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74d00a8c38
* properly format/comment all patches * merge debloat patches * merge Kconfig patches * merge swconfig patches * merge hotplug patches * drop 200-fix_localversion.patch - upstream * drop 222-arm_zimage_none.patch - unused * drop 252-mv_cesa_depends.patch - no longer required * drop 410-mtd-move-forward-declaration-of-struct-mtd_info.patch - unused * drop 661-fq_codel_keep_dropped_stats.patch - outdated * drop 702-phy_add_aneg_done_function.patch - upstream * drop 840-rtc7301.patch - unused * drop 841-rtc_pt7c4338.patch - upstream * drop 921-use_preinit_as_init.patch - unused * drop spio-gpio-old and gpio-mmc - unused Signed-off-by: John Crispin <john@phrozen.org>
26 lines
716 B
Diff
26 lines
716 B
Diff
From: Felix Fietkau <nbd@nbd.name>
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Subject: kernel: add a small xfrm related performance optimization
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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net/netfilter/nf_nat_core.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
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index 5b9c884a452e..4ea363755085 100644
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--- a/net/netfilter/nf_nat_core.c
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+++ b/net/netfilter/nf_nat_core.c
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@@ -95,6 +95,9 @@ int nf_xfrm_me_harder(struct net *net, struct sk_buff *skb, unsigned int family)
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struct dst_entry *dst;
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int err;
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+ if (skb->dev && !dev_net(skb->dev)->xfrm.policy_count[XFRM_POLICY_OUT])
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+ return 0;
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+
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err = xfrm_decode_session(skb, &fl, family);
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if (err < 0)
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return err;
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--
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2.11.0
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