linux-kernel - [PATCH 2/2] tools/memory-model: remove ACCESS

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Message-Id: <20180628123347.52963-3-mark.rutland@arm.com>
Date:   Thu, 28 Jun 2018 13:33:47 +0100
From:   Mark Rutland <mark.rutland@....com>
To:     linux-kernel@...r.kernel.org
Cc:     akiyks@...il.com, andrea.parri@...rulasolutions.com,
        boqun.feng@...il.com, dhowells@...hat.com, j.alglave@....ac.uk,
        luc.maranget@...ia.fr, mark.rutland@....com, npiggin@...il.com,
        paulmck@...ux.vnet.ibm.com, peterz@...radead.org,
        stern@...land.harvard.edu, will.deacon@....com
Subject: [PATCH 2/2] tools/memory-model: remove ACCESS_ONCE() from model

Since commit:

  b899a850431e2dd0 ("compiler.h: Remove ACCESS_ONCE()")

... there has been no definition of ACCESS_ONCE() in the kernel tree,
and it has been necessary to use READ_ONCE() or WRITE_ONCE() instead.

Correspondingly, let's remove ACCESS_ONCE() from the kernel memory
model.

Signed-off-by: Mark Rutland <mark.rutland@....com>
Cc: Alan Stern <stern@...land.harvard.edu>
Cc: Andrea Parri <andrea.parri@...rulasolutions.com>
Cc: Will Deacon <will.deacon@....com>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Boqun Feng <boqun.feng@...il.com>
Cc: Nicholas Piggin <npiggin@...il.com>
Cc: David Howells <dhowells@...hat.com>
Cc: Jade Alglave <j.alglave@....ac.uk>
Cc: Luc Maranget <luc.maranget@...ia.fr>
Cc: Paul E. McKenney <paulmck@...ux.vnet.ibm.com>
Cc: Akira Yokosawa <akiyks@...il.com>
---
 tools/memory-model/linux-kernel.bell | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/memory-model/linux-kernel.bell b/tools/memory-model/linux-kernel.bell
index 64f5740e0e75..b84fb2f67109 100644
--- a/tools/memory-model/linux-kernel.bell
+++ b/tools/memory-model/linux-kernel.bell
@@ -13,7 +13,7 @@
 
 "Linux-kernel memory consistency model"
 
-enum Accesses = 'once (*READ_ONCE,WRITE_ONCE,ACCESS_ONCE*) ||
+enum Accesses = 'once (*READ_ONCE,WRITE_ONCE*) ||
 		'release (*smp_store_release*) ||
 		'acquire (*smp_load_acquire*) ||
 		'noreturn (* R of non-return RMW *)
-- 
2.11.0