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-rwxr-xr-xscripts/checkpatch.pl6
1 files changed, 6 insertions, 0 deletions
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",