[SRU][Jammy][PULL] Jammy update: v5.15.57 upstream stable release

[Kamal Mostafa]

This pull request (7 commits) includes the following Jammy stable patchsets:

	Jammy update: v5.15.57 upstream stable release
	https://bugs.launchpad.net/bugs/1988353

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/jammy-stable-v5.15.xx reference:

   git://git.launchpad.net/~ubuntu-kernel-stable/+git/jammy stable-next

 -Kamal

-----

The following changes since commit d1e9e0824a19cb2ea4dec5ad9f0e3e51bef4fe5c:

  UBUNTU: Upstream stable to v5.15.56 (2022-08-31 11:42:48 -0700)

are available in the Git repository at:

  git://git.launchpad.net/~ubuntu-kernel-stable/+git/jammy tags/jammy-stable-v5.15.57

for you to fetch changes up to ccc62aa061ecc1afd20b7840a007b3a69e0318d2:

  UBUNTU: Upstream stable to v5.15.57 (2022-08-31 14:30:47 -0700)

----------------------------------------------------------------
Arnaldo Carvalho de Melo (2):
      tools arch x86: Sync the msr-index.h copy with the kernel sources
      tools headers cpufeatures: Sync with the kernel sources

Ben Hutchings (1):
      x86/xen: Fix initialisation in hypercall_page after rethunk

Greg Kroah-Hartman (1):
      Linux 5.15.57

Kamal Mostafa (1):
      UBUNTU: Upstream stable to v5.15.57

Peter Zijlstra (2):
      um: Add missing apply_returns()
      x86: Use -mindirect-branch-cs-prefix for RETPOLINE builds

 Makefile                                       |  3 ++-
 arch/um/kernel/um_arch.c                       |  4 ++++
 arch/x86/xen/xen-head.S                        |  4 ++--
 debian.master/upstream-stable                  |  2 +-
 tools/arch/x86/include/asm/cpufeatures.h       | 12 ++++++++++--
 tools/arch/x86/include/asm/disabled-features.h | 21 ++++++++++++++++++++-
 tools/arch/x86/include/asm/msr-index.h         |  4 ++++
 7 files changed, 43 insertions(+), 7 deletions(-)