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bus: fsl-mc: make fsl_mc_bus_type const

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Since commit d492cc2573 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the fsl_mc_bus_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 <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Acked-by: Christophe Leroy <christophe.leroy@csgroup.eu> # for
Link: https://lore.kernel.org/r/20240823062440.113628-1-kunwu.chan@linux.dev
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Kunwu Chan 2024-08-23 14:24:40 +08:00 committed by Greg Kroah-Hartman
parent ba82e10c3c
commit 8ab0f4605d
2 changed files with 2 additions and 2 deletions
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2
drivers/bus/fsl-mc/fsl-mc-bus.c
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@ -309,7 +309,7 @@ static struct attribute *fsl_mc_bus_attrs[] = {
ATTRIBUTE_GROUPS(fsl_mc_bus); ATTRIBUTE_GROUPS(fsl_mc_bus);
struct bus_type fsl_mc_bus_type = { const struct bus_type fsl_mc_bus_type = {
.name = "fsl-mc", .name = "fsl-mc",
.match = fsl_mc_bus_match, .match = fsl_mc_bus_match,
.uevent = fsl_mc_bus_uevent, .uevent = fsl_mc_bus_uevent,

2
include/linux/fsl/mc.h
View File

@ -436,7 +436,7 @@ void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev);
struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev, struct fsl_mc_device *fsl_mc_get_endpoint(struct fsl_mc_device *mc_dev,
u16 if_id); u16 if_id);
extern struct bus_type fsl_mc_bus_type; extern const struct bus_type fsl_mc_bus_type;
extern struct device_type fsl_mc_bus_dprc_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_dpni_type;