Re: [PATCH 5/6] xen/credit2: Clean up trace handling

[Jan Beulich <jbeulich@xxxxxxxx>]

On 17.09.2021 10:45, Andrew Cooper wrote:
> There is no need for bitfields anywhere - use more sensible types.  There is
> also no need to cast 'd' to (unsigned char *) before passing it to a function
> taking void *.
> 
> No functional change.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
with (nit) ...

> @@ -1888,18 +1883,17 @@ void burn_credits(struct csched2_runqueue_data *rqd,
>      if ( unlikely(tb_init_done) )
>      {
>          struct {
> -            unsigned unit:16, dom:16;
> -            int credit, budget;
> -            int delta;
> -        } d;
> -        d.dom = svc->unit->domain->domain_id;
> -        d.unit = svc->unit->unit_id;
> -        d.credit = svc->credit;
> -        d.budget = has_cap(svc) ?  svc->budget : INT_MIN;
> -        d.delta = delta;
> -        __trace_var(TRC_CSCHED2_CREDIT_BURN, 1,
> -                    sizeof(d),
> -                    (unsigned char *)&d);
> +            uint16_t unit, dom;
> +            uint32_t credit, budget, delta;
> +        } d = {
> +            .unit    = svc->unit->unit_id,
> +            .dom     = svc->unit->domain->domain_id,
> +            .credit  = svc->credit,
> +            .budget  = has_cap(svc) ?  svc->budget : INT_MIN,

... a stray blank removed here.

Jan