+++ This bug was initially created as a clone of Bug #266710 +++ The aforementioned bug was closed, but I don't think it's resolved. Attempting to emerge openafs-kernel against vanilla-sources-2.6.30, the build fails: ... LD [M] /var/tmp/portage/net-fs/openafs-kernel-1.4.10/work/openafs-1.4.10/src/libafs/MODLOAD-2.6.29-gentoo-r1-mikeyd-MP/libafs.o Building modules, stage 2. MODPOST 1 modules FATAL: modpost: GPL-incompatible module libafs.ko uses GPL-only symbol '__rcu_read_unlock' make[6]: *** [__modpost] Error 1 ... Reproducible: Always Steps to Reproduce:
*** This bug has been marked as a duplicate of bug 274353 ***