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authorRicardo B. Marliere <ricardo@marliere.net>2024-02-13 17:45:25 +0300
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2024-02-20 15:36:34 +0300
commitaaf2230036b709f979caccfbaa7a8bf671c22124 (patch)
tree73680ec8ae1f3e1cbe652549f71b75e1b6e987d3
parent1003a1adf493074bf7ba2d8075d87aa0ae73f69b (diff)
downloadlinux-aaf2230036b709f979caccfbaa7a8bf671c22124.tar.xz
tc: make tc_bus_type const
Since commit d492cc2573a0 ("driver core: device.h: make struct bus_type a const *"), the driver core can properly handle constant struct bus_type, move the tc_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> Acked-by: Maciej W. Rozycki <macro@orcam.me.uk> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
-rw-r--r--drivers/tc/tc-driver.c2
-rw-r--r--include/linux/tc.h2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/tc/tc-driver.c b/drivers/tc/tc-driver.c
index d45f2c1ff341..1c9d983a5a1f 100644
--- a/drivers/tc/tc-driver.c
+++ b/drivers/tc/tc-driver.c
@@ -95,7 +95,7 @@ static int tc_bus_match(struct device *dev, struct device_driver *drv)
return 0;
}
-struct bus_type tc_bus_type = {
+const struct bus_type tc_bus_type = {
.name = "tc",
.match = tc_bus_match,
};
diff --git a/include/linux/tc.h b/include/linux/tc.h
index a60639f37963..1638660abf5e 100644
--- a/include/linux/tc.h
+++ b/include/linux/tc.h
@@ -120,7 +120,7 @@ static inline unsigned long tc_get_speed(struct tc_bus *tbus)
#ifdef CONFIG_TC
-extern struct bus_type tc_bus_type;
+extern const struct bus_type tc_bus_type;
extern int tc_register_driver(struct tc_driver *tdrv);
extern void tc_unregister_driver(struct tc_driver *tdrv);