaomi.com>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2d4b6f1a554e..752673a9b43c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -884,7 +884,7 @@ static inline void __del_page_from_free_list(struct page *page, struct zone *zon
 {
 	int nr_pages = 1 << order;
 
-        VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,
+	VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,
 		     "page type is %d, passed migratetype is %d (nr=%d)\n",
 		     get_pageblock_migratetype(page), migratetype, nr_pages);
 
@@ -6623,7 +6623,7 @@ static void setup_min_unmapped_ratio(void)
 
 	for_each_zone(zone)
 		zone->zone_pgdat->min_unmapped_pages += (zone_managed_pages(zone) *
-						         sysctl_min_unmapped_ratio) / 100;
+						 sysctl_min_unmapped_ratio) / 100;
 }
 
 
-- 
2.34.1

On 16/04/26 10:57 am, Xiang Gao wrote:
> From: Xiang Gao <gaoxiang17@xiaomi.com>
> 
> checkpatch.pl reports two indentation errors in page_alloc.c where
> spaces are used instead of tabs:
> 
>   ERROR: code indent should use tabs where possible
>   #887: FILE: mm/page_alloc.c:887:
>   +        VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,$
> 
>   ERROR: code indent should use tabs where possible
>   #6626: FILE: mm/page_alloc.c:6626:
>   +						         sysctl_min_unmapped_ratio) / 100;$
> 
> In __del_page_from_free_list(), the VM_WARN_ONCE at line 887 uses 8
> spaces for indentation instead of a tab. The identical VM_WARN_ONCE
> calls in __add_to_free_list() and move_to_free_list() both correctly
> use a tab.
> 
> In setup_min_unmapped_ratio(), the continuation line at 6626 uses 6
> tabs + 9 spaces for alignment. Replace the excess spaces with 6 tabs

6 tabs + 9 spaces -> 7 tabs + 1 space.


> + 1 space to correctly align with the opening parenthesis on the
> previous line.
> 
> Signed-off-by: Xiang Gao <gaoxiang17@xiaomi.com>
> ---
>  mm/page_alloc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 2d4b6f1a554e..752673a9b43c 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -884,7 +884,7 @@ static inline void __del_page_from_free_list(struct page *page, struct zone *zon
>  {
>  	int nr_pages = 1 << order;
>  
> -        VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,
> +	VM_WARN_ONCE(get_pageblock_migratetype(page) != migratetype,
>  		     "page type is %d, passed migratetype is %d (nr=%d)\n",
>  		     get_pageblock_migratetype(page), migratetype, nr_pages);
>  
> @@ -6623,7 +6623,7 @@ static void setup_min_unmapped_ratio(void)
>  
>  	for_each_zone(zone)
>  		zone->zone_pgdat->min_unmapped_pages += (zone_managed_pages(zone) *
> -						         sysctl_min_unmapped_ratio) / 100;
> +						 sysctl_min_unmapped_ratio) / 100;
>  }
>  
>