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iucv: make iucv_bus const

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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>
This commit is contained in:
Greg Kroah-Hartman 2023-12-20 08:41:18 +01:00 committed by David S. Miller
parent 1271ca00aa
commit f732ba4ac9
2 changed files with 3 additions and 3 deletions
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4
include/net/iucv/iucv.h
View File

@ -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;
};

2
net/iucv/iucv.c
View File

@ -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,
};