[GIT PULL] KCSAN changes for v6.4

[Paul E. McKenney]

Hello, Linus,

Once the v6.4 merge window opens, please pull the latest KCSAN git
tree from:

  git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git tags/kcsan.2023.04.04a
  # HEAD: 8dec88070d964bfeb4198f34cb5956d89dd1f557: kcsan: Avoid READ_ONCE() in read_instrumented_memory() (2023-03-11 12:28:07 -0800)

----------------------------------------------------------------
Kernel concurrency sanitizer (KCSAN) updates for v6.4

This update fixes kernel-doc warnings and also updates instrumentation
from READ_ONCE() to volatile in order to avoid unaligned load-acquire
instructions on arm64 in kernels built with LTO.

----------------------------------------------------------------
Marco Elver (1):
      kcsan: Avoid READ_ONCE() in read_instrumented_memory()

Randy Dunlap (1):
      instrumented.h: Fix all kernel-doc format warnings

 include/linux/instrumented.h | 63 ++++++++++++++++++--------------------------
 kernel/kcsan/core.c          | 17 +++++++++---
 2 files changed, 39 insertions(+), 41 deletions(-)