On 2/6/22 10:32 PM, Christoph Hellwig wrote:
> memremap.c is only built when CONFIG_ZONE_DEVICE is set, so remove
> the superflous extra check.
>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> ---
> mm/memremap.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/mm/memremap.c b/mm/memremap.c
> index 6aa5f0c2d11fda..5f04a0709e436e 100644
> --- a/mm/memremap.c
> +++ b/mm/memremap.c
> @@ -328,8 +328,7 @@ void *memremap_pages(struct dev_pagemap *pgmap, int nid)
> }
> break;
> case MEMORY_DEVICE_FS_DAX:
> - if (!IS_ENABLED(CONFIG_ZONE_DEVICE) ||
> - IS_ENABLED(CONFIG_FS_DAX_LIMITED)) {
> + if (IS_ENABLED(CONFIG_FS_DAX_LIMITED)) {
> WARN(1, "File system DAX not supported\n");
> return ERR_PTR(-EINVAL);
> }
>
Indeed it does have it in the makefile:-
root@dev mm (for-next) # grep memremap.o Makefile
obj-$(CONFIG_ZONE_DEVICE) += memremap.o
Looks good.
Reviewed-by: Chaitanya Kulkarni <kch@xxxxxxxxxx>
