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Message-Id: <20240219-device_cleanup-fsl-mc-v1-1-d206b8b90f2b@marliere.net>
Date: Mon, 19 Feb 2024 09:03:11 -0300
From: "Ricardo B. Marliere" <ricardo@...liere.net>
To: Stuart Yoder <stuyoder@...il.com>,
Laurentiu Tudor <laurentiu.tudor@....com>, Li Yang <leoyang.li@....com>
Cc: linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-arm-kernel@...ts.infradead.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
"Ricardo B. Marliere" <ricardo@...liere.net>
Subject: [PATCH next] bus: fsl-mc: constify the struct device_type usage
Since commit aed65af1cc2f ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move all the
device_type variables used in the bus to be constant structures as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@...liere.net>
---
drivers/bus/fsl-mc/fsl-mc-bus.c | 32 ++++++++++++++++----------------
include/linux/fsl/mc.h | 30 +++++++++++++++---------------
2 files changed, 31 insertions(+), 31 deletions(-)
diff --git a/drivers/bus/fsl-mc/fsl-mc-bus.c b/drivers/bus/fsl-mc/fsl-mc-bus.c
index 78b96cd63de9..f75ca3f0d75a 100644
--- a/drivers/bus/fsl-mc/fsl-mc-bus.c
+++ b/drivers/bus/fsl-mc/fsl-mc-bus.c
@@ -320,82 +320,82 @@ struct bus_type fsl_mc_bus_type = {
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
-struct device_type fsl_mc_bus_dprc_type = {
+const struct device_type fsl_mc_bus_dprc_type = {
.name = "fsl_mc_bus_dprc"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dprc_type);
-struct device_type fsl_mc_bus_dpni_type = {
+const struct device_type fsl_mc_bus_dpni_type = {
.name = "fsl_mc_bus_dpni"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpni_type);
-struct device_type fsl_mc_bus_dpio_type = {
+const struct device_type fsl_mc_bus_dpio_type = {
.name = "fsl_mc_bus_dpio"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpio_type);
-struct device_type fsl_mc_bus_dpsw_type = {
+const struct device_type fsl_mc_bus_dpsw_type = {
.name = "fsl_mc_bus_dpsw"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpsw_type);
-struct device_type fsl_mc_bus_dpbp_type = {
+const struct device_type fsl_mc_bus_dpbp_type = {
.name = "fsl_mc_bus_dpbp"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpbp_type);
-struct device_type fsl_mc_bus_dpcon_type = {
+const struct device_type fsl_mc_bus_dpcon_type = {
.name = "fsl_mc_bus_dpcon"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpcon_type);
-struct device_type fsl_mc_bus_dpmcp_type = {
+const struct device_type fsl_mc_bus_dpmcp_type = {
.name = "fsl_mc_bus_dpmcp"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmcp_type);
-struct device_type fsl_mc_bus_dpmac_type = {
+const struct device_type fsl_mc_bus_dpmac_type = {
.name = "fsl_mc_bus_dpmac"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpmac_type);
-struct device_type fsl_mc_bus_dprtc_type = {
+const struct device_type fsl_mc_bus_dprtc_type = {
.name = "fsl_mc_bus_dprtc"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dprtc_type);
-struct device_type fsl_mc_bus_dpseci_type = {
+const struct device_type fsl_mc_bus_dpseci_type = {
.name = "fsl_mc_bus_dpseci"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpseci_type);
-struct device_type fsl_mc_bus_dpdmux_type = {
+const struct device_type fsl_mc_bus_dpdmux_type = {
.name = "fsl_mc_bus_dpdmux"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmux_type);
-struct device_type fsl_mc_bus_dpdcei_type = {
+const struct device_type fsl_mc_bus_dpdcei_type = {
.name = "fsl_mc_bus_dpdcei"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdcei_type);
-struct device_type fsl_mc_bus_dpaiop_type = {
+const struct device_type fsl_mc_bus_dpaiop_type = {
.name = "fsl_mc_bus_dpaiop"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpaiop_type);
-struct device_type fsl_mc_bus_dpci_type = {
+const struct device_type fsl_mc_bus_dpci_type = {
.name = "fsl_mc_bus_dpci"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpci_type);
-struct device_type fsl_mc_bus_dpdmai_type = {
+const struct device_type fsl_mc_bus_dpdmai_type = {
.name = "fsl_mc_bus_dpdmai"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdmai_type);
-struct device_type fsl_mc_bus_dpdbg_type = {
+const struct device_type fsl_mc_bus_dpdbg_type = {
.name = "fsl_mc_bus_dpdbg"
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_dpdbg_type);
diff --git a/include/linux/fsl/mc.h b/include/linux/fsl/mc.h
index a1b3de87a3d1..4b9311f122e0 100644
--- a/include/linux/fsl/mc.h
+++ b/include/linux/fsl/mc.h
@@ -438,21 +438,21 @@ struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev,
extern struct bus_type fsl_mc_bus_type;
-extern struct device_type fsl_mc_bus_dprc_type;
-extern struct device_type fsl_mc_bus_dpni_type;
-extern struct device_type fsl_mc_bus_dpio_type;
-extern struct device_type fsl_mc_bus_dpsw_type;
-extern struct device_type fsl_mc_bus_dpbp_type;
-extern struct device_type fsl_mc_bus_dpcon_type;
-extern struct device_type fsl_mc_bus_dpmcp_type;
-extern struct device_type fsl_mc_bus_dpmac_type;
-extern struct device_type fsl_mc_bus_dprtc_type;
-extern struct device_type fsl_mc_bus_dpseci_type;
-extern struct device_type fsl_mc_bus_dpdmux_type;
-extern struct device_type fsl_mc_bus_dpdcei_type;
-extern struct device_type fsl_mc_bus_dpaiop_type;
-extern struct device_type fsl_mc_bus_dpci_type;
-extern struct device_type fsl_mc_bus_dpdmai_type;
+extern const struct device_type fsl_mc_bus_dprc_type;
+extern const struct device_type fsl_mc_bus_dpni_type;
+extern const struct device_type fsl_mc_bus_dpio_type;
+extern const struct device_type fsl_mc_bus_dpsw_type;
+extern const struct device_type fsl_mc_bus_dpbp_type;
+extern const struct device_type fsl_mc_bus_dpcon_type;
+extern const struct device_type fsl_mc_bus_dpmcp_type;
+extern const struct device_type fsl_mc_bus_dpmac_type;
+extern const struct device_type fsl_mc_bus_dprtc_type;
+extern const struct device_type fsl_mc_bus_dpseci_type;
+extern const struct device_type fsl_mc_bus_dpdmux_type;
+extern const struct device_type fsl_mc_bus_dpdcei_type;
+extern const struct device_type fsl_mc_bus_dpaiop_type;
+extern const struct device_type fsl_mc_bus_dpci_type;
+extern const struct device_type fsl_mc_bus_dpdmai_type;
static inline bool is_fsl_mc_bus_dprc(const struct fsl_mc_device *mc_dev)
{
---
base-commit: b401b621758e46812da61fa58a67c3fd8d91de0d
change-id: 20240219-device_cleanup-fsl-mc-b2d8f7a5308d
Best regards,
--
Ricardo B. Marliere <ricardo@...liere.net>
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