rpmsg: core: Make rpmsg_bus const

rbmarliere · mathieupoirier · commit b03aa6d4e9a7 · 2024-02-05T13:43:22.000-07:00
Now that the driver core can properly handle constant struct bus_type, move the rpmsg_bus 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> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Link: https://lore.kernel.org/r/20240204-bus_cleanup-rpmsg-v1-1-1703508c23b7@marliere.net Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
diff --git a/drivers/rpmsg/rpmsg_core.c b/drivers/rpmsg/rpmsg_core.c
@@ -605,7 +605,7 @@ static void rpmsg_dev_remove(struct device *dev)
 		rpmsg_destroy_ept(rpdev->ept);
 }
 
-static struct bus_type rpmsg_bus = {
+static const struct bus_type rpmsg_bus = {
 	.name		= "rpmsg",
 	.match		= rpmsg_dev_match,
 	.dev_groups	= rpmsg_dev_groups,

Original file line number	Diff line number	Diff line change
`@@ -605,7 +605,7 @@ static void rpmsg_dev_remove(struct device *dev)`
`605`	`605`	`rpmsg_destroy_ept(rpdev->ept);`
`606`	`606`	`}`
`607`	`607`
`608`		`-static struct bus_type rpmsg_bus = {`
	`608`	`+static const struct bus_type rpmsg_bus = {`
`609`	`609`	`.name = "rpmsg",`
`610`	`610`	`.match = rpmsg_dev_match,`
`611`	`611`	`.dev_groups = rpmsg_dev_groups,`