mmc: core: make mmc_host_class constant

Since commit 43a7206b0963 ("driver core: class: make class_register() take
a const *"), the driver core allows for struct class to be in read-only
memory, so move the mmc_host_class structure to be declared at build time
placing it into read-only memory, instead of having to be dynamically
allocated at boot time.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Link: https://lore.kernel.org/r/20240305-class_cleanup-mmc-v1-1-4a66e7122ff3@marliere.net
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 3aa9dda..8f8781d 100644 (file)
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -88,7 +88,7 @@ static int mmc_host_classdev_shutdown(struct device *dev)
        return 0;
 }
 
-static struct class mmc_host_class = {
+static const struct class mmc_host_class = {
        .name           = "mmc_host",
        .dev_release    = mmc_host_classdev_release,
        .shutdown_pre   = mmc_host_classdev_shutdown,