Commit f732ba4a authored Dec 20, 2023 by Greg Kroah-Hartman Committed by David S. Miller Dec 29, 2023

iucv: make iucv_bus const

Now that the driver core can properly handle constant struct bus_type,
move the iucv_bus variable to be a constant structure as well, placing
it into read-only memory which can not be modified at runtime.

Cc: Wenjia Zhang <wenjia@linux.ibm.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: linux-s390@vger.kernel.org
Cc: netdev@vger.kernel.org
Acked-by: Alexandra Winter <wintera@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 1271ca00

include/net/iucv/iucv.h

+2 −2

Original line number	Diff line number	Diff line
		@@ -80,7 +80,7 @@ struct iucv_array {
		u32 length;
		} __attribute__ ((aligned (8)));

		extern struct bus_type iucv_bus;
		extern const struct bus_type iucv_bus;
		extern struct device *iucv_root;

		/*
		@@ -489,7 +489,7 @@ struct iucv_interface {
		int (path_sever)(struct iucv_path path, u8 userdata[16]);
		int (iucv_register)(struct iucv_handler handler, int smp);
		void (iucv_unregister)(struct iucv_handler handler, int smp);
		struct bus_type *bus;
		const struct bus_type *bus;
		struct device *root;
		};

net/iucv/iucv.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -67,7 +67,7 @@ static int iucv_bus_match(struct device dev, struct device_driver drv)
		return 0;
		}

		struct bus_type iucv_bus = {
		const struct bus_type iucv_bus = {
		.name = "iucv",
		.match = iucv_bus_match,
		};