Evolution-X-Devices/kernel_xiaomi_mt6781
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BACKPORT: net: Make sock protocol value checks more specific

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SK_PROTOCOL_MAX is only used in two places, for DECNet and AX.25. The
limits have more to do with the those protocol definitions than they do
with the data type of sk_protocol, so remove SK_PROTOCOL_MAX and use
U8_MAX directly.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Change-Id: I3d1e12f0cd3ddb2db11a2eaad5e3a1a85c59db06
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Mat Martineau
2020-01-09 07:59:14 -08:00
committed by bengris32
parent 8a2dc00c29
commit e40c231348
2 changed files with 1 additions and 2 deletions
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1
include/net/sock.h
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@@ -463,7 +463,6 @@ struct sock {
sk_userlocks : 4,
sk_protocol : 8,
sk_type : 16;
#define SK_PROTOCOL_MAX U8_MAX
u16 sk_gso_max_segs;
u8 sk_pacing_shift;
unsigned long sk_lingertime;

2
net/ax25/af_ax25.c
View File

@@ -834,7 +834,7 @@ static int ax25_create(struct net *net, struct socket *sock, int protocol,
struct sock *sk;
ax25_cb *ax25;
if (protocol < 0 || protocol > SK_PROTOCOL_MAX)
if (protocol < 0 || protocol > U8_MAX)
return -EINVAL;
if (!net_eq(net, &init_net))