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96e0fa94c7
openwrt/target/linux
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Rosen Penev 96e0fa94c7 ath79: ag71xx: Remove ndo_poll_controller 
It is unused by default and upstream is trying to remove it as it has
negative effects when the driver is under load. Upstream explanation:

netpoll: avoid capture effects for NAPI drivers
As diagnosed by Song Liu, ndo_poll_controller() can
be very dangerous on loaded hosts, since the cpu
calling ndo_poll_controller() might steal all NAPI
contexts (for all RX/TX queues of the NIC).

This capture, showing one ksoftirqd eating all cycles
can last for unlimited amount of time, since one
cpu is generally not able to drain all the queues under load.

It seems that all networking drivers that do use NAPI
for their TX completions, should not provide a ndo_poll_controller() :

Most NAPI drivers have netpoll support already handled
in core networking stack, since netpoll_poll_dev(
 uses poll_napi(dev) to iterate through registered
NAPI contexts for a device.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
2019-03-13 16:35:45 +01:00
..
adm5120 kernel: bump 3.18 to 3.18.133 2019-01-28 18:17:32 +01:00
adm8668 kernel: bump 3.18 to 3.18.133 2019-01-28 18:17:32 +01:00
apm821xx apm821xx: usb: xhci: fix semicolon.cocci warnings 2019-03-13 16:25:37 +01:00
ar7 kernel: bump 4.9 to 4.9.153 2019-01-28 18:17:32 +01:00
ar71xx ar71xx: Speed up mtd extraction in ar71xx.sh 2019-03-13 16:27:41 +01:00
arc770 treewide: use wpad-basic for not small flash targets 2018-10-16 15:07:41 +01:00
archs38 treewide: use wpad-basic for not small flash targets 2018-10-16 15:07:41 +01:00
armvirt armvirt: 32: enable CONFIG_ARM_LPAE 2019-02-19 13:13:49 +00:00
at91 kernel: Build: Split kmod-regmap 2019-01-27 00:16:13 +01:00
ath25 kernel: bump 4.14 to 4.14.79 2018-11-05 16:00:00 +01:00
ath79 ath79: ag71xx: Remove ndo_poll_controller 2019-03-13 16:35:45 +01:00
au1000 treewide: use wpad-basic for not small flash targets 2018-10-16 15:07:41 +01:00
bcm53xx bcm53xx: add first DTS changes queued for the Linux 5.1 2019-02-01 07:09:27 +01:00
brcm47xx kernel: bump 4.19 to 4.19.18 2019-01-28 18:17:32 +01:00
brcm63xx brcm63xx: dts: Unify naming of gpio-led nodes 2019-02-05 16:28:12 +01:00
brcm2708 kernel: add kmod-input-touchscreen-ads7846 2019-02-24 01:17:01 +02:00
cns3xxx kernel: bump 4.19 to 4.19.21 2019-02-14 16:45:01 +01:00
gemini gemini: Generate padded kernel+rootfs images for DIR-685 2019-03-13 16:25:36 +01:00
generic kernel: mtdsplit: wrgg: Support big and little endian 2019-03-13 16:25:36 +01:00
imx6 kernel: disable CONFIG_USB_IMX21_HCD in default for kernel 4.14 2019-02-17 19:22:39 +01:00
ipq40xx ipq40xx: limit frequencies for Asus Lyra 2019-03-13 16:25:35 +01:00
ipq806x ipq806x: fix LED configuration for NEC Aterm WG2600HP 2019-02-28 11:54:09 +01:00
ixp4xx kernel: bump 4.9 to 4.9.160 2019-02-25 17:33:16 +01:00
kirkwood kernel: bump 4.19 to 4.19.24 2019-02-22 10:53:42 +01:00
lantiq fritz-tools: add support for IPQ40xx platform 2019-03-13 16:25:34 +01:00
layerscape layerscape: use wrapped nand_do_upgrade for traverse-ls1043 boards 2019-03-10 17:48:23 +01:00
malta malta: Add support for kernel 4.19 2019-01-13 16:31:40 +01:00
mcs814x kernel: bump 3.18 to 3.18.119 2018-08-20 13:03:23 +02:00
mediatek kernel: bump 4.14 to 4.14.99 2019-02-14 16:45:01 +01:00
mpc85xx mpc85xx: Fix Aerohive HiveAP-330 initramfs image 2019-03-02 13:04:54 +01:00
mvebu kernel: bump 4.14 to 4.14.104 2019-03-05 13:19:43 +01:00
mxs mxs: disable unused serial drivers 2019-03-11 19:35:43 +01:00
octeon octeon: fix typo in platform.sh 2019-01-12 19:40:13 +01:00
octeontx kernel: enable memory compaction 2018-10-09 14:29:55 +02:00
omap kernel: bump 4.14 to 4.14.77 2018-10-19 10:01:57 +02:00
omap24xx omap24xx: remove referece to not existing kmod-usb-musb-tusb6010 2018-01-15 13:13:34 +01:00
orion treewide: use wpad-basic for not small flash targets 2018-10-16 15:07:41 +01:00
oxnas oxnas: install wireless driver on pogoplugpro 2019-03-12 14:18:42 +01:00
pistachio kernel: bump 4.14 to 4.14.91 2019-01-07 17:09:06 +01:00
ppc40x kernel: only optimized for size if small_flash 2018-07-12 18:15:32 +02:00
ppc44x kernel: only optimized for size if small_flash 2018-07-12 18:15:32 +02:00
ramips ramips: HC5861 drop unused gpio group define in dts 2019-03-13 16:25:34 +01:00
rb532 kernel: bump 4.14 to 4.14.86 2018-12-10 11:48:44 +01:00
samsung kernel: Deactivate CONFIG_COMPAT_BRK 2018-12-26 17:32:48 +01:00
sunxi sunxi: add support for Orange Pi PC Plus 2019-03-09 18:55:15 +01:00
uml treewide: use wpad-basic for not small flash targets 2018-10-16 15:07:41 +01:00
x86 x86: video: disable buildtin amdgpu DRM driver 2019-02-17 19:22:39 +01:00
xburst kernel: bump 3.18 to 3.18.119 2018-08-20 13:03:23 +02:00
zynq kernel: Deactivate CONFIG_COMPAT_BRK 2018-12-26 17:32:48 +01:00
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