linux-arm.git - Russell King's ARM Linux kernel tree

Age	Commit message (Collapse)	Author
2024-05-06	Documentation/litmus-tests: Make cmpxchg() tests safe for klitmus	Paul E. McKenney
	The four litmus tests in Documentation/litmus-tests/atomic do not declare all of their local variables. Although this is just fine for LKMM analysis by herd7, it causes build failures when run in-kernel by klitmus. This commit therefore adjusts these tests to declare all local variables. Reported-by: Andrea Parri <parri.andrea@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Acked-by: Andrea Parri <parri.andrea@gmail.com>
2024-05-06	Documentation/litmus-tests: Demonstrate unordered failing cmpxchg	Paul E. McKenney
	This commit adds four litmus tests showing that a failing cmpxchg() operation is unordered unless followed by an smp_mb__after_atomic() operation. Suggested-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Will Deacon <will@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Nicholas Piggin <npiggin@gmail.com> Cc: David Howells <dhowells@redhat.com> Cc: Jade Alglave <j.alglave@ucl.ac.uk> Cc: Luc Maranget <luc.maranget@inria.fr> Cc: "Paul E. McKenney" <paulmck@kernel.org> Cc: Akira Yokosawa <akiyks@gmail.com> Cc: Daniel Lustig <dlustig@nvidia.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: <linux-arch@vger.kernel.org> Cc: <linux-doc@vger.kernel.org> Acked-by: Andrea Parri <parri.andrea@gmail.com>