Various minor clean-ups and bug fixes related to mitigations.

Patches 1-3 focus on cleaning up parameter parsing.  Most mitigations use
early_param but a few older ones do not and look at boot_command_line
directly.  Modify these to be consistent with the newer ones.

Patch 4 cleans up some straggling unecessary calls to
cpu_mitigations_off().

Patches 5-7 (new in this version of the series) fix some minor bugs related
to the behavior of and reporting of certain command line options.

Note that v2 of this series included a patch for SSB attack vector controls
but this has already been merged.

Changes from v2
   - Fixed bugs pointed out by Josh on Kconfig settings
   - Added patches 5-7

Changes from v1
   - Removed spec_*_print_cond() functions
   - Fixed bugs pointed out by Pawan
   - Added last 2 patches

David Kaplan (7):
  x86/bugs: Use early_param for spectre_v2_user
  x86/bugs: Use early_param for spectre_v2
  x86/bugs: Simplify SSB cmdline parsing
  x86/bugs: Remove uses of cpu_mitigations_off()
  x86/bugs: Fix spectre_v2 forcing
  x86/bugs: Fix reporting of LFENCE retpoline
  x86/bugs: Report correct retbleed mitigation status

 arch/x86/include/asm/nospec-branch.h |   1 +
 arch/x86/kernel/cpu/bugs.c           | 403 +++++++++++----------------
 2 files changed, 168 insertions(+), 236 deletions(-)


base-commit: 584a19f9b54926dd1d3fec0a1e9b1fde801d9f23
-- 
2.34.1