lkml.org 
[lkml]   [2024]   [Feb]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
Subject[PATCH 1/2] firmware: arm_ffa: Make ffa_bus_type const
Now that the driver core can properly handle constant struct bus_type,
move the ffa_bus_type 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>
---
drivers/firmware/arm_ffa/bus.c | 2 +-
include/linux/arm_ffa.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/firmware/arm_ffa/bus.c b/drivers/firmware/arm_ffa/bus.c
index 1c7940ba5539..2f557e90f2eb 100644
--- a/drivers/firmware/arm_ffa/bus.c
+++ b/drivers/firmware/arm_ffa/bus.c
@@ -105,7 +105,7 @@ static struct attribute *ffa_device_attributes_attrs[] = {
};
ATTRIBUTE_GROUPS(ffa_device_attributes);

-struct bus_type ffa_bus_type = {
+const struct bus_type ffa_bus_type = {
.name = "arm_ffa",
.match = ffa_device_match,
.probe = ffa_device_probe,
diff --git a/include/linux/arm_ffa.h b/include/linux/arm_ffa.h
index 3d0fde57ba90..c906f666ff5d 100644
--- a/include/linux/arm_ffa.h
+++ b/include/linux/arm_ffa.h
@@ -209,7 +209,7 @@ bool ffa_device_is_valid(struct ffa_device *ffa_dev) { return false; }
#define module_ffa_driver(__ffa_driver) \
module_driver(__ffa_driver, ffa_register, ffa_unregister)

-extern struct bus_type ffa_bus_type;
+extern const struct bus_type ffa_bus_type;

/* FFA transport related */
struct ffa_partition_info {
--
2.43.0


\
 
 \ /
  Last update: 2024-05-27 14:57    [W:0.099 / U:0.108 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site