Commit e9ff9d52 authored by Jean-Philippe Menil's avatar Jean-Philippe Menil Committed by Daniel Borkmann

bpf: Fix build warning regarding missing prototypes

Fix build warnings when building net/bpf/test_run.o with W=1 due
to missing prototype for bpf_fentry_test{1..6}.

Instead of declaring prototypes, turn off warnings with
__diag_{push,ignore,pop} as pointed out by Alexei.
Signed-off-by: default avatarJean-Philippe Menil <jpmenil@gmail.com>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200327204713.28050-1-jpmenil@gmail.com
parent 291cfe36
...@@ -114,6 +114,9 @@ static int bpf_test_finish(const union bpf_attr *kattr, ...@@ -114,6 +114,9 @@ static int bpf_test_finish(const union bpf_attr *kattr,
* architecture dependent calling conventions. 7+ can be supported in the * architecture dependent calling conventions. 7+ can be supported in the
* future. * future.
*/ */
__diag_push();
__diag_ignore(GCC, 8, "-Wmissing-prototypes",
"Global functions as their definitions will be in vmlinux BTF");
int noinline bpf_fentry_test1(int a) int noinline bpf_fentry_test1(int a)
{ {
return a + 1; return a + 1;
...@@ -149,6 +152,7 @@ int noinline bpf_modify_return_test(int a, int *b) ...@@ -149,6 +152,7 @@ int noinline bpf_modify_return_test(int a, int *b)
*b += 1; *b += 1;
return a + *b; return a + *b;
} }
__diag_pop();
ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO); ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO);
......
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