powerpc: pseries: make suspend_subsys const

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

Signed-off-by: Adrian Barnaś <abarnas@google.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/20250918140816.335916-2-abarnas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 382003dfdb9ab2f83f54bd83b46ec10d00397b6d..c51db63d3e88d38dfc42d84cc1b5532b6ca03b1e 100644 (file)
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -126,7 +126,7 @@ static ssize_t show_hibernate(struct device *dev,
 
 static DEVICE_ATTR(hibernate, 0644, show_hibernate, store_hibernate);
 
-static struct bus_type suspend_subsys = {
+static const struct bus_type suspend_subsys = {
        .name = "power",
        .dev_name = "power",
 };