Messages in this thread Patch in this message | | | From | "Ricardo B. Marliere" <> | Date | Sun, 11 Feb 2024 12:45:08 -0300 | Subject | [PATCH 2/2] ARM: ecard: make ecard_bus_type const |
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Now that the driver core can properly handle constant struct bus_type, move the ecard_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: Ricardo B. Marliere <ricardo@marliere.net> --- arch/arm/include/asm/ecard.h | 2 +- arch/arm/mach-rpc/ecard.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/include/asm/ecard.h b/arch/arm/include/asm/ecard.h index 4befe8d2ae19..7cbe001bf9cc 100644 --- a/arch/arm/include/asm/ecard.h +++ b/arch/arm/include/asm/ecard.h @@ -195,7 +195,7 @@ void __iomem *ecardm_iomap(struct expansion_card *ec, unsigned int res, unsigned long offset, unsigned long maxsize); #define ecardm_iounmap(__ec, __addr) devm_iounmap(&(__ec)->dev, __addr) -extern struct bus_type ecard_bus_type; +extern const struct bus_type ecard_bus_type; #define ECARD_DEV(_d) container_of((_d), struct expansion_card, dev) diff --git a/arch/arm/mach-rpc/ecard.c b/arch/arm/mach-rpc/ecard.c index c30df1097c52..4b843cffcac2 100644 --- a/arch/arm/mach-rpc/ecard.c +++ b/arch/arm/mach-rpc/ecard.c @@ -1124,7 +1124,7 @@ static int ecard_match(struct device *_dev, struct device_driver *_drv) return ret; } -struct bus_type ecard_bus_type = { +const struct bus_type ecard_bus_type = { .name = "ecard", .dev_groups = ecard_dev_groups, .match = ecard_match, -- 2.43.0
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