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Eric Dumazet f5f80e32de ipv6: remove hard coded limitation on ipv6_pinfo 
IPv6 inet sockets are supposed to have a "struct ipv6_pinfo"
field at the end of their definition, so that inet6_sk_generic()
can derive from socket size the offset of the "struct ipv6_pinfo".

This is very fragile, and prevents adding bigger alignment
in sockets, because inet6_sk_generic() does not work
if the compiler adds padding after the ipv6_pinfo component.

We are currently working on a patch series to reorganize
TCP structures for better data locality and found issues
similar to the one fixed in commit f5d547676c
("tcp: fix tcp_inet6_sk() for 32bit kernels")

Alternative would be to force an alignment on "struct ipv6_pinfo",
greater or equal to __alignof__(any ipv6 sock) to ensure there is
no padding. This does not look great.

v2: fix typo in mptcp_proto_v6_init() (Paolo)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Chao Wu <wwchao@google.com>
Cc: Wei Wang <weiwan@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: YiFei Zhu <zhuyifei@google.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-07-24 09:39:31 +01:00
..
acpi More ACPI updates for 6.5-rc1 2023-07-06 22:25:06 -07:00
asm-generic vmlinux.lds.h: Remove a reference to no longer used sections .text..refcount 2023-07-11 14:29:43 -07:00
clocksource
crypto This update includes the following changes: 2023-06-30 21:27:13 -07:00
drm Linux 6.5-rc1 2023-07-11 09:23:20 +02:00
dt-bindings Another set of clk driver updates and fixes for the merge window. The 2023-07-04 11:07:45 -07:00
keys
kunit
kvm Common KVM changes for 6.5: 2023-07-01 07:07:55 -04:00
linux ipv6: remove hard coded limitation on ipv6_pinfo 2023-07-24 09:39:31 +01:00
math-emu
media media updates for v6.5-rc1 2023-07-05 10:42:32 -07:00
memory
misc
net ipv6: remove hard coded limitation on ipv6_pinfo 2023-07-24 09:39:31 +01:00
pcmcia
ras
rdma rdma: fix INFINIBAND_USER_ACCESS dependency 2023-07-03 16:55:04 -07:00
rv
scsi SCSI misc on 20230629 2023-06-30 11:57:07 -07:00
soc net: dsa: felix: make vsc9959_tas_guard_bands_update() visible to ocelot->ops 2023-07-06 19:10:22 -07:00
sound
target SCSI misc on 20230629 2023-06-30 11:57:07 -07:00
trace Including fixes from bluetooth, bpf and wireguard. 2023-07-05 15:44:45 -07:00
uapi net: add sysctl accept_ra_min_rtr_lft 2023-07-23 11:51:24 +01:00
ufs Merge branch '6.5/scsi-staging' into 6.5/scsi-fixes 2023-07-11 12:15:15 -04:00
vdso
video sticon/parisc: Fix STI console on 64-bit only machines 2023-06-30 17:14:14 +02:00
xen