Re: [PATCH v7 01/10] counter: Introduce the Generic Counter interface

[Andrew Morton]

On Thu, 21 Jun 2018 17:07:08 -0400 William Breathitt Gray <vilhelm.gray@xxxxxxxxx> wrote:

> This patch introduces the Generic Counter interface for supporting
> counter devices.
> 

+EXPORT_SYMBOL(count_direction_str);
+EXPORT_SYMBOL(count_mode_str);
+EXPORT_SYMBOL(counter_signal_enum_read);
+EXPORT_SYMBOL(counter_signal_enum_write);
+EXPORT_SYMBOL(counter_signal_enum_available_read);
+EXPORT_SYMBOL(counter_count_enum_read);
+EXPORT_SYMBOL(counter_count_enum_write);
+EXPORT_SYMBOL(counter_count_enum_available_read);
+EXPORT_SYMBOL(counter_device_enum_read);
+EXPORT_SYMBOL(counter_device_enum_write);
+EXPORT_SYMBOL(counter_device_enum_available_read);
+EXPORT_SYMBOL(signal_read_value_set);
+EXPORT_SYMBOL(count_read_value_set);
+EXPORT_SYMBOL(count_write_value_get);
+EXPORT_SYMBOL(counter_register);
+EXPORT_SYMBOL(counter_unregister);
+EXPORT_SYMBOL(devm_counter_register);
+EXPORT_SYMBOL(devm_counter_unregister);

The naming is a bit chaotic.  Most of the symbols start with counter_,
which is good.  But a handful do not.

Also, symbols called signal_* make my head spin - Linux already has a
firmly ingrained notion of what a signal is, and this ain't it ;)
Although the kernel tends to use sig_ for signals-as-an-IPC-thing.

Also, many many drivers deal with signals-as-an-electrical-thing - is
it appropriate for this particular driver to take that namespace?