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Paolo Abeni e0e3070a9b udp: properly complete L4 GRO over UDP tunnel packet
After the previous patch, the stack can do L4 UDP aggregation
on top of a UDP tunnel.

In such scenario, udp{4,6}_gro_complete will be called twice. This function
will enter its is_flist branch immediately, even though that is only
correct on the second call, as GSO_FRAGLIST is only relevant for the
inner packet.

Instead, we need to try first UDP tunnel-based aggregation, if the GRO
packet requires that.

This patch changes udp{4,6}_gro_complete to skip the frag list processing
when while encap_mark == 1, identifying processing of the outer tunnel
header.
Additionally, clears the field in udp_gro_complete() so that we can enter
the frag list path on the next round, for the inner header.

v1 -> v2:
 - hopefully clarified the commit message

Reviewed-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-03-30 17:06:49 -07:00
arch mips/sgi-ip27: Delete obsolete TODO file 2021-03-30 16:54:49 -07:00
block block: Discard page cache of zone reset target range 2021-03-11 11:49:25 -07:00
certs
crypto crypto: mips/poly1305 - enable for all MIPS processors 2021-03-08 11:52:17 +01:00
Documentation net: add sysctl for enabling RFC 8335 PROBE messages 2021-03-30 13:29:39 -07:00
drivers ppp: deflate: Remove useless call "zlib_inflateEnd" 2021-03-30 16:59:30 -07:00
fs fs/jffs2: Delete obsolete TODO file 2021-03-30 16:54:49 -07:00
include udp: fixup csum for GSO receive slow path 2021-03-30 17:06:49 -07:00
init Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
ipc
kernel sysctl: add proc_dou8vec_minmax() 2021-03-25 17:39:33 -07:00
lib Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
LICENSES
mm Merge branch 'akpm' (patches from Andrew) 2021-03-25 11:43:43 -07:00
net udp: properly complete L4 GRO over UDP tunnel packet 2021-03-30 17:06:49 -07:00
samples Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next 2021-03-25 16:30:46 -07:00
scripts Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
security Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2021-03-25 15:31:22 -07:00
sound sound fixes for 5.12-rc4 2021-03-19 09:53:32 -07:00
tools selftests: mlxsw: Test vetoing of double sampling 2021-03-29 13:37:26 -07:00
usr Kbuild updates for v5.12 2021-02-25 10:17:31 -08:00
virt KVM: x86/mmu: Consider the hva in mmu_notifier retry 2021-02-22 13:16:53 -05:00
.clang-format cxl for 5.12 2021-02-24 09:38:36 -08:00
.cocciconfig
.get_maintainer.ignore
.gitattributes
.gitignore clang-lto series for v5.12-rc1 2021-02-23 09:28:51 -08:00
.mailmap Merge branch 'akpm' (patches from Andrew) 2021-03-25 11:43:43 -07:00
COPYING
CREDITS treewide: Miguel has moved 2021-02-26 09:41:03 -08:00
Kbuild
Kconfig
MAINTAINERS MAINTAINERS: Update MCAN MMIO device driver maintainer 2021-03-30 09:31:54 +02:00
Makefile Linux 5.12-rc4 2021-03-21 14:56:43 -07:00
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Linux kernel
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