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Message-ID: <20180403032714.GJ7561@sasha-vm> Date: Tue, 3 Apr 2018 03:27:16 +0000 From: Sasha Levin <Alexander.Levin@...rosoft.com> To: Ido Schimmel <idosch@...lanox.com> CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "stable@...r.kernel.org" <stable@...r.kernel.org>, "David S . Miller" <davem@...emloft.net> Subject: Re: [PATCH AUTOSEL for 4.15 058/124] ipv6: Set nexthop flags during route creation On Mon, Mar 19, 2018 at 08:04:34PM +0200, Ido Schimmel wrote: >On Mon, Mar 19, 2018 at 03:48:00PM +0000, Sasha Levin wrote: >> From: Ido Schimmel <idosch@...lanox.com> >> >> [ Upstream commit 5609b80a37f69f796548339e675256188b29c17d ] >> >> It is valid to install routes with a nexthop device that does not have a >> carrier, so we need to make sure they're marked accordingly. >> >> As explained in the previous patch, host and anycast routes are never >> marked with the 'linkdown' flag. >> >> Note that reject routes are unaffected, as these use the loopback device >> which always has a carrier. >> >> Signed-off-by: Ido Schimmel <idosch@...lanox.com> >> Acked-by: David Ahern <dsahern@...il.com> >> Signed-off-by: David S. Miller <davem@...emloft.net> >> Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com> > >Hi Sasha, > >It doesn't really make sense to take this patch to 4.15 (and 4.14 from >your other mail). The flag is never used there. > >In these kernels the flag is dumped to user space based on a carrier >check. See commit 44c9f2f206f8 ("ipv6: Check nexthop flags in route dump >instead of carrier"). > >Similarly, during route lookup the carrier is checked and not the flag. >See commit 14c5206c2d02 ("ipv6: Check nexthop flags during route lookup >instead of carrier"). > >Thanks Now removed, thanks!
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