Commit e33ed362 authored by Colton Lewis's avatar Colton Lewis Committed by Ingo Molnar
Browse files

perf/arm: Drop unused functions 



For ARM's implementation, perf_instruction_pointer() and
perf_misc_flags() are equivalent to the generic versions in
include/linux/perf_event.h so arch/arm doesn't need to provide its
own versions. Drop them here.

Signed-off-by: default avatarColton Lewis <coltonlewis@google.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
Reviewed-by: default avatarOliver Upton <oliver.upton@linux.dev>
Acked-by: default avatarWill Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241113190156.2145593-2-coltonlewis@google.com
parent c554aa9c

arch/arm/include/asm/perf_event.h

+0 −7
Original line number Diff line number Diff line
@@ -8,13 +8,6 @@ 
#ifndef __ARM_PERF_EVENT_H__

#define __ARM_PERF_EVENT_H__



#ifdef CONFIG_PERF_EVENTS

struct pt_regs;

extern unsigned long perf_instruction_pointer(struct pt_regs *regs);

extern unsigned long perf_misc_flags(struct pt_regs *regs);

#define perf_misc_flags(regs)	perf_misc_flags(regs)

#endif



#define perf_arch_fetch_caller_regs(regs, __ip) { \

	(regs)->ARM_pc = (__ip); \

	frame_pointer((regs)) = (unsigned long) __builtin_frame_address(0); \

arch/arm/kernel/perf_callchain.c

+0 −17
Original line number Diff line number Diff line
@@ -96,20 +96,3 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re 
	arm_get_current_stackframe(regs, &fr);

	walk_stackframe(&fr, callchain_trace, entry);

}
 


unsigned long perf_instruction_pointer(struct pt_regs *regs)

{

	return instruction_pointer(regs);

}



unsigned long perf_misc_flags(struct pt_regs *regs)

{

	int misc = 0;



	if (user_mode(regs))

		misc |= PERF_RECORD_MISC_USER;

	else

		misc |= PERF_RECORD_MISC_KERNEL;



	return misc;

}