I can confirm that west-chamber=20100405+svn20111107.r124-8ubuntu0.1 can be installed and compiled with the latest 4.15 and 5.4 kernels in bionic:
$ dkms status west-chamber, 20100405+svn20111107.r124, 4.15.0-137-generic, x86_64: installed west-chamber, 20100405+svn20111107.r124, 5.4.0-67-generic, x86_64: installed xtables-addons, 3.0, 4.15.0-137-generic, x86_64: installed xtables-addons, 3.0, 5.4.0-67-generic, x86_64: installed
The autopkgtests were also successful:
bionic/linux amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/w/west-chamber/20210311_104034_5e19d@/log.gz
bionic/linux-hwe-5.4 amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/w/west-chamber/20210311_104313_48486@/log.gz
I can confirm that west-chamber= 20100405+ svn20111107. r124-8ubuntu0. 1 can be installed and compiled with the latest 4.15 and 5.4 kernels in bionic:
$ dkms status svn20111107. r124, 4.15.0-137-generic, x86_64: installed svn20111107. r124, 5.4.0-67-generic, x86_64: installed
west-chamber, 20100405+
west-chamber, 20100405+
xtables-addons, 3.0, 4.15.0-137-generic, x86_64: installed
xtables-addons, 3.0, 5.4.0-67-generic, x86_64: installed
The autopkgtests were also successful:
bionic/linux amd64: https:/ /objectstorage. prodstack4- 5.canonical. com/v1/ AUTH_77e2ada1e7 a84929a74ba3b87 153c0ac/ autopkgtest- bionic/ bionic/ amd64/w/ west-chamber/ 20210311_ 104034_ 5e19d@/ log.gz
bionic/ linux-hwe- 5.4 amd64: https:/ /objectstorage. prodstack4- 5.canonical. com/v1/ AUTH_77e2ada1e7 a84929a74ba3b87 153c0ac/ autopkgtest- bionic/ bionic/ amd64/w/ west-chamber/ 20210311_ 104313_ 48486@/ log.gz