From 91db2592e463157d8f4755f56230fb04d0308c4e Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 27 Nov 2017 09:37:35 -0800 Subject: checkpatch: Add warnings for {smp_,}read_barrier_depends() Now that both smp_read_barrier_depends() and read_barrier_depends() are being de-emphasized, warn if any are added. Signed-off-by: Paul E. McKenney Cc: Andy Whitcroft Cc: Joe Perches [ paulmck: Skipped checking files and handled whitespace per Joe Perches. ] --- scripts/checkpatch.pl | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'scripts') diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 95cda3ecc66b..9a384bfe2bd5 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5586,6 +5586,12 @@ 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@include/asm-@) { CHK("ARCH_DEFINES", -- cgit v1.2.3