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mmc: core: constify the struct device_type usage 

Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the sdio_type,
sd_type and mmc_type variables to be constant structures as well, placing
it into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240219-device_cleanup-mmc-v1-1-1910e283cf5a@marliere.net
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Ricardo B. Marliere 2024-02-19 09:43:57 -03:00 committed by Ulf Hansson
parent 017199c284
commit 68f5630ae1
6 changed files with 6 additions and 6 deletions
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2
drivers/mmc/core/bus.c
View File

@ -272,7 +272,7 @@ static void mmc_release_card(struct device *dev)
/*
* Allocate and initialise a new MMC card structure.
*/
struct mmc_card *mmc_alloc_card(struct mmc_host *host, struct device_type *type)
struct mmc_card *mmc_alloc_card(struct mmc_host *host, const struct device_type *type)
{
struct mmc_card *card;

2
drivers/mmc/core/bus.h
View File

@ -23,7 +23,7 @@ static ssize_t mmc_##name##_show (struct device *dev, struct device_attribute *a
static DEVICE_ATTR(name, S_IRUGO, mmc_##name##_show, NULL)
struct mmc_card *mmc_alloc_card(struct mmc_host *host,
struct device_type *type);
const struct device_type *type);
int mmc_add_card(struct mmc_card *card);
void mmc_remove_card(struct mmc_card *card);

2
drivers/mmc/core/mmc.c
View File

@ -883,7 +883,7 @@ static struct attribute *mmc_std_attrs[] = {
};
ATTRIBUTE_GROUPS(mmc_std);
static struct device_type mmc_type = {
static const struct device_type mmc_type = {
.groups = mmc_std_groups,
};

2
drivers/mmc/core/sd.c
View File

@ -805,7 +805,7 @@ static const struct attribute_group sd_std_group = {
};
__ATTRIBUTE_GROUPS(sd_std);
struct device_type sd_type = {
const struct device_type sd_type = {
.groups = sd_std_groups,
};

2
drivers/mmc/core/sd.h
View File

@ -4,7 +4,7 @@
#include <linux/types.h>
extern struct device_type sd_type;
extern const struct device_type sd_type;
struct mmc_host;
struct mmc_card;

2
drivers/mmc/core/sdio.c
View File

@ -66,7 +66,7 @@ static struct attribute *sdio_std_attrs[] = {
};
ATTRIBUTE_GROUPS(sdio_std);
static struct device_type sdio_type = {
static const struct device_type sdio_type = {
.groups = sdio_std_groups,
};