tree b43d3a931abfa4e558aca75872952402f0a8adfb
parent a37fd4d47a9482706a47c7837e717b0e21bb7574
author Simon Glass <sjg@chromium.org> 1599935327 -0600
committer Tom Rini <trini@konsulko.com> 1602363011 -0400

log: Add a flag to enable log drivers

At present there is no way to disable a log driver. But the syslog driver
causes (attempted) network traffic in sandbox every time a log message
is printed, which is often.

Add a flag to enable a log driver. Adjust struct log_device to use a short
for next_filter_num so that no more memory is used for devices. Also fix
a missing line in the struct log_driver comment while here.

To maintain compatibility, enable it for all drivers for now.

Signed-off-by: Simon Glass <sjg@chromium.org>