Re: [PATCH v2 0/4] Add trace events for SD registers.

[Ulf Hansson <ulf.hansson@xxxxxxxxxx>]

On Tue, 16 Apr 2019 at 20:33, Raul E Rangel <rrangel@xxxxxxxxxxxx> wrote:
>
> I am not able to make a single event class for all these registers. They
> all have different struct sizes and different printf formats.
>
> Thanks for the reviews!
>
> Changes in v2:
> - Made trace_sd_scr print out flags.
> - Add BUILD_BUG_ON to make sure tracing stays in sync with structs.
> - memcpy using sizeof(__entry->raw)
>
> Raul E Rangel (4):
>   mmc: core: Add trace event for SD SCR response
>   mmc: core: Add trace event for SD SSR response
>   mmc: core: Add trace event for SD OCR response
>   mmc: core: Add trace event for CSD response
>
>  drivers/mmc/core/mmc.c     |   4 +
>  drivers/mmc/core/sd.c      |  10 ++
>  drivers/mmc/core/sd_ops.c  |   6 ++
>  include/trace/events/mmc.h | 204 +++++++++++++++++++++++++++++++++++++
>  4 files changed, 224 insertions(+)
>
> --
> 2.21.0.392.gf8f6787159e-goog
>

Why do you need this? We already have these card registers reflected
though sysfs files, isn't that sufficient?

Kind regards
Uffe