Merge tag 'kcsan.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull kcsan update from Paul McKenney:
 "Introduce __data_racy type qualifier

  This adds a __data_racy type qualifier that enables kernel developers
  to inform KCSAN that a given variable is a shared variable without
  needing to mark each and every access.

  This allows pre-KCSAN code to be correctly (if approximately)
  instrumented withh very little effort, and also provides people
  reading the code a clear indication that the variable is in fact
  shared.

  In addition, it permits incremental transition to per-access KCSAN
  marking, so that (for example) a given subsystem can be transitioned
  one variable at a time, while avoiding large numbers of KCSAN warnings
  during this transition"

* tag 'kcsan.2024.05.10a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  kcsan, compiler_types: Introduce __data_racy type qualifier