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| author |   Daniel Xu <dxu@dxuuu.xyz> | 2022-09-07 10:40:38 -0600 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2022-09-10 17:27:32 -0700 |
| commit | 896f07c07da01aa7cee820a23c2bce1d8e9fe1e6 (patch) | |
| tree | 4b83688791a0467e437b4dbca9ed14466944e254 /net/ipv4 | |
| parent | bpf: Add stub for btf_struct_access() (diff) | |
| download | wireguard-linux-896f07c07da01aa7cee820a23c2bce1d8e9fe1e6.tar.xz wireguard-linux-896f07c07da01aa7cee820a23c2bce1d8e9fe1e6.zip | |
bpf: Use 0 instead of NOT_INIT for btf_struct_access() writes
Returning a bpf_reg_type only makes sense in the context of a BPF_READ.
For writes, prefer to explicitly return 0 for clarity.
Note that is non-functional change as it just so happened that NOT_INIT
== 0.
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
Link: https://lore.kernel.org/r/01772bc1455ae16600796ac78c6cc9fff34f95ff.1662568410.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'net/ipv4')
| -rw-r--r-- | net/ipv4/bpf_tcp_ca.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/bpf_tcp_ca.c b/net/ipv4/bpf_tcp_ca.c index 85a9e500c42d..6da16ae6a962 100644 --- a/net/ipv4/bpf_tcp_ca.c +++ b/net/ipv4/bpf_tcp_ca.c @@ -124,7 +124,7 @@ static int bpf_tcp_ca_btf_struct_access(struct bpf_verifier_log *log, return -EACCES; } - return NOT_INIT; + return 0; } BPF_CALL_2(bpf_tcp_send_ack, struct tcp_sock *, tp, u32, rcv_nxt) |