Re: [PATCH v1 04/11] arm_mpam: Add missing mon_sel locking in MBWU restore

[Gavin Shan]

On 7/10/26 9:55 PM, Ben Horgan wrote:
> The mon_sel_lock is used to protect the mbwu_state, as well as h/w accesses
> that use MPAMCFG_MON_SEL. However, in mpam_restore_mbwu_state() mbwu_state
> is accessed without holding the mon_sel_lock.
>
> Add the missing locking.
>
> Fixes: 41e8a14950e1 ("arm_mpam: Track bandwidth counter state for power management")
> Signed-off-by: Ben Horgan <ben.horgan@xxxxxxx>
> ---
>   drivers/resctrl/mpam_devices.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
Reviewed-by: Gavin Shan <gshan@xxxxxxxxxx>