tree 9471cfda8361eff00c050c3e9148520328f06790
parent a02f84ee9c6f42137671b74ec3bb9d159b10b7ee
author Sean Anderson <seanga2@gmail.com> 1603842926 -0400
committer Tom Rini <trini@konsulko.com> 1604069726 -0400

log: Add filter flag to deny on match

Without this flag, log filters can only explicitly accept messages.
Allowing denial makes it easier to filter certain subsystems. Unlike
allow-ing filters, deny-ing filters are added to the beginning of the
filter list. This should do the Right Thing most of the time, but it's
less-universal than allowing filters to be inserted anywhere. If this
becomes a problem, then perhaps log_filter_add* should take a filter number
to insert before/after.

Signed-off-by: Sean Anderson <seanga2@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>