[GIT PULL] random number generator fixes for 5.17-rc3

[Jason A. Donenfeld]

Hey Linus,

Please pull the following fixes for 5.17-rc3. There are a few other patches in
my tree that fix an age old crypto ~vuln, but I think I'll give those a few
more days to stew on the list before submitting. So expect to hear from me
about that next week. For this week, we have:

1) A fix to make more frequent use of hwgenerator randomness, from Dominik.

2) More cleanups to the boot initialization sequence, from Dominik.

3) A fix for an old shortcoming with the ZAP ioctl, from me.

4) A workaround for a still unfixed Clang CFI/FullLTO compiler bug, from me.
   On one hand, it's a bummer to commit workarounds for experimental compiler
   features that have bugs. But on the other, I think this actually improves
   the code somewhat, independent of the bug. So a win-win.

Thanks,
Jason

The following changes since commit 26291c54e111ff6ba87a164d85d4a4e134b7315c:

  Linux 5.17-rc2 (2022-01-30 15:37:07 +0200)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git tags/random-5.17-rc3-for-linus

for you to fetch changes up to 9d5505f1eebeca778074a0260ed077fd85f8792c:

  random: only call crng_finalize_init() for primary_crng (2022-02-04 19:22:32 +0100)

----------------------------------------------------------------
Dominik Brodowski (3):
      random: continually use hwgenerator randomness
      random: access primary_pool directly rather than through pointer
      random: only call crng_finalize_init() for primary_crng

Jason A. Donenfeld (2):
      lib/crypto: blake2s: avoid indirect calls to compression function for Clang CFI
      random: wake up /dev/random writers after zap

 arch/arm/crypto/blake2s-shash.c   |  4 ++--
 arch/x86/crypto/blake2s-shash.c   |  4 ++--
 crypto/blake2s_generic.c          |  4 ++--
 drivers/char/random.c             | 39 +++++++++++++++++++++-----------------
 include/crypto/internal/blake2s.h | 40 ++++++++++++++++++++++++---------------
 lib/crypto/blake2s.c              |  4 ++--
 6 files changed, 55 insertions(+), 40 deletions(-)