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UPSTREAM: bpf: Fix build warning regarding missing prototypes

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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.

Change-Id: I1c00daf9ae275bc4c207ccdbad0a564ba1d8fa18
Signed-off-by: Jean-Philippe Menil <jpmenil@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200327204713.28050-1-jpmenil@gmail.com
This commit is contained in:
Jean-Philippe Menil 2020-03-27 21:47:13 +01:00 • committed by basamaryan
commit 7aad38691e
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4
net/bpf/test_run.c
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@ -114,6 +114,9 @@ out:
* architecture dependent calling conventions. 7+ can be supported in the
* 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)
{
return a + 1;
@ -149,6 +152,7 @@ int noinline bpf_modify_return_test(int a, int *b)
*b += 1;
return a + *b;
}
__diag_pop();
ALLOW_ERROR_INJECTION(bpf_modify_return_test, ERRNO);