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[1/2] selftests/net: suppress clang's "variable-sized type not at the end" warning

Message ID 20240505222639.70317-1-jhubbard@nvidia.com (mailing list archive)
State New
Headers show
Series [1/2] selftests/net: suppress clang's "variable-sized type not at the end" warning | expand

Commit Message

John Hubbard May 5, 2024, 10:26 p.m. UTC 
When building with clang, via:

    make LLVM=1 -C tools/testing/selftest

...clang warns that "a variable sized type not at the end of a struct or
class is a GNU extension".

These cases are not easily changed, because they involve structs that
are part of the API. Fortunately, however, the tests seem to be doing
just fine (specifically, neither affected test runs any differently with
gcc vs. clang builds, on my test system) regardless of the warning. So,
all the warning is doing is preventing a clean build of selftests/net.

Fix this by suppressing this particular clang warning for the
selftests/net suite.

Signed-off-by: John Hubbard <jhubbard@nvidia.com>
---
 tools/testing/selftests/net/Makefile | 4 ++++
 1 file changed, 4 insertions(+)


base-commit: f462ae0edd3703edd6f22fe41d336369c38b884b
prerequisite-patch-id: b901ece2a5b78503e2fb5480f20e304d36a0ea27
diff mbox series

Patch

diff --git a/tools/testing/selftests/net/Makefile b/tools/testing/selftests/net/Makefile
index 7b6918d5f4af..956481174783 100644
--- a/tools/testing/selftests/net/Makefile
+++ b/tools/testing/selftests/net/Makefile
@@ -6,6 +6,10 @@  CFLAGS += -I../../../../usr/include/ $(KHDR_INCLUDES)
 # Additional include paths needed by kselftest.h
 CFLAGS += -I../
 
+ifneq ($(LLVM),)
+    CFLAGS += -Wno-gnu-variable-sized-type-not-at-end
+endif
+
 TEST_PROGS := run_netsocktests run_afpackettests test_bpf.sh netdevice.sh \
 	      rtnetlink.sh xfrm_policy.sh test_blackhole_dev.sh
 TEST_PROGS += fib_tests.sh fib-onlink-tests.sh pmtu.sh udpgso.sh ip_defrag.sh