Re: [for-next][PATCH 13/23] USB: mtu3: tracing: Use the new __vstring() helper

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On Tue, 19 Jul 2022 13:23:06 +0800
Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx> wrote:

> > Care to send me a patch, and I'll just include it in my series?  
> Seems no need add another patch, just modify this patch as below:
> 
> diff --git a/drivers/usb/mtu3/mtu3_trace.h
> b/drivers/usb/mtu3/mtu3_trace.h
> index a09deae1146f..03d2a9bac27e 100644
> --- a/drivers/usb/mtu3/mtu3_trace.h
> +++ b/drivers/usb/mtu3/mtu3_trace.h
> @@ -18,18 +18,16 @@
> 
>  #include "mtu3.h"
> 
> -#define MTU3_MSG_MAX   256
> -
>  TRACE_EVENT(mtu3_log,
>         TP_PROTO(struct device *dev, struct va_format *vaf),
>         TP_ARGS(dev, vaf),
>         TP_STRUCT__entry(
>                 __string(name, dev_name(dev))
> -               __dynamic_array(char, msg, MTU3_MSG_MAX)
> +               __vstring(msg, vaf->fmt, vaf->va)
>         ),
>         TP_fast_assign(
>                 __assign_str(name, dev_name(dev));
> -               vsnprintf(__get_str(msg), MTU3_MSG_MAX, vaf->fmt, *vaf-
> >va);  
> +               __assign_vstr(msg, vaf->fmt, vaf->va);
>         ),
>         TP_printk("%s: %s", __get_str(name), __get_str(msg))
>  );
> >   
> 
> remove below two lines
> "
> -#define MTU3_MSG_MAX   256
> -

Fine.

Even though I already pushed to linux-next, I did something I seldom do. I
rebased my for-next branch and removed this patch.

I'll send a v2.

-- Steve



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