[GIT PULL] pstore updates for v4.21-rc1

[Kees Cook]

Hi Linus,

Please pull these pstore changes for v4.21-rc1.

Thanks!

-Kees

The following changes since commit ccda4af0f4b92f7b4c308d3acc262f4a7e3affad:

  Linux 4.20-rc2 (2018-11-11 17:12:31 -0600)

are available in the Git repository at:

  https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git tags/pstore-v4.21-rc1

for you to fetch changes up to 8665569e97dd52920713b95675409648986b5b0d:

  pstore/ram: Avoid NULL deref in ftrace merging failure path (2018-12-03 17:11:02 -0800)

----------------------------------------------------------------
pstore improvements and refactorings

- Improve compression handling
- Refactor argument handling during initialization
- Avoid needless locking for saner EFI backend handling
- Add more kern-doc and improve debugging output

----------------------------------------------------------------
Joel Fernandes (Google) (3):
      pstore: Map PSTORE_TYPE_* to strings
      pstore/ram: Simplify ramoops_get_next_prz() arguments
      pstore/ram: Do not treat empty buffers as valid

Kees Cook (11):
      pstore/ram: Correctly calculate usable PRZ bytes
      Merge branch 'for-linus/pstore' into for-next/pstore
      pstore: Do not use crash buffer for decompression
      pstore: Remove needless lock during console writes
      pstore/ram: Standardize module name in ramoops
      pstore/ram: Report backend assignments with finer granularity
      pstore/ram: Add kern-doc for struct persistent_ram_zone
      pstore: Improve and update some comments and status output
      pstore: Replace open-coded << with BIT()
      pstore: Convert buf_lock to semaphore
      pstore/ram: Avoid NULL deref in ftrace merging failure path

Peng Wang (1):
      pstore: Avoid duplicate call of persistent_ram_zap()

Thomas Meyer (1):
      pstore: Fix bool initialization/comparison

 arch/powerpc/kernel/nvram_64.c    |   2 -
 drivers/acpi/apei/erst.c          |   3 +-
 drivers/firmware/efi/efi-pstore.c |   4 +-
 fs/pstore/ftrace.c                |   2 +-
 fs/pstore/inode.c                 |  51 +----------
 fs/pstore/platform.c              | 173 +++++++++++++++++++++-----------------
 fs/pstore/ram.c                   |  78 +++++++----------
 fs/pstore/ram_core.c              |  45 ++++++++--
 include/linux/pstore.h            |  39 ++++++---
 include/linux/pstore_ram.h        |  50 ++++++++++-
 10 files changed, 241 insertions(+), 206 deletions(-)

-- 
Kees Cook