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bpf: Avoid warning when re-casting __bpf_call_base into __bpf_call_base_args

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BPF interpreter uses extra input argument, so re-casts __bpf_call_base into
__bpf_call_base_args. Avoid compiler warning about incompatible function
prototypes by casting to void * first.

Fixes: 1ea47e01ad ("bpf: add support for bpf_call to interpreter")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210112075520.4103414-3-andrii@kernel.org
This commit is contained in:
Andrii Nakryiko 2021-01-11 23:55:15 -08:00 committed by Alexei Starovoitov
parent a643bff752
commit 6943c2b05b
1 changed files with 1 additions and 1 deletions
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2
include/linux/filter.h
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@ -886,7 +886,7 @@ void sk_filter_uncharge(struct sock *sk, struct sk_filter *fp);
u64 __bpf_call_base(u64 r1, u64 r2, u64 r3, u64 r4, u64 r5);
#define __bpf_call_base_args \
((u64 (*)(u64, u64, u64, u64, u64, const struct bpf_insn *)) \
__bpf_call_base)
(void *)__bpf_call_base)
struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *prog);
void bpf_jit_compile(struct bpf_prog *prog);