In mm/Makefile has:
obj-$(CONFIG_KASAN)     += kasan/

So that we don't need 'obj-$(CONFIG_KASAN) :=' in mm/kasan/Makefile,
delete it from mm/kasan/Makefile.

Signed-off-by: tangmeng <tangmeng@uniontech.com>
---
 mm/kasan/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index adcd9acaef61..1f84df9c302e 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -35,7 +35,7 @@ CFLAGS_shadow.o := $(CC_FLAGS_KASAN_RUNTIME)
 CFLAGS_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
 CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
 
-obj-$(CONFIG_KASAN) := common.o report.o
+obj-y := common.o report.o
 obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
 obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o tags.o report_tags.o
 obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o tags.o report_tags.o
-- 
2.20.1

On Mon, 21 Feb 2022 at 07:54, tangmeng <tangmeng@uniontech.com> wrote:
>
> In mm/Makefile has:
> obj-$(CONFIG_KASAN)     += kasan/
>
> So that we don't need 'obj-$(CONFIG_KASAN) :=' in mm/kasan/Makefile,
> delete it from mm/kasan/Makefile.
>
> Signed-off-by: tangmeng <tangmeng@uniontech.com>

Looks reasonable, thanks.

Reviewed-by: Marco Elver <elver@google.com>

> ---
>  mm/kasan/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
> index adcd9acaef61..1f84df9c302e 100644
> --- a/mm/kasan/Makefile
> +++ b/mm/kasan/Makefile
> @@ -35,7 +35,7 @@ CFLAGS_shadow.o := $(CC_FLAGS_KASAN_RUNTIME)
>  CFLAGS_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
>  CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
>
> -obj-$(CONFIG_KASAN) := common.o report.o
> +obj-y := common.o report.o
>  obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
>  obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o tags.o report_tags.o
>  obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o tags.o report_tags.o
> --
> 2.20.1
>
>
>
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