Re: [PATCH 4/6] fjes: Implement debug mode for fjes driver

From: Taku Izumi <redacted>
Date: Tue, 11 Oct 2016 17:55:20 +0900

This patch implements debug mode for fjes driver.
You can get firmware activity information by enabling
debug mode. This is useful for debugging.

To enable debug mode, write value of debugging mode to
debug_mode file in debugfs:

  # echo 1 > /sys/kernel/debug/fjes/fjes.0/debug_mode

To disable debug mode, write 0 to debug_mode file in debugfs:

  # echo 0 > /sys/kernel/debug/fjes/fjes.0/debug_mode

Firmware activity information can be retrieved via
/sys/kernel/debug/fjes/fjes.0/debug_data file.

Signed-off-by: Taku Izumi <redacted>

There is no reason to use debugfs for this, we have facilities such
as ETHTOOL_SET_DUMP et al. that you can use to implement this.