Re: [PATCH] hw_breakpoint: Remove unused '__register_perf_hw_breakpoint' declaration

[Mark Rutland]

Hi Bhupesh,

On Tue, Apr 28, 2020 at 02:22:17PM +0530, Bhupesh Sharma wrote:
> commit b326e9560a28 ("hw-breakpoints: Use overflow handler instead of
> the event callback") removed '__register_perf_hw_breakpoint' function
> usage and replaced it with 'register_perf_hw_breakpoint' function.
> 
> Remove the left-over unused '__register_perf_hw_breakpoint' declaration
> from 'hw_breakpoint.h' as well.
> 
> Cc: Mark Rutland <mark.rutland@xxxxxxx>
> Cc: Will Deacon <will@xxxxxxxxxx>
> Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
> Signed-off-by: Bhupesh Sharma <bhsharma@xxxxxxxxxx>

This is generic code, so I'm a bit confused as to why you've sent it to
us. I'd expect this to go via the perf core maintainers (cc'd).

FWIW, this looks sane to me, so:

Acked-by: Mark Rutland <mark.rutland@xxxxxxx>

Mark.

> ---
>  include/linux/hw_breakpoint.h | 3 ---
>  1 file changed, 3 deletions(-)
> 
> diff --git a/include/linux/hw_breakpoint.h b/include/linux/hw_breakpoint.h
> index 6058c3844a76..fe1302da8e0f 100644
> --- a/include/linux/hw_breakpoint.h
> +++ b/include/linux/hw_breakpoint.h
> @@ -72,7 +72,6 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
>  			    void *context);
>  
>  extern int register_perf_hw_breakpoint(struct perf_event *bp);
> -extern int __register_perf_hw_breakpoint(struct perf_event *bp);
>  extern void unregister_hw_breakpoint(struct perf_event *bp);
>  extern void unregister_wide_hw_breakpoint(struct perf_event * __percpu *cpu_events);
>  
> @@ -115,8 +114,6 @@ register_wide_hw_breakpoint(struct perf_event_attr *attr,
>  			    void *context)		{ return NULL; }
>  static inline int
>  register_perf_hw_breakpoint(struct perf_event *bp)	{ return -ENOSYS; }
> -static inline int
> -__register_perf_hw_breakpoint(struct perf_event *bp) 	{ return -ENOSYS; }
>  static inline void unregister_hw_breakpoint(struct perf_event *bp)	{ }
>  static inline void
>  unregister_wide_hw_breakpoint(struct perf_event * __percpu *cpu_events)	{ }
> -- 
> 2.7.4
>