[PATCH 6/6] devtools: forbid new direct use of GCC atomic builtins

[Tyler Retzlaff]

Refrain from using compiler __atomic_xxx builtins DPDK now requires
the use of rte_atomic_<op>_explicit macros when operating on DPDK
atomic variables.

Signed-off-by: Tyler Retzlaff <roret...@linux.microsoft.com>
Acked-by: Morten Brørup <m...@smartsharesystems.com>
---
 devtools/checkpatches.sh | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/devtools/checkpatches.sh b/devtools/checkpatches.sh
index 43f5e36..a32f02e 100755
--- a/devtools/checkpatches.sh
+++ b/devtools/checkpatches.sh
@@ -102,6 +102,14 @@ check_forbidden_additions() { # <patch>
                -f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
                "$1" || res=1
 
+       # refrain from using compiler __atomic_xxx builtins
+       awk -v FOLDERS="lib drivers app examples" \
+               -v EXPRESSIONS="__atomic_.*\\\(" \
+               -v RET_ON_FAIL=1 \
+               -v MESSAGE='Using __atomic_xxx builtins' \
+               -f $(dirname $(readlink -f $0))/check-forbidden-tokens.awk \
+               "$1" || res=1
+
        # refrain from using compiler __atomic_thread_fence()
        # It should be avoided on x86 for SMP case.
        awk -v FOLDERS="lib drivers app examples" \
-- 
1.8.3.1