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Commit 687b16fb authored by Frederic Weisbecker's avatar Frederic Weisbecker Committed by Ingo Molnar
Browse files

hw-breakpoints: Provide an off-case for counter_arch_bp() 



If an arch doesn't support the hw breakpoints, counter_arch_bp()
has no off case to cover the missing breakpoint info structure
from the perf event. The result is a build error in non-x86
configs.

Reported-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarFrederic Weisbecker <fweisbec@gmail.com>
Cc: Prasad <prasad@linux.vnet.ibm.com>
LKML-Reference: <1258114575-32655-1-git-send-email-fweisbec@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Cc: Prasad <prasad@linux.vnet.ibm.com>
parent 59d8eb53

include/linux/hw_breakpoint.h

+10 −5
Original line number Diff line number Diff line
@@ -16,11 +16,6 @@ enum { 
	HW_BREAKPOINT_X = 4,

};



static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)

{

	return &bp->hw.info;

}



static inline unsigned long hw_breakpoint_addr(struct perf_event *bp)

{

	return bp->attr.bp_addr;
@@ -83,6 +78,11 @@ extern void release_bp_slot(struct perf_event *bp); 


extern void flush_ptrace_hw_breakpoint(struct task_struct *tsk);



static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)

{

	return &bp->hw.info;

}



#else /* !CONFIG_HAVE_HW_BREAKPOINT */



static inline struct perf_event *
@@ -126,6 +126,11 @@ static inline void release_bp_slot(struct perf_event *bp) { } 


static inline void flush_ptrace_hw_breakpoint(struct task_struct *tsk)	{ }



static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)

{

	return NULL;

}



#endif /* CONFIG_HAVE_HW_BREAKPOINT */



#endif /* _LINUX_HW_BREAKPOINT_H */