From f97278ff346a5f11c68d0ac499999d5ad06a6db2 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Wed, 19 Apr 2023 11:16:31 -0400 Subject: sctp: delete the nested flexible array peer_init This patch deletes the flexible-array peer_init[] from the structure sctp_cookie to avoid some sparse warnings: # make C=2 CF="-Wflexible-array-nested" M=./net/sctp/ net/sctp/sm_make_chunk.c: note: in included file (through include/net/sctp/sctp.h): ./include/net/sctp/structs.h:1588:28: warning: nested flexible array ./include/net/sctp/structs.h:343:28: warning: nested flexible array Signed-off-by: Xin Long Signed-off-by: David S. Miller --- net/sctp/associola.c | 5 +++-- net/sctp/sm_make_chunk.c | 4 ++-- net/sctp/sm_statefuns.c | 8 +++----- 3 files changed, 8 insertions(+), 9 deletions(-) (limited to 'net/sctp') diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 63ba5551c13f..796529167e8d 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -1597,9 +1597,10 @@ int sctp_assoc_set_bind_addr_from_cookie(struct sctp_association *asoc, struct sctp_cookie *cookie, gfp_t gfp) { - int var_size2 = ntohs(cookie->peer_init->chunk_hdr.length); + struct sctp_init_chunk *peer_init = (struct sctp_init_chunk *)(cookie + 1); + int var_size2 = ntohs(peer_init->chunk_hdr.length); int var_size3 = cookie->raw_addr_list_len; - __u8 *raw = (__u8 *)cookie->peer_init + var_size2; + __u8 *raw = (__u8 *)peer_init + var_size2; return sctp_raw_to_bind_addrs(&asoc->base.bind_addr, raw, var_size3, asoc->ep->base.bind_addr.port, gfp); diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index 4dbbbc2a7742..08527d882e56 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -1707,11 +1707,11 @@ static struct sctp_cookie_param *sctp_pack_cookie( ktime_get_real()); /* Copy the peer's init packet. */ - memcpy(&cookie->c.peer_init[0], init_chunk->chunk_hdr, + memcpy(cookie + 1, init_chunk->chunk_hdr, ntohs(init_chunk->chunk_hdr->length)); /* Copy the raw local address list of the association. */ - memcpy((__u8 *)&cookie->c.peer_init[0] + + memcpy((__u8 *)(cookie + 1) + ntohs(init_chunk->chunk_hdr->length), raw_addrs, addrs_len); if (sctp_sk(ep->base.sk)->hmac) { diff --git a/net/sctp/sm_statefuns.c b/net/sctp/sm_statefuns.c index 8d0cfd689b20..7b8eb735fa88 100644 --- a/net/sctp/sm_statefuns.c +++ b/net/sctp/sm_statefuns.c @@ -794,8 +794,7 @@ enum sctp_disposition sctp_sf_do_5_1D_ce(struct net *net, /* This is a brand-new association, so these are not yet side * effects--it is safe to run them here. */ - peer_init = &chunk->subh.cookie_hdr->c.peer_init[0]; - + peer_init = (struct sctp_init_chunk *)(chunk->subh.cookie_hdr + 1); if (!sctp_process_init(new_asoc, chunk, &chunk->subh.cookie_hdr->c.peer_addr, peer_init, GFP_ATOMIC)) @@ -1869,8 +1868,7 @@ static enum sctp_disposition sctp_sf_do_dupcook_a( /* new_asoc is a brand-new association, so these are not yet * side effects--it is safe to run them here. */ - peer_init = &chunk->subh.cookie_hdr->c.peer_init[0]; - + peer_init = (struct sctp_init_chunk *)(chunk->subh.cookie_hdr + 1); if (!sctp_process_init(new_asoc, chunk, sctp_source(chunk), peer_init, GFP_ATOMIC)) goto nomem; @@ -1990,7 +1988,7 @@ static enum sctp_disposition sctp_sf_do_dupcook_b( /* new_asoc is a brand-new association, so these are not yet * side effects--it is safe to run them here. */ - peer_init = &chunk->subh.cookie_hdr->c.peer_init[0]; + peer_init = (struct sctp_init_chunk *)(chunk->subh.cookie_hdr + 1); if (!sctp_process_init(new_asoc, chunk, sctp_source(chunk), peer_init, GFP_ATOMIC)) goto nomem; -- cgit