This removes support for the "shared memory communications over RDMA" (SMC-R)
networking protocol, which was added in 4.11 without the knowledge of the RDMA
maintainers, and which is thought to contain significant security flaws. For
details, see <https://lwn.net/Articles/723081> and
<https://lwn.net/Articles/723070>.
* gnu/packages/aux-files/linux-libre/4.11-x86_64.conf,
gnu/packages/aux-files/linux-libre/4.11-i686.conf: Disable CONFIG_SMC.
723# 0001-gnu-libevent-2.0-Add-fix-from-upstream.patch