Eric Dumazet 21b29e74ff tcp: take care of zero tp->window_clamp in tcp_set_rcvlowat() ... Some applications (like selftests/net/tcp_mmap.c) call SO_RCVLOWAT on their listener, before accept(). This has an unfortunate effect on wscale selection in tcp_select_initial_window() during 3WHS. For instance, tcp_mmap was negotiating wscale 4, regardless of tcp_rmem[2] and sysctl_rmem_max. Do not change tp->window_clamp if it is zero or bigger than our computed value. Zero value is special, it allows tcp_select_initial_window() to enable autotuning. Note that SO_RCVLOWAT use on listener is probably not wise, because tp->scaling_ratio has a default value, possibly wrong. Fixes: d1361840f8 ("tcp: fix SO_RCVLOWAT and RCVBUF autotuning") Signed-off-by: Eric Dumazet <edumazet@google.com> Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com> Reviewed-by: Neal Cardwell <ncardwell@google.com> Link: https://patch.msgid.link/20251003184119.2526655-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>		2025-10-06 13:08:48 -07:00
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6lowpan	net: replace ND_PRINTK with dynamic debug	2025-07-10 15:27:32 -07:00
9p	…
802	…
8021q	net: s/dev_close_many/netif_close_many/	2025-07-18 17:27:47 -07:00
appletalk	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-07-24 11:10:46 -07:00
atm	net: atm: fix memory leak in atm_register_sysfs when device_register fail	2025-09-04 09:53:44 +02:00
ax25	ax25: properly unshare skbs in ax25_kiss_rcv()	2025-09-03 17:06:30 -07:00
batman-adv	batman-adv: remove includes for extern declarations	2025-09-05 15:11:02 +02:00
bluetooth	Bluetooth: Avoid a couple dozen -Wflex-array-member-not-at-end warnings	2025-09-27 11:37:43 -04:00
bpf	Merge branch 'bpf-next/xdp_pull_data' into 'bpf-next/master'	2025-09-23 16:23:58 -07:00
bridge	net: bridge: Install FDB for bridge MAC on VLAN 0	2025-09-23 17:10:49 -07:00
caif	caif: Replace memset(0) + strscpy() with strscpy_pad()	2025-08-12 14:08:56 -07:00
can	can: annotate mtu accesses with READ_ONCE()	2025-09-23 10:04:58 +02:00
ceph	net: WQ_PERCPU added to alloc_workqueue users	2025-09-22 17:40:30 -07:00
core	page_pool: Fix PP_MAGIC_MASK to avoid crashing on some 32-bit arches	2025-10-06 12:14:04 -07:00
dcb	Revert "Documentation: net: add flow control guide and document ethtool API"	2025-10-01 09:48:21 +02:00
devlink	net: replace use of system_wq with system_percpu_wq	2025-09-22 17:40:30 -07:00
dns_resolver	…
dsa	net: s/dev_close_many/netif_close_many/	2025-07-18 17:27:47 -07:00
ethernet	ethernet: Extend device_get_mac_address() to use NVMEM	2025-09-15 18:34:08 -07:00
ethtool	Revert "Documentation: net: add flow control guide and document ethtool API"	2025-10-01 09:48:21 +02:00
handshake	net/handshake: Add new parameter 'HANDSHAKE_A_ACCEPT_KEYRING'	2025-07-08 15:31:44 +02:00
hsr	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-09-11 17:40:13 -07:00
ieee802154	…
ife	…
ipv4	tcp: take care of zero tp->window_clamp in tcp_set_rcvlowat()	2025-10-06 13:08:48 -07:00
ipv6	net: psp: don't assume reply skbs will have a socket	2025-10-03 10:23:50 -07:00
iucv	net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers	2025-08-28 13:14:50 +02:00
kcm	net: kcm: Fix race condition in kcm_unattach()	2025-08-13 18:18:33 -07:00
key	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-07-24 11:10:46 -07:00
l2tp	l2tp: do not use sock_hold() in pppol2tp_session_get_sock()	2025-08-27 17:16:13 -07:00
l3mdev	…
lapb	…
llc	net: make sk->sk_rcvtimeo lockless	2025-06-23 17:05:12 -07:00
mac80211	wifi: mac80211: fix Rx packet handling when pubsta information is not available	2025-09-19 11:59:34 +02:00
mac802154	…
mctp	net: mctp: fix typo in comment	2025-09-08 17:47:57 -07:00
mpls	net: s/dev_get_flags/netif_get_flags/	2025-07-18 17:27:47 -07:00
mptcp	mptcp: minor move_skbs_to_msk() cleanup	2025-09-29 18:23:36 -07:00
ncsi	…
netfilter	netfilter: nf_conntrack: do not skip entries in /proc/net/nf_conntrack	2025-09-24 11:50:28 +02:00
netlabel	audit: add record for multiple task security contexts	2025-08-30 10:15:30 -04:00
netlink	Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net	2025-09-11 17:40:13 -07:00
netrom	…
nfc	net: nfc: nci: Add parameter validation for packet data	2025-09-30 10:27:14 +02:00
nsh	…
openvswitch	net: replace use of system_wq with system_percpu_wq	2025-09-22 17:40:30 -07:00
packet	net: af_packet: Use hrtimer to do the retire operation	2025-09-11 18:40:06 -07:00
phonet	net: add sk_drops_read(), sk_drops_inc() and sk_drops_reset() helpers	2025-08-28 13:14:50 +02:00
psample	…
psp	net: psp: don't assume reply skbs will have a socket	2025-10-03 10:23:50 -07:00
qrtr	…
rds	net: WQ_PERCPU added to alloc_workqueue users	2025-09-22 17:40:30 -07:00
rfkill	net: replace use of system_wq with system_percpu_wq	2025-09-22 17:40:30 -07:00
rose	net: rose: fix a typo in rose_clear_routes()	2025-08-27 17:27:52 -07:00
rxrpc	net: WQ_PERCPU added to alloc_workqueue users	2025-09-22 17:40:30 -07:00
sched	net_sched: act: remove tcfa_qstats	2025-09-02 15:52:24 -07:00
sctp	net/sctp: fix a null dereference in sctp_disposition sctp_sf_do_5_1D_ce()	2025-10-06 11:07:20 -07:00
shaper	…
smc	dibs: Move event handling to dibs layer	2025-09-23 11:13:22 +02:00
strparser	net: make sk->sk_rcvtimeo lockless	2025-06-23 17:05:12 -07:00
sunrpc	SUNRPC: call xs_sock_process_cmsg for all cmsg	2025-09-06 16:51:26 -04:00
switchdev	…
tipc	net: doc: Fix typos in docs	2025-10-03 10:24:14 -07:00
tls	tls: Avoid -Wflex-array-member-not-at-end warning	2025-09-24 16:23:02 -07:00
unix	Networking changes for 6.18.	2025-10-02 15:17:01 -07:00
vmw_vsock	net: WQ_PERCPU added to alloc_workqueue users	2025-09-22 17:40:30 -07:00
wireless	wifi: cfg80211: fix width unit in cfg80211_radio_chandef_valid()	2025-09-23 09:50:02 +02:00
x25	net/x25: Remove unused x25_terminate_link()	2025-07-14 17:19:13 -07:00
xdp	xsk: wrap generic metadata handling onto separate function	2025-09-26 13:51:45 -07:00
xfrm	ipsec-next-2025-09-26	2025-09-26 14:44:50 -07:00
Kconfig	dibs: Create drivers/dibs	2025-09-23 11:13:21 +02:00
Kconfig.debug	…
Makefile	psp: base PSP device support	2025-09-18 12:32:06 +02:00
compat.c	…
devres.c	…
socket.c	Networking changes for 6.18.	2025-10-02 15:17:01 -07:00
sysctl_net.c	…