linux-kernel - [PATCH] dax/kmem: Pass valid argument to memory_group_register

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Message-Id: <20230620140332.30578-1-tsahu@linux.ibm.com>
Date:   Tue, 20 Jun 2023 19:33:32 +0530
From:   Tarun Sahu <tsahu@...ux.ibm.com>
To:     nvdimm@...ts.linux.dev, linux-cxl@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, dave.jiang@...el.com,
        dan.j.williams@...el.com, vishal.l.verma@...el.com,
        aneesh.kumar@...ux.ibm.com, jaypatel@...ux.ibm.com,
        tsahu@...ux.ibm.com
Subject: [PATCH] dax/kmem: Pass valid argument to memory_group_register_static

memory_group_register_static takes maximum number of pages as the argument
while dev_dax_kmem_probe passes total_len (in bytes) as the argument.

Signed-off-by: Tarun Sahu <tsahu@...ux.ibm.com>
---
 drivers/dax/kmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dax/kmem.c b/drivers/dax/kmem.c
index 7b36db6f1cbd..898ca9505754 100644
--- a/drivers/dax/kmem.c
+++ b/drivers/dax/kmem.c
@@ -99,7 +99,7 @@ static int dev_dax_kmem_probe(struct dev_dax *dev_dax)
 	if (!data->res_name)
 		goto err_res_name;
 
-	rc = memory_group_register_static(numa_node, total_len);
+	rc = memory_group_register_static(numa_node, PFN_UP(total_len));
 	if (rc < 0)
 		goto err_reg_mgid;
 	data->mgid = rc;
-- 
2.31.1