Commit 1b248817 authored by Nathan Lynch's avatar Nathan Lynch Committed by Michael Ellerman
Browse files

powerpc/rtas: remove unused rtas_suspend_last_cpu() 



rtas_suspend_last_cpu() is now unused, remove it and
__rtas_suspend_last_cpu() which also becomes unused.

Signed-off-by: default avatarNathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201207215200.1785968-24-nathanl@linux.ibm.com
parent 366fb13b

arch/powerpc/include/asm/rtas.h

+0 −1
Original line number Diff line number Diff line
@@ -256,7 +256,6 @@ extern bool rtas_indicator_present(int token, int *maxindex); 
extern int rtas_set_indicator(int indicator, int index, int new_value);

extern int rtas_set_indicator_fast(int indicator, int index, int new_value);

extern void rtas_progress(char *s, unsigned short hex);

extern int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data);

int rtas_ibm_suspend_me(int *fw_status);



struct rtc_time;

arch/powerpc/kernel/rtas.c

+0 −43
Original line number Diff line number Diff line
@@ -830,49 +830,6 @@ void rtas_activate_firmware(void) 


static int ibm_suspend_me_token = RTAS_UNKNOWN_SERVICE;

#ifdef CONFIG_PPC_PSERIES

static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_when_done)

{

	u16 slb_size = mmu_slb_size;

	int rc = H_MULTI_THREADS_ACTIVE;

	int cpu;



	slb_set_size(SLB_MIN_SIZE);

	printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n", smp_processor_id());



	while (rc == H_MULTI_THREADS_ACTIVE && !atomic_read(&data->done) &&

	       !atomic_read(&data->error))

		rc = rtas_call(data->token, 0, 1, NULL);



	if (rc || atomic_read(&data->error)) {

		printk(KERN_DEBUG "ibm,suspend-me returned %d\n", rc);

		slb_set_size(slb_size);

	}



	if (atomic_read(&data->error))

		rc = atomic_read(&data->error);



	atomic_set(&data->error, rc);

	pSeries_coalesce_init();



	if (wake_when_done) {

		atomic_set(&data->done, 1);



		for_each_online_cpu(cpu)

			plpar_hcall_norets(H_PROD, get_hard_smp_processor_id(cpu));

	}



	if (atomic_dec_return(&data->working) == 0)

		complete(data->complete);



	return rc;

}



int rtas_suspend_last_cpu(struct rtas_suspend_me_data *data)

{

	atomic_inc(&data->working);

	return __rtas_suspend_last_cpu(data, 0);

}



/**

 * rtas_call_reentrant() - Used for reentrant rtas calls

 * @token:	Token for desired reentrant RTAS call