mmc: core: make mmc_host_class constant

rbmarliere · Ulf Hansson · commit faf3b8014c35 · 2024-03-06T23:36:29.000+01:00
Since commit 43a7206 ("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
@@ -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,

Original file line number	Diff line number	Diff line change
`@@ -88,7 +88,7 @@ static int mmc_host_classdev_shutdown(struct device *dev)`
`88`	`88`	`return 0;`
`89`	`89`	`}`
`90`	`90`
`91`		`-static struct class mmc_host_class = {`
	`91`	`+static const struct class mmc_host_class = {`
`92`	`92`	`.name = "mmc_host",`
`93`	`93`	`.dev_release = mmc_host_classdev_release,`
`94`	`94`	`.shutdown_pre = mmc_host_classdev_shutdown,`