From: Sasha Levin <sashal@kernel.org>
To: Linus Walleij <linus.walleij@linaro.org>
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, openwrt-devel@lists.openwrt.org,
"David S . Miller" <davem@davemloft.net>,
"Eric Dumazet" <edumazet@google.com>,
"Liping Zhang" <zlpnobody@gmail.com>,
"John Youn" <johnyoun@synopsys.com>,
"Rafał Miłecki" <rafal@milecki.pl>,
"James Hughes" <james.hughes@raspberrypi.org>,
"Felix Fietkau" <nbd@nbd.name>,
"Linus Lüssing" <linus.luessing@c0d3.blue>,
"Nikolay Aleksandrov" <nikolay@cumulusnetworks.com>
Subject: Re: [PATCH 1/8 v3] bridge: multicast to unicast
Date: Sun, 17 Feb 2019 13:16:04 -0500 [thread overview]
Message-ID: <20190217181604.GF10616@sasha-vm> (raw)
In-Reply-To: <20190214132403.10687-2-linus.walleij@linaro.org>
On Thu, Feb 14, 2019 at 02:23:56PM +0100, Linus Walleij wrote:
>From: Felix Fietkau <nbd@nbd.name>
>
>commit 6db6f0eae6052b70885562e1733896647ec1d807 upstream.
>
>Implements an optional, per bridge port flag and feature to deliver
>multicast packets to any host on the according port via unicast
>individually. This is done by copying the packet per host and
>changing the multicast destination MAC to a unicast one accordingly.
>
>multicast-to-unicast works on top of the multicast snooping feature of
>the bridge. Which means unicast copies are only delivered to hosts which
>are interested in it and signalized this via IGMP/MLD reports
>previously.
>
>This feature is intended for interface types which have a more reliable
>and/or efficient way to deliver unicast packets than broadcast ones
>(e.g. wifi).
>
>However, it should only be enabled on interfaces where no IGMPv2/MLDv1
>report suppression takes place. This feature is disabled by default.
>
>The initial patch and idea is from Felix Fietkau.
>
>Signed-off-by: Felix Fietkau <nbd@nbd.name>
>[linus.luessing@c0d3.blue: various bug + style fixes, commit message]
>Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
>Reviewed-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
>Signed-off-by: David S. Miller <davem@davemloft.net>
>Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This looks like a new feature rather than a fix, why does it need to go
to -stable?
--
Thanks,
Sasha
next prev parent reply other threads:[~2019-02-17 18:16 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-14 13:23 [PATCH 0/8 v3] Stable material from OpenWrt for v4.9.y Linus Walleij
2019-02-14 13:23 ` [PATCH 1/8 v3] bridge: multicast to unicast Linus Walleij
2019-02-17 18:16 ` Sasha Levin [this message]
2019-02-17 21:08 ` Linus Walleij
2019-02-14 13:23 ` [PATCH 2/8 v3] smsc95xx: Use skb_cow_head to deal with cloned skbs Linus Walleij
2019-02-14 13:23 ` [PATCH 3/8 v3] ch9200: use skb_cow_head() " Linus Walleij
2019-02-14 13:23 ` [PATCH 4/8 v3] kaweth: " Linus Walleij
2019-02-14 13:24 ` [PATCH 5/8 v3] ubifs: Drop softlimit and delta fields from struct ubifs_wbuf Linus Walleij
2019-02-17 18:16 ` Sasha Levin
2019-02-17 20:57 ` Linus Walleij
2019-02-14 13:24 ` [PATCH 6/8 v3] ubifs: Use dirty_writeback_interval value for wbuf timer Linus Walleij
2019-02-17 18:18 ` Sasha Levin
2019-02-17 18:49 ` Richard Weinberger
2019-02-17 20:56 ` Linus Walleij
2019-02-14 13:24 ` [PATCH 7/8 v3] usb: dwc2: Remove unnecessary kfree Linus Walleij
2019-02-14 13:24 ` [PATCH 8/8 v3] netfilter: nf_tables: fix mismatch in big-endian system Linus Walleij
2019-02-18 12:45 ` [PATCH 0/8 v3] Stable material from OpenWrt for v4.9.y Greg Kroah-Hartman
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