Commit c2aac755 authored by Eric Dumazet's avatar Eric Dumazet Committed by sanglipeng
Browse files

tcp: fix tcp_min_tso_segs sysctl 

stable inclusion
from stable-v5.10.184
commit 58e8cf94de128ca8faa9191d2b9feae051118824
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8IRR2

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=58e8cf94de128ca8faa9191d2b9feae051118824



--------------------------------

commit d24f511b upstream.

tcp_min_tso_segs is now stored in u8, so max value is 255.

255 limit is enforced by proc_dou8vec_minmax().

We can therefore remove the gso_max_segs variable.

Fixes: 47996b489bdc ("tcp: convert elligible sysctls to u8")
Signed-off-by: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: default avatarsanglipeng <sanglipeng1@jd.com>
parent 5e1a3262

net/ipv4/sysctl_net_ipv4.c

+0 −2
Original line number Diff line number Diff line
@@ -31,7 +31,6 @@ 
static int two = 2;

static int four = 4;

static int thousand = 1000;

static int gso_max_segs = GSO_MAX_SEGS;

static int tcp_retr1_max = 255;

static int ip_local_port_range_min[] = { 1, 1 };

static int ip_local_port_range_max[] = { 65535, 65535 };
@@ -1243,7 +1242,6 @@ static struct ctl_table ipv4_net_table[] = { 
		.mode		= 0644,

		.proc_handler	= proc_dointvec_minmax,

		.extra1		= SYSCTL_ONE,

		.extra2		= &gso_max_segs,

	},

	{

		.procname	= "tcp_min_rtt_wlen",