Re: [PATCH net] tcp: avoid bogus gcc-7 array-bounds warning

2017-07-29 Thread David Miller
From: Arnd Bergmann Date: Fri, 28 Jul 2017 16:41:37 +0200 > When using CONFIG_UBSAN_SANITIZE_ALL, the TCP code produces a > false-positive warning: > > net/ipv4/tcp_output.c: In function 'tcp_connect': > net/ipv4/tcp_output.c:2207:40: error: array subscript is below array bounds > [-Werror=arra

RE: [PATCH net] tcp: avoid bogus gcc-7 array-bounds warning

2017-07-28 Thread David Laight
From: Arnd Bergmann > Sent: 28 July 2017 15:42 ... > --- a/net/ipv4/tcp_output.c > +++ b/net/ipv4/tcp_output.c > @@ -2202,9 +2202,10 @@ static bool tcp_small_queue_check(struct sock *sk, > const struct sk_buff *skb, > static void tcp_chrono_set(struct tcp_sock *tp, const enum tcp_chrono new) > {

[PATCH net] tcp: avoid bogus gcc-7 array-bounds warning

2017-07-28 Thread Arnd Bergmann
When using CONFIG_UBSAN_SANITIZE_ALL, the TCP code produces a false-positive warning: net/ipv4/tcp_output.c: In function 'tcp_connect': net/ipv4/tcp_output.c:2207:40: error: array subscript is below array bounds [-Werror=array-bounds] tp->chrono_stat[tp->chrono_type - 1] += now - tp->chrono_st