[PATCH 1/8] mm: remove a pointless CONFIG_ZONE_DEVICE check in memremap_pages

From: Christoph Hellwig
Date: Mon Feb 07 2022 - 01:41:02 EST


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);
}
--
2.30.2