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powerpc: pseries: make cmm_subsys const

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Because driver core can properly handle constant struct bus_type,
move the cmm_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/20250918140816.335916-3-abarnas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Adrian Barnaś
2025-09-18 14:08:16 +00:00
committed by Greg Kroah-Hartman
parent 6848990d4d
commit 8c00944301
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/pseries/cmm.c
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@@ -375,7 +375,7 @@ static struct device_attribute *cmm_attrs[] = {
static DEVICE_ULONG_ATTR(simulate_loan_target_kb, 0644,
simulate_loan_target_kb);
static struct bus_type cmm_subsys = {
static const struct bus_type cmm_subsys = {
.name = "cmm",
.dev_name = "cmm",
};