EFI efivars.c dissection

Hi Peter,

As discussed previously, please consider pulling this into a new topic branch, to potentially merge for v3.10. The changes move all the code in drivers/firmware/efivars.c into new files under drivers/firmware/efi/ and moves the efivarfs code to fs/efivarfs. This allow us to pick and choose which EFI support to compile instead of having everything under one monolithic file. In particular, having the efivarfs code under fs/ allows building an efivarfs.ko module, which means mount(8) can automatically load it.

It also introduces the new efivar_entry API.

The following changes since commit 07961ac7c0ee8b546658717034fe692fd12eefa9:

Linux 3.9-rc5 (2013-03-31 15:12:43 -0700)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/mfleming/efi.git chainsaw

for you to fetch changes up to a9499fa7cd3fd4824a7202d00c766b269fa3bda6:

efi: split efisubsystem from efivars (2013-04-17 13:27:06 +0100)

----------------------------------------------------------------
Matt Fleming (5):
efi: move utf16 string functions to efi.h
efivars: Keep a private global pointer to efivars
efivars: efivar_entry API
efivars: Move pstore code into the new EFI directory
efivarfs: Move to fs/efivarfs

Tom Gundersen (1):
efi: split efisubsystem from efivars

 MAINTAINERS                       |   13 +-
 drivers/firmware/Kconfig          |   36 +-
 drivers/firmware/Makefile         |    2 +-
 drivers/firmware/efi/Kconfig      |   39 +
 drivers/firmware/efi/Makefile     |    6 +
 drivers/firmware/efi/efi-pstore.c |  244 +++++
 drivers/firmware/efi/efi.c        |  134 +++
 drivers/firmware/efi/efivars.c    |  617 +++++++++++
 drivers/firmware/efi/vars.c       | 1049 ++++++++++++++++++
 drivers/firmware/efivars.c        | 2171 -------------------------------------
 drivers/firmware/google/gsmi.c    |   30 +-
 fs/Kconfig                        |    1 +
 fs/Makefile                       |    1 +
 fs/efivarfs/Kconfig               |   12 +
 fs/efivarfs/Makefile              |    7 +
 fs/efivarfs/file.c                |  111 ++
 fs/efivarfs/inode.c               |  173 +++
 fs/efivarfs/internal.h            |   22 +
 fs/efivarfs/super.c               |  267 +++++
 include/linux/efi.h               |  134 ++-
 20 files changed, 2835 insertions(+), 2234 deletions(-)
 create mode 100644 drivers/firmware/efi/Kconfig
 create mode 100644 drivers/firmware/efi/Makefile
 create mode 100644 drivers/firmware/efi/efi-pstore.c
 create mode 100644 drivers/firmware/efi/efi.c
 create mode 100644 drivers/firmware/efi/efivars.c
 create mode 100644 drivers/firmware/efi/vars.c
 delete mode 100644 drivers/firmware/efivars.c
 create mode 100644 fs/efivarfs/Kconfig
 create mode 100644 fs/efivarfs/Makefile
 create mode 100644 fs/efivarfs/file.c
 create mode 100644 fs/efivarfs/inode.c
 create mode 100644 fs/efivarfs/internal.h
 create mode 100644 fs/efivarfs/super.c

Matt Fleming, Intel Open Source Technology Center