* [PATCH] mm/mm_init.c: Clean code. Use BUILD_BUG_ON when comparing compile time constant
@ 2020-02-28 22:46 mateusznosek0
2020-03-02 13:51 ` Wei Yang
0 siblings, 1 reply; 2+ messages in thread
From: mateusznosek0 @ 2020-02-28 22:46 UTC (permalink / raw)
To: linux-mm, linux-kernel; +Cc: Mateusz Nosek, akpm
From: Mateusz Nosek <mateusznosek0@gmail.com>
MAX_ZONELISTS is compile time constant,
so it should be compared using BUILD_BUG_ON not BUG_ON.
Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com>
---
mm/mm_init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 5c918388de99..7da6991d9435 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -37,7 +37,7 @@ void __init mminit_verify_zonelist(void)
struct zonelist *zonelist;
int i, listid, zoneid;
- BUG_ON(MAX_ZONELISTS > 2);
+ BUILD_BUG_ON(MAX_ZONELISTS > 2);
for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
/* Identify the zone and nodelist */
--
2.17.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] mm/mm_init.c: Clean code. Use BUILD_BUG_ON when comparing compile time constant
2020-02-28 22:46 [PATCH] mm/mm_init.c: Clean code. Use BUILD_BUG_ON when comparing compile time constant mateusznosek0
@ 2020-03-02 13:51 ` Wei Yang
0 siblings, 0 replies; 2+ messages in thread
From: Wei Yang @ 2020-03-02 13:51 UTC (permalink / raw)
To: mateusznosek0; +Cc: linux-mm, linux-kernel, akpm
On Fri, Feb 28, 2020 at 11:46:17PM +0100, mateusznosek0@gmail.com wrote:
>From: Mateusz Nosek <mateusznosek0@gmail.com>
>
>MAX_ZONELISTS is compile time constant,
>so it should be compared using BUILD_BUG_ON not BUG_ON.
>
>Signed-off-by: Mateusz Nosek <mateusznosek0@gmail.com>
Sounds you are right.
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
>---
> mm/mm_init.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
>diff --git a/mm/mm_init.c b/mm/mm_init.c
>index 5c918388de99..7da6991d9435 100644
>--- a/mm/mm_init.c
>+++ b/mm/mm_init.c
>@@ -37,7 +37,7 @@ void __init mminit_verify_zonelist(void)
> struct zonelist *zonelist;
> int i, listid, zoneid;
>
>- BUG_ON(MAX_ZONELISTS > 2);
>+ BUILD_BUG_ON(MAX_ZONELISTS > 2);
> for (i = 0; i < MAX_ZONELISTS * MAX_NR_ZONES; i++) {
>
> /* Identify the zone and nodelist */
>--
>2.17.1
--
Wei Yang
Help you, Help me
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-02-28 22:46 [PATCH] mm/mm_init.c: Clean code. Use BUILD_BUG_ON when comparing compile time constant mateusznosek0
2020-03-02 13:51 ` Wei Yang
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