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From: "Ricardo B. Marliere" <>
To: Dan Williams <>,
	 Vishal Verma <>,
	Dave Jiang <>
	 Greg Kroah-Hartman <>,
	 "Ricardo B. Marliere" <>
Subject: [PATCH] dax: constify the struct device_type usage
Date: Mon, 19 Feb 2024 09:47:28 -0300	[thread overview]
Message-ID: <> (raw)

Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
dax_mapping_type variable to be a constant structure as well, placing it
into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <>
Signed-off-by: Ricardo B. Marliere <>
 drivers/dax/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 1ff1ab5fa105..e265ba019785 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -763,7 +763,7 @@ static const struct attribute_group *dax_mapping_attribute_groups[] = {
-static struct device_type dax_mapping_type = {
+static const struct device_type dax_mapping_type = {
 	.release = dax_mapping_release,
 	.groups = dax_mapping_attribute_groups,

base-commit: b401b621758e46812da61fa58a67c3fd8d91de0d
change-id: 20240219-device_cleanup-dax-d82fd0c67ffd

Best regards,
Ricardo B. Marliere <>

             reply	other threads:[~2024-02-19 12:46 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-19 12:47 Ricardo B. Marliere [this message]
2024-02-24  0:06 ` [PATCH] dax: constify the struct device_type usage Dave Jiang

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