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| author | Xin Long <lucien.xin@gmail.com> | 2023-04-19 11:16:32 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-04-21 08:19:30 +0100 |
| commit | 2ab399a931dddacdf7202cd4b49a5187154623d1 (patch) | |
| tree | 75d26d5810a8942257ebb93bf9be54c58f974a2b | |
| parent | f97278ff346a5f11c68d0ac499999d5ad06a6db2 (diff) | |
| download | lwn-2ab399a931dddacdf7202cd4b49a5187154623d1.tar.gz lwn-2ab399a931dddacdf7202cd4b49a5187154623d1.zip | |
sctp: delete the nested flexible array hmac
This patch deletes the flexible-array hmac[] from the structure
sctp_authhdr to avoid some sparse warnings:
# make C=2 CF="-Wflexible-array-nested" M=./net/sctp/
net/sctp/auth.c: note: in included file (through include/net/sctp/structs.h, include/net/sctp/sctp.h):
./include/linux/sctp.h:735:29: warning: nested flexible array
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/sctp.h | 2 | ||||
| -rw-r--r-- | net/sctp/auth.c | 2 | ||||
| -rw-r--r-- | net/sctp/sm_statefuns.c | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/sctp.h b/include/linux/sctp.h index 01a0eb7e9fa1..d182e8c41985 100644 --- a/include/linux/sctp.h +++ b/include/linux/sctp.h @@ -727,7 +727,7 @@ struct sctp_addip_chunk { struct sctp_authhdr { __be16 shkey_id; __be16 hmac_id; - __u8 hmac[]; + /* __u8 hmac[]; */ }; struct sctp_auth_chunk { diff --git a/net/sctp/auth.c b/net/sctp/auth.c index 34964145514e..c58fffc86a0c 100644 --- a/net/sctp/auth.c +++ b/net/sctp/auth.c @@ -738,7 +738,7 @@ void sctp_auth_calculate_hmac(const struct sctp_association *asoc, tfm = asoc->ep->auth_hmacs[hmac_id]; - digest = auth->auth_hdr.hmac; + digest = (u8 *)(&auth->auth_hdr + 1); if (crypto_shash_setkey(tfm, &asoc_key->data[0], asoc_key->len)) goto free; diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 7b8eb735fa88..97f1155a2045 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -4391,7 +4391,7 @@ static enum sctp_ierror sctp_sf_authenticate( * 3. Compute the new digest * 4. Compare saved and new digests. */ - digest = auth_hdr->hmac; + digest = (u8 *)(auth_hdr + 1); skb_pull(chunk->skb, sig_len); save_digest = kmemdup(digest, sig_len, GFP_ATOMIC); |