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fou: remove sparse errors

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[ Upstream commit 8d65cd8d25fa23951171094553901d69a88ccdff ]

We need to add __rcu qualifier to avoid these errors:

net/ipv4/fou.c:250:18: warning: incorrect type in assignment (different address spaces)
net/ipv4/fou.c:250:18:    expected struct net_offload const **offloads
net/ipv4/fou.c:250:18:    got struct net_offload const [noderef] __rcu **
net/ipv4/fou.c:251:15: error: incompatible types in comparison expression (different address spaces):
net/ipv4/fou.c:251:15:    struct net_offload const [noderef] __rcu *
net/ipv4/fou.c:251:15:    struct net_offload const *
net/ipv4/fou.c:272:18: warning: incorrect type in assignment (different address spaces)
net/ipv4/fou.c:272:18:    expected struct net_offload const **offloads
net/ipv4/fou.c:272:18:    got struct net_offload const [noderef] __rcu **
net/ipv4/fou.c:273:15: error: incompatible types in comparison expression (different address spaces):
net/ipv4/fou.c:273:15:    struct net_offload const [noderef] __rcu *
net/ipv4/fou.c:273:15:    struct net_offload const *
net/ipv4/fou.c:442:18: warning: incorrect type in assignment (different address spaces)
net/ipv4/fou.c:442:18:    expected struct net_offload const **offloads
net/ipv4/fou.c:442:18:    got struct net_offload const [noderef] __rcu **
net/ipv4/fou.c:443:15: error: incompatible types in comparison expression (different address spaces):
net/ipv4/fou.c:443:15:    struct net_offload const [noderef] __rcu *
net/ipv4/fou.c:443:15:    struct net_offload const *
net/ipv4/fou.c:489:18: warning: incorrect type in assignment (different address spaces)
net/ipv4/fou.c:489:18:    expected struct net_offload const **offloads
net/ipv4/fou.c:489:18:    got struct net_offload const [noderef] __rcu **
net/ipv4/fou.c:490:15: error: incompatible types in comparison expression (different address spaces):
net/ipv4/fou.c:490:15:    struct net_offload const [noderef] __rcu *
net/ipv4/fou.c:490:15:    struct net_offload const *
net/ipv4/udp_offload.c:170:26: warning: incorrect type in assignment (different address spaces)
net/ipv4/udp_offload.c:170:26:    expected struct net_offload const **offloads
net/ipv4/udp_offload.c:170:26:    got struct net_offload const [noderef] __rcu **
net/ipv4/udp_offload.c:171:23: error: incompatible types in comparison expression (different address spaces):
net/ipv4/udp_offload.c:171:23:    struct net_offload const [noderef] __rcu *
net/ipv4/udp_offload.c:171:23:    struct net_offload const *

Fixes: efc98d08e1ec ("fou: eliminate IPv4,v6 specific GRO functions")
Fixes: 8bce6d7d0d1e ("udp: Generalize skb_udp_segment")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 7e4196935069 ("fou: Fix null-ptr-deref in GRO.")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eric Dumazet 2021-08-30 20:26:08 -07:00 committed by Ksawlii
parent 831b755d5b
commit 7630695a39
2 changed files with 6 additions and 6 deletions
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10
net/ipv4/fou.c
View file

@ -230,8 +230,8 @@ static struct sk_buff *fou_gro_receive(struct sock *sk,
struct list_head *head,
struct sk_buff *skb)
{
const struct net_offload __rcu **offloads;
u8 proto = fou_from_sock(sk)->protocol;
const struct net_offload **offloads;
const struct net_offload *ops;
struct sk_buff *pp = NULL;
@ -263,10 +263,10 @@ out_unlock:
static int fou_gro_complete(struct sock *sk, struct sk_buff *skb,
int nhoff)
{
const struct net_offload *ops;
const struct net_offload __rcu **offloads;
u8 proto = fou_from_sock(sk)->protocol;
const struct net_offload *ops;
int err = -ENOSYS;
const struct net_offload **offloads;
rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
@ -311,7 +311,7 @@ static struct sk_buff *gue_gro_receive(struct sock *sk,
struct list_head *head,
struct sk_buff *skb)
{
const struct net_offload **offloads;
const struct net_offload __rcu **offloads;
const struct net_offload *ops;
struct sk_buff *pp = NULL;
struct sk_buff *p;
@ -457,8 +457,8 @@ out:
static int gue_gro_complete(struct sock *sk, struct sk_buff *skb, int nhoff)
{
const struct net_offload **offloads;
struct guehdr *guehdr = (struct guehdr *)(skb->data + nhoff);
const struct net_offload __rcu **offloads;
const struct net_offload *ops;
unsigned int guehlen = 0;
u8 proto;

2
net/ipv4/udp_offload.c
View file

@ -149,8 +149,8 @@ struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
netdev_features_t features,
bool is_ipv6)
{
const struct net_offload __rcu **offloads;
__be16 protocol = skb->protocol;
const struct net_offload **offloads;
const struct net_offload *ops;
struct sk_buff *segs = ERR_PTR(-EINVAL);
struct sk_buff *(*gso_inner_segment)(struct sk_buff *skb,