[SRU][Focal][PULL] Focal update: v5.4.57 upstream stable release

[Kamal Mostafa]

This pull request (11 commits) includes the following Focal stable patchsets:

	Focal update: v5.4.57 upstream stable release
	https://bugs.launchpad.net/bugs/1891064

Note also that the 'stable-next' branch head contains this and all prior
pending upstream stable releases.  I recommend fetching and applying just this
reference ('stable-next') instead of each tags/focal-stable-v5.4.xx reference:

   git://kernel.ubuntu.com/ubuntu-stable/ubuntu-stable-focal.git stable-next

 -Kamal

-----

The following changes since commit b00a6daea480ddeb5df5071069c83330fef2c7c5:

  UBUNTU: upstream stable to v5.4.56 (2020-08-10 08:51:57 -0700)

are available in the Git repository at:

  git://kernel.ubuntu.com/ubuntu-stable/ubuntu-stable-focal.git tags/focal-stable-v5.4.57

for you to fetch changes up to 1317551a1fa30980a751cdb06ec29778227473fd:

  UBUNTU: upstream stable to v5.4.57 (2020-08-10 10:06:15 -0700)

----------------------------------------------------------------
Greg Kroah-Hartman (1):
      Linux 5.4.57

Grygorii Strashko (1):
      ARM: percpu.h: fix build error

Jiang Ying (1):
      ext4: fix direct I/O read error

Kamal Mostafa (1):
      UBUNTU: upstream stable to v5.4.57

Linus Torvalds (2):
      random32: remove net_rand_state from the latent entropy gcc plugin
      random32: move the pseudo-random 32-bit definitions to prandom.h

Lorenz Bauer (2):
      selftests: bpf: Fix detach from sockmap tests
      bpf: sockmap: Require attach_bpf_fd when detaching a program

Marc Zyngier (1):
      arm64: Workaround circular dependency in pointer_auth.h

Willy Tarreau (2):
      random32: update the net random state on interrupt and activity
      random: fix circular include dependency on arm64 after addition of percpu.h

 Makefile                                |  2 +-
 arch/arm/include/asm/percpu.h           |  2 +
 arch/arm64/include/asm/pointer_auth.h   |  8 +++-
 debian.master/upstream-stable           |  2 +-
 drivers/char/random.c                   |  1 +
 fs/ext4/inode.c                         |  5 +++
 include/linux/bpf.h                     | 13 +++++-
 include/linux/prandom.h                 | 78 +++++++++++++++++++++++++++++++++
 include/linux/random.h                  | 63 ++------------------------
 include/linux/skmsg.h                   | 13 ++++++
 kernel/bpf/syscall.c                    |  4 +-
 kernel/time/timer.c                     |  8 ++++
 lib/random32.c                          |  2 +-
 net/core/sock_map.c                     | 50 ++++++++++++++++++---
 tools/testing/selftests/bpf/test_maps.c | 12 ++---
 15 files changed, 185 insertions(+), 78 deletions(-)
 create mode 100644 include/linux/prandom.h