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Date:   Tue, 30 Jun 2020 18:37:29 +0100
From:   Will Deacon <will@...nel.org>
To:     linux-kernel@...r.kernel.org
Cc:     Will Deacon <will@...nel.org>,
        Sami Tolvanen <samitolvanen@...gle.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Kees Cook <keescook@...omium.org>,
        Marco Elver <elver@...gle.com>,
        "Paul E. McKenney" <paulmck@...nel.org>,
        Josh Triplett <josh@...htriplett.org>,
        Matt Turner <mattst88@...il.com>,
        Ivan Kokshaysky <ink@...assic.park.msu.ru>,
        Richard Henderson <rth@...ddle.net>,
        Peter Zijlstra <peterz@...radead.org>,
        Alan Stern <stern@...land.harvard.edu>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Arnd Bergmann <arnd@...db.de>,
        Boqun Feng <boqun.feng@...il.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Mark Rutland <mark.rutland@....com>,
        linux-arm-kernel@...ts.infradead.org, linux-alpha@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, kernel-team@...roid.com
Subject: [PATCH 13/18] checkpatch: Remove checks relating to [smp_]read_barrier_depends()

The [smp_]read_barrier_depends() macros no longer exist, so we don't
need to deal with them in the checkpatch script.

Acked-by: Paul E. McKenney <paulmck@...nel.org>
Signed-off-by: Will Deacon <will@...nel.org>
---
 scripts/checkpatch.pl | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4c820607540b..8032f80c5bc7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5903,8 +5903,7 @@ sub process {
 		my $barriers = qr{
 			mb|
 			rmb|
-			wmb|
-			read_barrier_depends
+			wmb
 		}x;
 		my $barrier_stems = qr{
 			mb__before_atomic|
@@ -5953,12 +5952,6 @@ sub process {
 			}
 		}
 
-# check for smp_read_barrier_depends and read_barrier_depends
-		if (!$file && $line =~ /\b(smp_|)read_barrier_depends\s*\(/) {
-			WARN("READ_BARRIER_DEPENDS",
-			     "$1read_barrier_depends should only be used in READ_ONCE or DEC Alpha code\n" . $herecurr);
-		}
-
 # check of hardware specific defines
 		if ($line =~ m@^.\s*\#\s*if.*\b(__i386__|__powerpc64__|__sun__|__s390x__)\b@ && $realfile !~ m@...lude/asm-@) {
 			CHK("ARCH_DEFINES",
-- 
2.27.0.212.ge8ba1cc988-goog

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