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| author | Mark Johnston <markj@FreeBSD.org> | 2021-11-24 18:20:09 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2021-11-24 18:31:16 +0000 |
| commit | 44775b163bfa902ea96658343e852062e2e67a8e (patch) | |
| tree | 5d72f873ce281a370d0fc618eccea7f139ffdbf1 /sys/netinet | |
| parent | 0d9c3423f59bb305301f5a5bc7c8f5daf7b7aa52 (diff) | |
| download | src-44775b163bfa902ea96658343e852062e2e67a8e.tar.gz src-44775b163bfa902ea96658343e852062e2e67a8e.zip | |
netinet: Remove unneeded mb_unmapped_to_ext() calls
in_cksum_skip() now handles unmapped mbufs on platforms where they're
permitted.
Reviewed by: glebius, jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33097
Diffstat (limited to 'sys/netinet')
| -rw-r--r-- | sys/netinet/ip_divert.c | 6 | ||||
| -rw-r--r-- | sys/netinet/ip_output.c | 21 |
2 files changed, 6 insertions, 21 deletions
diff --git a/sys/netinet/ip_divert.c b/sys/netinet/ip_divert.c index fb4eba220703..265fc1918d82 100644 --- a/sys/netinet/ip_divert.c +++ b/sys/netinet/ip_divert.c @@ -212,9 +212,6 @@ divert_packet(struct mbuf *m, bool incoming) /* Delayed checksums are currently not compatible with divert. */ if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA) { - m = mb_unmapped_to_ext(m); - if (m == NULL) - return; in_delayed_cksum(m); m->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA; } @@ -226,9 +223,6 @@ divert_packet(struct mbuf *m, bool incoming) #endif #ifdef INET6 if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA_IPV6) { - m = mb_unmapped_to_ext(m); - if (m == NULL) - return; in6_delayed_cksum(m, m->m_pkthdr.len - sizeof(struct ip6_hdr), sizeof(struct ip6_hdr)); m->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA_IPV6; diff --git a/sys/netinet/ip_output.c b/sys/netinet/ip_output.c index cfa6b1919a06..e30339f8c4aa 100644 --- a/sys/netinet/ip_output.c +++ b/sys/netinet/ip_output.c @@ -733,23 +733,20 @@ sendit: } } - m->m_pkthdr.csum_flags |= CSUM_IP; - if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA & ~ifp->if_hwassist) { + /* Ensure the packet data is mapped if the interface requires it. */ + if ((ifp->if_capenable & IFCAP_MEXTPG) == 0) { m = mb_unmapped_to_ext(m); if (m == NULL) { IPSTAT_INC(ips_odropped); error = ENOBUFS; goto bad; } + } + + m->m_pkthdr.csum_flags |= CSUM_IP; + if (m->m_pkthdr.csum_flags & CSUM_DELAY_DATA & ~ifp->if_hwassist) { in_delayed_cksum(m); m->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA; - } else if ((ifp->if_capenable & IFCAP_MEXTPG) == 0) { - m = mb_unmapped_to_ext(m); - if (m == NULL) { - IPSTAT_INC(ips_odropped); - error = ENOBUFS; - goto bad; - } } #if defined(SCTP) || defined(SCTP_SUPPORT) if (m->m_pkthdr.csum_flags & CSUM_SCTP & ~ifp->if_hwassist) { @@ -894,12 +891,6 @@ ip_fragment(struct ip *ip, struct mbuf **m_frag, int mtu, * fragmented packets, then do it here. */ if (m0->m_pkthdr.csum_flags & CSUM_DELAY_DATA) { - m0 = mb_unmapped_to_ext(m0); - if (m0 == NULL) { - error = ENOBUFS; - IPSTAT_INC(ips_odropped); - goto done; - } in_delayed_cksum(m0); m0->m_pkthdr.csum_flags &= ~CSUM_DELAY_DATA; } |