[PATCH v2 0/8] fix gcc9 build with -Werror=address-of-packed-member

[Michael Chang]

This patch set attempts to resolve the build failure in openSUSE build
service equipped with new gcc 9 compiler, which has added a new warning
flag -Waddress-of-packed-member.

The new warning performs the check for taking the address of packed
member directly to a pointer variable with higher alignment requirement
and the outcome is risky to memory alignment fault on some architecture
when deferencing it.

Please help to review.

Thanks.

v2: Disable -Werror=address-of-packed-member if its diagnose turns out
to be false positive.

Michael Chang (8):
  cpio: disable gcc9 -Waddress-of-packed-member
  jfs: disable gcc9 -Waddress-of-packed-member
  hfs: fix gcc9 error -Waddress-of-packed-member
  hfsplus: fix gcc9 error with -Waddress-of-packed-member
  acpi: fix gcc9 error -Waddress-of-packed-member
  usbtest: disable gcc9 -Waddress-of-packed-member
  chainloader: fix gcc9 error -Waddress-of-packed-member
  efi: fix gcc9 error -Waddress-of-packed-member

 grub-core/commands/usbtest.c       |  9 ++++++
 grub-core/fs/cpio_common.c         |  9 ++++++
 grub-core/fs/hfsplus.c             | 57 ++++++++++++++++++++++++++------------
 grub-core/fs/jfs.c                 |  7 +++++
 grub-core/kern/efi/efi.c           | 27 ++++++++++++++++--
 grub-core/loader/efi/chainloader.c | 12 ++++++--
 include/grub/acpi.h                |  2 +-
 include/grub/hfs.h                 |  2 +-
 8 files changed, 100 insertions(+), 25 deletions(-)

-- 
2.16.4