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[RFC,0/2] efi: get rid of deprecated sysfs varstore interface

Message ID 20220616124740.580708-1-ardb@kernel.org (mailing list archive)
Headers show
Series efi: get rid of deprecated sysfs varstore interface | expand

Message

Ard Biesheuvel June 16, 2022, 12:47 p.m. UTC 
EFI still has two ways of exposing EFI variable to user space: the
original sysfs interface and the efivarfs pseudo-filesystem that
supersedes it, and which was introduced almost 10 years ago.

As a preparatory step towards refactoring the underlying infrastructure
shared between efivarfs and efi-pstore, I would like to finally get rid
of the sysfs interface which also uses that, but which is only enabled
on x86 and Itanium.

Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Peter Jones <pjones@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-kselftest@vger.kernel.org

Ard Biesheuvel (2):
  selftests/kexec: remove broken EFI_VARS secure boot fallback check
  efi: remove deprecated 'efivars' sysfs interface

 Documentation/x86/x86_64/uefi.rst                 |   2 +-
 arch/arm/configs/milbeaut_m10v_defconfig          |   1 -
 arch/ia64/configs/bigsur_defconfig                |   1 -
 arch/ia64/configs/generic_defconfig               |   1 -
 arch/ia64/configs/gensparse_defconfig             |   1 -
 arch/ia64/configs/tiger_defconfig                 |   1 -
 arch/ia64/configs/zx1_defconfig                   |   1 -
 arch/x86/configs/i386_defconfig                   |   1 -
 arch/x86/configs/x86_64_defconfig                 |   1 -
 drivers/firmware/efi/Kconfig                      |  12 -
 drivers/firmware/efi/Makefile                     |   1 -
 drivers/firmware/efi/efivars.c                    | 671 --------------------
 tools/testing/selftests/kexec/kexec_common_lib.sh |  36 +-
 13 files changed, 3 insertions(+), 727 deletions(-)
 delete mode 100644 drivers/firmware/efi/efivars.c