Adam Borowski reported a build-failure in 5.3 when CONFIG_NF_CONNTRACK_BRIDGE is set but CONFIG_NF_TABLES is not. It was introduced into the mainline by:
3c171f496ef5 ("netfilter: bridge: add connection tracking system")
There is also a fix in the mainline:
47e640af2e49 ("netfilter: add missing IS_ENABLED(CONFIG_NF_TABLES) check to header-file.")
I've cherry-picked it, and added the "Fixes:", "Reported-by:", "Link:" and "Cc:" tags.
Please consider applying it to 5-3-y.
Jeremy Sowden (1): netfilter: add missing IS_ENABLED(CONFIG_NF_TABLES) check to header-file.
include/net/netfilter/nf_tables.h | 4 ++++ 1 file changed, 4 insertions(+)