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Date:   Sun, 17 Oct 2021 12:01:33 +0200
From:   Borislav Petkov <>
To:     Linus Torvalds <>
Cc:     linux-efi <>, x86-ml <>,
        lkml <>
Subject: [GIT PULL] efi/urgent for v5.15-rc6

Hi Linus,

please pull (forwarded) EFI urgent fixes for 5.15.

This is going to be the one before last EFI pull request going through
the tip tree and Ard will send stuff directly to you in the future.

 [ There's one more branch which we'll send to you during the upcoming
   merge window which should be the last one. ]

The reasoning being, EFI work doesn't really have a lot to do (only)
with x86 anymore.

Anyway, JFYI.

Please pull,


The following changes since commit 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f:

  Linux 5.15-rc1 (2021-09-12 16:28:37 -0700)

are available in the Git repository at:

  git:// tags/efi-urgent-for-v5.15

for you to fetch changes up to 38fa3206bf441911258e5001ac8b6738693f8d82:

  efi: Change down_interruptible() in virt_efi_reset_system() to down_trylock() (2021-10-05 13:07:01 +0200)

EFI fixes for v5.15

Low priority fixes but fixes nonetheless:
- update stub diagnostic print that is no longer accurate
- avoid statically allocated buffer for CPER error record decoding
- avoid sleeping on the efi_runtime semaphore when calling the
  ResetSystem EFI runtime service

Ard Biesheuvel (1):
      efi/cper: use stack buffer for error record decoding

Heinrich Schuchardt (1):
      efi/libstub: Simplify "Exiting bootservices" message

Zhang Jianhua (1):
      efi: Change down_interruptible() in virt_efi_reset_system() to down_trylock()

 drivers/firmware/efi/cper.c             | 4 ++--
 drivers/firmware/efi/libstub/fdt.c      | 2 +-
 drivers/firmware/efi/runtime-wrappers.c | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)


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