Re: [PATCH net v3 2/3] ipv6: ignore dst hint for multipath routes

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On 8/28/23 5:32 AM, Sriram Yagnaraman wrote:
> Route hints when the nexthop is part of a multipath group causes packets
> in the same receive batch to be sent to the same nexthop irrespective of
> the multipath hash of the packet. So, do not extract route hint for
> packets whose destination is part of a multipath group.
> 
> A new SKB flag IP6SKB_MULTIPATH is introduced for this purpose, set the
> flag when route is looked up in fib6_select_path() and use it in
> ip6_can_use_hint() to check for the existence of the flag.
> 
> Fixes: 197dbf24e360 ("ipv6: introduce and uses route look hints for list input.")
> Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@xxxxxxxx>
> ---
>  include/linux/ipv6.h | 1 +
>  net/ipv6/ip6_input.c | 3 ++-
>  net/ipv6/route.c     | 3 +++
>  3 files changed, 6 insertions(+), 1 deletion(-)
> 

Reviewed-by: David Ahern <dsahern@xxxxxxxxxx>




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