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From 4016a069c65756374c38e3fd80805c247d1255b0 Mon Sep 17 00:00:00 2001
From: ABC <abc@openwall.com>
Date: Wed, 20 Apr 2022 22:26:35 +0300
Subject: [PATCH 08/17] gen_compat_def: Catch 'dereferencing pointer to
incomplete type'
If `CONFIG_NF_CONNTRACK_EVENTS` is undeclared following test produce build error:
Test member nf_ct_event_notifier.ct_event net/netfilter/nf_conntrack_ecache.h undeclared
Error: unexpected error from compiler
make -s -B M=cc-test-build modules
cc-test-build/test.c:4:41: error: dereferencing pointer to incomplete type 'struct nf_ct_event_notifier'
typeof(((struct nf_ct_event_notifier*)0)->ct_event) test;
^~
scripts/Makefile.build:288: recipe for target 'cc-test-build/test.o' failed
Treat this error as just a negative test case.
---
gen_compat_def | 1 +
1 file changed, 1 insertion(+)
diff --git a/gen_compat_def b/gen_compat_def
index 35803a2..396fdb9 100755
--- a/gen_compat_def
+++ b/gen_compat_def
@@ -49,6 +49,7 @@ kbuild_test_compile() {
-e 'No such file or directory' \
-e 'incompatible types when initializing' \
-e 'initializer element is not constant' \
+ -e 'dereferencing pointer to incomplete type' \
log; then
echo "Error: unexpected error from compiler" >&2
cat log >&2
--
2.39.5
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