From: Eric Dumazet <edumazet@google.com>
Date: Mon, 9 Nov 2020 23:13:48 +0000 (-0800)
Subject: inet: constify inet_sdif() argument
X-Git-Tag: microblaze-v5.12~172^2~290^2~1
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=d6bb2d1e86903d3fbf895752ac2c0c2465534579;p=linux-2.6-microblaze.git

inet: constify inet_sdif() argument

inet_sdif() does not modify the skb.

This will permit propagating the const qualifier in
udp{4|6}_lib_lookup_skb() functions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Alexander Lobakin <alobakin@pm.me>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---

diff --git a/include/net/ip.h b/include/net/ip.h
index 2d6b985d11cc..e20874059f82 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -99,7 +99,7 @@ static inline void ipcm_init_sk(struct ipcm_cookie *ipcm,
 #define PKTINFO_SKB_CB(skb) ((struct in_pktinfo *)((skb)->cb))
 
 /* return enslaved device index if relevant */
-static inline int inet_sdif(struct sk_buff *skb)
+static inline int inet_sdif(const struct sk_buff *skb)
 {
 #if IS_ENABLED(CONFIG_NET_L3_MASTER_DEV)
 	if (skb && ipv4_l3mdev_skb(IPCB(skb)->flags))