Re: [PATCH 0/6] security/keys/encrypted: Break module dependency chain

On Tue, 2019-03-19 at 14:01 -0700, Dan Williams wrote: > On Mon, Mar 18, 2019 at 11:18 PM Dan Williams <dan.j.williams(a)intel.c > om> wrote: > > > > With v5.1-rc1 all the nvdimm sub-system regression tests started > > failing because the libnvdimm module failed to load in the qemu-kvm > > test environment. Critically that environment does not have a TPM. > > Commit 240730437deb "KEYS: trusted: explicitly use tpm_chip > > structure..." started to require a TPM to be present for the > > trusted.ko module to load where there was no requirement for that > > before. > > > > Rather than undo the "fail if no hardware" behavior James points > > out that the module dependencies can be broken by looking up the > > key-type by name. Remove the dependencies on the "key_type_trusted" > > and "key_type_encrypted" symbol exports, and clean up other > > boilerplate that supported those exports in different > > configurations. > > Any feedback? Was hoping to get at least patch1 in the queue for > v5.1-rc2 since this effectively disables the nvdimm driver on typical > configurations. Jarkko, would you be willing to merge it since the > regression came through your tree? The reason I sent out the RFC was to see if the people who actually wrote the code had any reasons they needed the current way of doing things preserving.

I think your series looks fine except you need to export key_type_lookup (patch 2) before you use it (patch 1) to preserve bisectability of builds. James