'struct bus_type' is not modified in this driver.
Constifying this structure moves some data to a read-only section, so
increase overall security, especially when the structure holds some
function pointers.
On a x86_64, with allmodconfig:
Before:
======
text data bss dec hex filename
19925 2493 16 22434 57a2 drivers/hwtracing/intel_th/core.o
After:
=====
text data bss dec hex filename
20101 2333 16 22450 57b2 drivers/hwtracing/intel_th/core.o
Signed-off-by: Christophe JAILLET <christophe.jaillet@xxxxxxxxxx>
---
Compile tested-only.
---
drivers/hwtracing/intel_th/core.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/hwtracing/intel_th/core.c b/drivers/hwtracing/intel_th/core.c
index d72993355473..4ffefab7ef4b 100644
--- a/drivers/hwtracing/intel_th/core.c
+++ b/drivers/hwtracing/intel_th/core.c
@@ -166,7 +166,7 @@ static void intel_th_remove(struct device *dev)
pm_runtime_enable(dev);
}
-static struct bus_type intel_th_bus = {
+static const struct bus_type intel_th_bus = {
.name = "intel_th",
.match = intel_th_match,
.probe = intel_th_probe,
--
2.45.2
