linux-kernel - [PATCH v2] mm/memory_hotplug: use pgprot

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Date:   Tue, 26 Apr 2022 15:13:02 +0800
From:   liusongtang <liusongtang@...wei.com>
To:     <akpm@...ux-foundation.org>, <anshuman.khandual@....com>
CC:     <liusongtang@...wei.com>, <linux-mm@...ck.org>,
        <linux-kernel@...r.kernel.org>, <nixiaoming@...wei.com>,
        <young.liuyang@...wei.com>, <trivial@...nel.org>,
        <wangkefeng@...wei.com>
Subject: [PATCH v2] mm/memory_hotplug: use pgprot_val to get value of pgprot

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

Signed-off-by: liusongtang <liusongtang@...wei.com>

---
v2: add 'memory_hotplug' in the subject line
v1: https://lore.kernel.org/all/a5b58a66-bdc3-94df-6af5-c647da888c17@huawei.com/
---
 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