linux/drivers/net
Alex Elder 195ef57f87 net: ipa: do not clear interrupt in gsi_channel_start()
In gsi_channel_start() there is harmless-looking comment "Clear the
channel's event ring interrupt in case it's pending".  The intent
was to avoid getting spurious interrupts when first bringing up a
channel.

However we now use channel stop/start to implement suspend and
resume, and an interrupt pending at the time we resume is actually
something we don't want to ignore.

The very first time we bring up the channel we do not expect an
interrupt to be pending, and even if it were, the effect would
simply be to schedule NAPI on that channel, which would find nothing
to do, which is not a problem.

Stop clearing any pending IEOB interrupt in gsi_channel_start().
That leaves one caller of the trivial function gsi_isr_ieob_clear().
Get rid of that function and just open-code it in gsi_isr_ieob()
instead.

This fixes a problem where suspend/resume IPA v4.2 would get stuck
when resuming after a suspend.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-16 16:47:19 -07:00
..
appletalk
arcnet
bonding Merge branch 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux 2020-05-09 01:05:30 -07:00
caif
can
dsa Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:48:59 -07:00
ethernet mlxsw: spectrum_trap: Store all trap data in one array 2020-05-16 16:42:31 -07:00
fddi
fjes
hamradio Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:48:59 -07:00
hippi
hyperv hv_netvsc: Add XDP frame size to driver 2020-05-14 21:21:54 -07:00
ieee802154
ipa net: ipa: do not clear interrupt in gsi_channel_start() 2020-05-16 16:47:19 -07:00
ipvlan
netdevsim
phy net: phy: broadcom: fix checkpatch complains about tabs 2020-05-16 13:38:33 -07:00
plip
ppp Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:48:59 -07:00
slip
team
usb Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:48:59 -07:00
vmxnet3
wan
wimax
wireguard
wireless wireless-drivers-next patches for v5.8 2020-05-07 13:22:35 -07:00
xen-netback
bareudp.c net: bareudp: avoid uninitialized variable warning 2020-05-07 17:28:18 -07:00
dummy.c
eql.c
geneve.c
gtp.c
ifb.c
Kconfig
LICENSE.SRC
loopback.c
macsec.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-06 22:10:13 -07:00
macvlan.c netpoll: accept NULL np argument in netpoll_send_skb() 2020-05-07 18:11:07 -07:00
macvtap.c
Makefile
mdio.c
mii.c
net_failover.c
netconsole.c
nlmon.c
ntb_netdev.c
rionet.c
sb1000.c
Space.c
sungem_phy.c
tap.c
thunderbolt.c
tun.c tun: Add XDP frame size 2020-05-14 21:21:55 -07:00
veth.c veth: Xdp using frame_sz in veth driver 2020-05-14 21:21:54 -07:00
virtio_net.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-15 13:48:59 -07:00
vrf.c
vsockmon.c
vxlan.c
xen-netfront.c