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40 lines
1.5 KiB
Diff
40 lines
1.5 KiB
Diff
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From 2b7c5a4a57e1f5cc37877f838293173994e028c6 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Thu, 2 Jan 2020 17:47:50 +0100
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Subject: [PATCH 080/124] wireguard: queueing: do not account for pfmemalloc
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when clearing skb header
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commit 04d2ea92a18417619182cbb79063f154892b0150 upstream.
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Before 8b7008620b84 ("net: Don't copy pfmemalloc flag in __copy_skb_
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header()"), the pfmemalloc flag used to be between headers_start and
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headers_end, which is a region we clear when preparing the packet for
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encryption/decryption. This is a parameter we certainly want to
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preserve, which is why 8b7008620b84 moved it out of there. The code here
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was written in a world before 8b7008620b84, though, where we had to
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manually account for it. This commit brings things up to speed.
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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drivers/net/wireguard/queueing.h | 3 ---
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1 file changed, 3 deletions(-)
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--- a/drivers/net/wireguard/queueing.h
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+++ b/drivers/net/wireguard/queueing.h
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@@ -83,13 +83,10 @@ static inline __be16 wg_skb_examine_untr
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static inline void wg_reset_packet(struct sk_buff *skb)
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{
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- const int pfmemalloc = skb->pfmemalloc;
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-
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skb_scrub_packet(skb, true);
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memset(&skb->headers_start, 0,
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offsetof(struct sk_buff, headers_end) -
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offsetof(struct sk_buff, headers_start));
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- skb->pfmemalloc = pfmemalloc;
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skb->queue_mapping = 0;
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skb->nohdr = 0;
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skb->peeked = 0;
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