[PATCH] mm: use pgprot_val to get value of pgprot

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pgprot.pgprot is a non-portable code, it should be replaced by
portable macro pgprot_val.

Signed-off-by: liusongtang <liusongtang@xxxxxxxxxx>
---
 mm/memory_hotplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 416b38c..bf7d181 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -303,7 +303,7 @@ int __ref __add_pages(int nid, unsigned long pfn, unsigned long nr_pages,
 	int err;
 	struct vmem_altmap *altmap = params->altmap;
 
-	if (WARN_ON_ONCE(!params->pgprot.pgprot))
+	if (WARN_ON_ONCE(!pgprot_val(params->pgprot)))
 		return -EINVAL;
 
 	VM_BUG_ON(!mhp_range_allowed(PFN_PHYS(pfn), nr_pages * PAGE_SIZE, false));
-- 
2.12.3





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