Re: [PATCH v2 01/20] rv: Refactor da_monitor to minimise macros

[Nam Cao <namcao@linutronix.de>]

Gabriele Monaco <gmonaco@redhat.com> writes:
> The da_monitor helper functions are generated from macros of the type:
>
> DECLARE_DA_FUNCTION(name, type) \
> static void da_func_x_##name(type arg) {} \
> static void da_func_y_##name(type arg) {} \
>
> This is good to minimise code duplication but the long macros made of
> skipped end of lines is rather hard to parse. Since functions are
> static, the advantage of naming them differently for each monitor is
> minimal.
>
> Refactor the da_monitor.h file to minimise macros, instead of declaring
> functions from macros, we simply declare them with the same name for all
> monitors (e.g. da_func_x) and for any remaining reference to the monitor
> name (e.g. tracepoints, enums, global variables) we use the CONCATENATE
> macro.
> In this way the file is much easier to maintain while keeping the same
> generality.
> Functions depending on the monitor types are now conditionally compiled
> according to the value of RV_MON_TYPE, which must be defined in the
> monitor source.
> The monitor type can be specified as in the original implementation,
> although it's best to keep the default implementation (unsigned char) as
> not all parts of code support larger data types, and likely there's no
> need.
>
> We keep the empty macro definitions to ease review of this change with
> diff tools, but cleanup is required.
>
> Also adapt existing monitors to keep the build working.
>
> Signed-off-by: Gabriele Monaco <gmonaco@redhat.com>

Farewell, macros. You won't be missed.

Reviewed-by: Nam Cao <namcao@linutronix.de>