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authorEric Dumazet <edumazet@google.com>2024-03-06 13:24:26 +0300
committerJakub Kicinski <kuba@kernel.org>2024-03-08 07:48:22 +0300
commit02e24903e5a46b7a7fca44bcfe0cd6fa5b240c34 (patch)
treeedfd71bc7d022a0bc4af6570d19fa8a95e7621f1 /net/ipv4
parent4af9a0bee116e927a88da903a9244bb7d03483e3 (diff)
downloadlinux-02e24903e5a46b7a7fca44bcfe0cd6fa5b240c34.tar.xz
netlink: let core handle error cases in dump operations
After commit b5a899154aa9 ("netlink: handle EMSGSIZE errors in the core"), we can remove some code that was not 100 % correct anyway. Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Simon Horman <horms@kernel.org> Reviewed-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: David Ahern <dsahern@kernel.org> Link: https://lore.kernel.org/r/20240306102426.245689-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/devinet.c4
-rw-r--r--net/ipv4/fib_frontend.c7
2 files changed, 1 insertions, 10 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 4daa8124f247..7a437f0d4190 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -1900,8 +1900,6 @@ static int inet_dump_ifaddr(struct sk_buff *skb, struct netlink_callback *cb)
goto done;
}
done:
- if (err < 0 && likely(skb->len))
- err = skb->len;
if (fillargs.netnsid >= 0)
put_net(tgt_net);
rcu_read_unlock();
@@ -2312,8 +2310,6 @@ static int inet_netconf_dump_devconf(struct sk_buff *skb,
ctx->all_default++;
}
done:
- if (err < 0 && likely(skb->len))
- err = skb->len;
rcu_read_unlock();
return err;
}
diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index bf3a2214fe29..48741352a88a 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1026,8 +1026,6 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
goto unlock;
}
err = fib_table_dump(tb, skb, cb, &filter);
- if (err < 0 && skb->len)
- err = skb->len;
goto unlock;
}
@@ -1045,11 +1043,8 @@ static int inet_dump_fib(struct sk_buff *skb, struct netlink_callback *cb)
memset(&cb->args[2], 0, sizeof(cb->args) -
2 * sizeof(cb->args[0]));
err = fib_table_dump(tb, skb, cb, &filter);
- if (err < 0) {
- if (likely(skb->len))
- err = skb->len;
+ if (err < 0)
goto out;
- }
dumped = 1;
next:
e++;