[PATCH v3 11/47] arm64: mpam: Add helpers to change a task or cpu's MPAM PARTID/PMG values

[Gavin Shan]

On 1/16/26 3:13 AM, Catalin Marinas wrote:
> On Mon, Jan 12, 2026 at 04:58:38PM +0000, Ben Horgan wrote:
>> +static inline void mpam_set_task_partid_pmg(struct task_struct *tsk,
>> +					    u16 partid_d, u16 partid_i,
>> +					    u8 pmg_d, u8 pmg_i)
>> +{
>> +#ifdef CONFIG_ARM64_MPAM
>> +	u64 regval = __mpam_regval(partid_d, partid_i, pmg_d, pmg_i);
>> +
>> +	WRITE_ONCE(task_thread_info(tsk)->mpam_partid_pmg, regval);
>> +#endif
>> +}
> 
> Isn't this function, together with mpam_thread_switch(), in an enclosing
> #ifdef already?
> 

I think Catalin is correct that this ifdef inside mpam_set_task_partid_pmg()
can be dropped.

>> +
>>   static inline void mpam_thread_switch(struct task_struct *tsk)
>>   {
>>   	u64 oldregval;
>> -- 
>> 2.43.0
>>

Thanks,
Gavin