linux-kernel - Re: [PATCH 3/3] cdnsp: Remove unused tracepoints

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Message-ID: <20250901022957.GA2344733@nchen-desktop>
Date: Mon, 1 Sep 2025 10:29:57 +0800
From: "Peter Chen (CIX)" <peter.chen@...nel.org>
To: Steven Rostedt <rostedt@...nel.org>
Cc: linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org,
	linux-usb@...r.kernel.org, Masami Hiramatsu <mhiramat@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Pawel Laszczak <pawell@...ence.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH 3/3] cdnsp: Remove unused tracepoints

On 25-08-28 21:55:55, Steven Rostedt wrote:
> From: Steven Rostedt <rostedt@...dmis.org>
> 
> Tracepoints that are defined take up around 5K each, even if they are not
> used. If they are defined and not used, then they waste memory for unused
> code. Soon unused tracepoints will cause warnings.
> 
> Remove the unused tracepoints of the cdnsp subsystem. They are:
> 
> cdnsp_defered_event
> cdnsp_ep0_halted
> cdnsp_free_priv_device
> cdnsp_handle_cmd_flush_ep
> 
> Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>

Acked-by: Peter Chen <peter.chen@...nel.org>

Peter
> ---
>  drivers/usb/cdns3/cdnsp-trace.h | 25 -------------------------
>  1 file changed, 25 deletions(-)
> 
> diff --git a/drivers/usb/cdns3/cdnsp-trace.h b/drivers/usb/cdns3/cdnsp-trace.h
> index f2bcf77a5d0a..9b33a736c3de 100644
> --- a/drivers/usb/cdns3/cdnsp-trace.h
> +++ b/drivers/usb/cdns3/cdnsp-trace.h
> @@ -178,11 +178,6 @@ DEFINE_EVENT(cdnsp_log_simple, cdnsp_ep0_set_config,
>  	TP_ARGS(msg)
>  );
>  
> -DEFINE_EVENT(cdnsp_log_simple, cdnsp_ep0_halted,
> -	TP_PROTO(char *msg),
> -	TP_ARGS(msg)
> -);
> -
>  DEFINE_EVENT(cdnsp_log_simple, cdnsp_ep_halt,
>  	TP_PROTO(char *msg),
>  	TP_ARGS(msg)
> @@ -399,11 +394,6 @@ DEFINE_EVENT(cdnsp_log_trb, cdnsp_cmd_timeout,
>  	TP_ARGS(ring, trb)
>  );
>  
> -DEFINE_EVENT(cdnsp_log_trb, cdnsp_defered_event,
> -	TP_PROTO(struct cdnsp_ring *ring, struct cdnsp_generic_trb *trb),
> -	TP_ARGS(ring, trb)
> -);
> -
>  DECLARE_EVENT_CLASS(cdnsp_log_pdev,
>  	TP_PROTO(struct cdnsp_device *pdev),
>  	TP_ARGS(pdev),
> @@ -433,16 +423,6 @@ DEFINE_EVENT(cdnsp_log_pdev, cdnsp_alloc_priv_device,
>  	TP_ARGS(vdev)
>  );
>  
> -DEFINE_EVENT(cdnsp_log_pdev, cdnsp_free_priv_device,
> -	TP_PROTO(struct cdnsp_device *vdev),
> -	TP_ARGS(vdev)
> -);
> -
> -DEFINE_EVENT(cdnsp_log_pdev, cdnsp_setup_device,
> -	TP_PROTO(struct cdnsp_device *vdev),
> -	TP_ARGS(vdev)
> -);
> -
>  DEFINE_EVENT(cdnsp_log_pdev, cdnsp_setup_addressable_priv_device,
>  	TP_PROTO(struct cdnsp_device *vdev),
>  	TP_ARGS(vdev)
> @@ -575,11 +555,6 @@ DEFINE_EVENT(cdnsp_log_ep_ctx, cdnsp_handle_cmd_stop_ep,
>  	TP_ARGS(ctx)
>  );
>  
> -DEFINE_EVENT(cdnsp_log_ep_ctx, cdnsp_handle_cmd_flush_ep,
> -	TP_PROTO(struct cdnsp_ep_ctx *ctx),
> -	TP_ARGS(ctx)
> -);
> -
>  DEFINE_EVENT(cdnsp_log_ep_ctx, cdnsp_handle_cmd_set_deq_ep,
>  	TP_PROTO(struct cdnsp_ep_ctx *ctx),
>  	TP_ARGS(ctx)
> -- 
> 2.50.1
> 
> 

-- 

Best regards,
Peter