[SRU][F][PATCH 1/1] Fix boot test warning for log_check

[Roxana Nicolescu]

BugLink: https://bugs.launchpad.net/bugs/2031022

SRU Justification

[Impact]

Gather Data Sampling, affecting Intel processors and assigned CVE-2022-40982
introduced this warning.The fix is on microcode, but part of the mitigation on
the kernel side is to detect if the microcode update is not there and disable
AVX in case it's supported. This needed some reshuffle during initialization so
that turning off AVX was possible without it being too late, which also moved
the FPU initialization. See commit
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.4.252&id=6e60443668978131a442df485db3deccb31d5651

This causes the following warning during boot:
CPU: 0 PID: 0 at arch/x86/kernel/fpu/xstate.c:878 get_xsave_addr+0x98/0xb0

[Fix]
This commit seems to fix the warning
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v4.14.321&id=b3607269ff57

[Test plan]
Booted locally and no warning shown.

[Regression potentials]
We may see issue during FPU init.

Thomas Gleixner (1):
  x86/pkeys: Revert a5eff7259790 ("x86/pkeys: Add PKRU value to init_fpstate")

 arch/x86/kernel/cpu/common.c | 5 -----
 arch/x86/mm/pkeys.c          | 6 ------
 2 files changed, 11 deletions(-)

-- 
2.34.1