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Saravana Kannan 7bd0cef5da net: mdio-mux: Handle -EPROBE_DEFER correctly 
When registering mdiobus children, if we get an -EPROBE_DEFER, we shouldn't
ignore it and continue registering the rest of the mdiobus children. This
would permanently prevent the deferring child mdiobus from working instead
of reattempting it in the future. So, if a child mdiobus needs to be
reattempted in the future, defer the entire mdio-mux initialization.

This fixes the issue where PHYs sitting under the mdio-mux aren't
initialized correctly if the PHY's interrupt controller is not yet ready
when the mdio-mux is being probed. Additional context in the link below.

Fixes: 0ca2997d14 ("netdev/of/phy: Add MDIO bus multiplexer support.")
Link: https://lore.kernel.org/lkml/CAGETcx95kHrv8wA-O+-JtfH7H9biJEGJtijuPVN0V5dUKUAB3A@mail.gmail.com/#t
Signed-off-by: Saravana Kannan <saravanak@google.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Tested-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-08-18 10:48:52 +01:00
..
accessibility TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
acpi Revert "ACPICA: Fix memory leak caused by _CID repair function" 2021-08-03 18:14:44 +02:00
amba
android
ata libata-5.14-2021-07-30 2021-07-30 10:56:47 -07:00
atm Networking changes for 5.14. 2021-06-30 15:51:09 -07:00
auxdisplay
base firmware_loader: fix use-after-free in firmware_fallback_sysfs 2021-07-29 17:22:15 +02:00
bcma
block block-5.14-2021-08-07 2021-08-07 10:26:21 -07:00
bluetooth TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
bus ARM: SoC fixes for v5.14, part 2 2021-08-06 11:41:12 -07:00
cdrom block: remove REQ_OP_SCSI_{IN,OUT} 2021-06-30 15:34:19 -06:00
char tpm_ftpm_tee: Free and unregister TEE shared memory during kexec 2021-07-21 07:55:50 +02:00
clk A collection of clk driver fixes and one core clk API fix 2021-08-03 09:26:09 -07:00
clocksource This round has a diffstat dominated by Qualcomm clk drivers. Honestly though 2021-07-01 13:26:16 -07:00
comedi Staging / IIO driver patches for 5.14-rc1 2021-07-05 14:01:53 -07:00
connector
counter
cpufreq cpufreq: Fix fall-through warning for Clang 2021-07-13 11:53:07 -05:00
cpuidle cpuidle: teo: Rename two local variables in teo_select() 2021-08-03 15:18:57 +02:00
crypto ARM: SoC changes for 5.14 2021-07-10 09:22:44 -07:00
cxl cxl/pci: Rename CXL REGLOC ID 2021-06-17 17:37:18 -07:00
dax fs: remove noop_set_page_dirty() 2021-06-29 10:53:48 -07:00
dca
devfreq PM / devfreq: passive: Fix get_target_freq when not using required-opp 2021-06-24 10:37:35 +09:00
dio
dma dmaengine fixes for v5.14 2021-08-06 11:08:24 -07:00
dma-buf Short summary of fixes pull: 2021-07-13 15:15:17 +02:00
edac EDAC/igen6: fix core dependency AGAIN 2021-07-15 11:59:59 -07:00
eisa
extcon Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
firewire Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
firmware tee: Improve support for kexec and kdump 2021-08-02 14:35:18 +02:00
fpga fpga: dfl: fme: Fix cpu hotplug issue in performance reporting 2021-07-27 11:05:16 -07:00
fsi
gnss
gpio gpio: tqmx86: really make IRQ optional 2021-08-02 17:17:27 +02:00
gpu Short summary of fixes pull: 2021-08-13 06:37:40 +10:00
greybus
hid HID: ft260: fix device removal due to USB disconnect 2021-07-29 12:38:32 +02:00
hsi
hv Drivers: hv: vmbus: Fix duplicate CPU assignments within a device 2021-07-19 09:26:31 +00:00
hwmon Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
hwspinlock
hwtracing Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
i2c i2c: mpc: Poll for MCF 2021-07-20 22:32:01 +02:00
i3c I3C for 5.14 2021-07-10 11:53:06 -07:00
idle
iio Staging / IIO driver patches for 5.14-rc1 2021-07-05 14:01:53 -07:00
infiniband Networking fixes for 5.14-rc6, including fixes from netfilter, bpf, 2021-08-12 16:24:03 -10:00
input This pull request contains the following changes for UML: 2021-07-09 10:19:13 -07:00
interconnect interconnect: Fix undersized devress_alloc allocation 2021-08-02 12:25:00 +03:00
iommu fallthrough fixes for Clang for 5.14-rc2 2021-07-15 13:57:31 -07:00
ipack TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
irqchip irqchip fixes for 5.14, take #1 2021-07-09 15:35:13 +02:00
isdn TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
leds This contains quite a lot of fixes, with more fixes in my inbox that 2021-07-03 11:57:42 -07:00
lightnvm
macintosh
mailbox mbox: add polarfire soc system controller mailbox 2021-06-26 12:06:48 -05:00
mcb mcb: Use DEFINE_RES_MEM() helper macro and fix the end address 2021-06-24 15:56:25 +02:00
md block-5.14-2021-08-07 2021-08-07 10:26:21 -07:00
media media fixes for v5.14-rc5 2021-08-03 09:33:05 -07:00
memory Memory controller drivers for v5.14 - Tegra SoC, part two 2021-06-16 17:36:30 -07:00
memstick for-5.14/block-2021-06-29 2021-06-30 12:12:56 -07:00
message scsi: message: mptfc: Switch from pci_ to dma_ API 2021-06-22 23:00:01 -04:00
mfd Driver core changes for 5.14-rc1 2021-07-05 13:51:41 -07:00
misc Merge tag 'at24-fixes-for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current 2021-07-20 22:28:56 +02:00
mmc MMC core: 2021-07-22 09:51:38 -07:00
most
mtd mtd: cfi_util: Fix unreachable code issue 2021-07-12 11:15:28 -05:00
mux
net net: mdio-mux: Handle -EPROBE_DEFER correctly 2021-08-18 10:48:52 +01:00
nfc nfc: nfcsim: fix use after free during module unload 2021-07-28 10:20:16 +01:00
ntb
nubus
nvdimm cxl for 5.14 2021-07-04 11:55:13 -07:00
nvme block-5.14-2021-07-24 2021-07-24 12:57:06 -07:00
nvmem Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
of Devicetree updates for v5.14: 2021-07-03 10:54:08 -07:00
opp opp: Allow required-opps to be used for non genpd use cases 2021-06-18 09:00:55 +05:30
parisc kernel.h: split out panic and oops helpers 2021-07-01 11:06:04 -07:00
parport
pci PCI: Fix fall-through warning for Clang 2021-07-13 13:59:12 -05:00
pcmcia pcmcia: i82092: fix a null pointer dereference bug 2021-07-23 08:08:54 +02:00
perf drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() 2021-06-17 19:45:24 +01:00
phy USB / Thunderbolt patches for 5.14-rc1 2021-07-05 14:16:22 -07:00
pinctrl This is the bulk of pin control changes for the v5.14 kernel: 2021-07-01 16:57:14 -07:00
platform platform/x86: pcengines-apuv2: Add missing terminating entries to gpio-lookup tables 2021-08-06 14:04:43 +02:00
pnp Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
power power: supply: Fix fall-through warnings for Clang 2021-07-13 14:50:47 -05:00
powercap
pps
ps3
ptp ptp_pch: Restore dependency on PCI 2021-08-16 11:11:06 +01:00
pwm pwm: ep93xx: Ensure configuring period and duty_cycle isn't wrongly skipped 2021-07-08 16:09:30 +02:00
rapidio
ras
regulator regulator: Fixes for v5.14 2021-07-21 12:37:49 -07:00
remoteproc remoteproc updates for v5.14 2021-07-07 10:50:03 -07:00
reset ARM: Drivers for 5.14 2021-07-10 09:46:20 -07:00
rpmsg rpmsg: core: Add driver_data for rpmsg_device_id 2021-06-18 13:13:40 -07:00
rtc RTC for 5.14 2021-07-10 16:19:10 -07:00
s390 Networking fixes for 5.14-rc6, including fixes from netfilter, bpf, 2021-08-12 16:24:03 -10:00
sbus
scsi SCSI fixes on 20210804 2021-08-04 12:41:30 -07:00
sh
siox siox: Simplify error handling via dev_err_probe() 2021-06-24 15:46:34 +02:00
slimbus
soc soc: ixp4xx/qmgr: fix invalid __iomem access 2021-08-03 10:16:34 +02:00
soundwire Char / Misc driver updates for 5.14-rc1 2021-07-05 13:42:16 -07:00
spi spi: Fixes for v5.14 2021-08-06 11:15:02 -07:00
spmi spmi: hisi-spmi-controller: move driver from staging 2021-06-25 10:02:05 +02:00
ssb
staging staging: mt7621-pci: avoid to re-disable clock for those pcies not in use 2021-07-27 15:48:43 +02:00
target scsi: target: Fix NULL dereference on XCOPY completion 2021-07-20 23:18:22 -04:00
tc
tee tee: Correct inappropriate usage of TEE_SHM_DMA_BUF flag 2021-07-21 07:55:50 +02:00
thermal - Add rk3568 sensor support (Finley Xiao) 2021-07-10 11:43:25 -07:00
thunderbolt Revert "thunderbolt: Hide authorized attribute if router does not support PCIe tunnels" 2021-07-27 18:14:25 +02:00
tty serial: 8250_pci: Avoid irq sharing for MSI(-X) interrupts. 2021-07-30 13:06:19 +02:00
uio
usb usb: typec: tcpm: Keep other events when receiving FRS and Sourcing_vbus events 2021-08-05 12:27:43 +02:00
vdpa net/mlx5: Synchronize correct IRQ when destroying CQ 2021-08-09 20:57:00 -07:00
vfio VFIO update for v5.14-rc1 2021-07-03 11:49:33 -07:00
vhost vdpa: support packed virtqueue for set/get_vq_state() 2021-07-08 07:49:01 -04:00
video drm fixes for 5.14-rc2 2021-07-16 11:14:54 -07:00
virt virt: acrn: Do hcall_destroy_vm() before resource release 2021-07-27 16:48:45 +02:00
virtio virtio,vhost,vdpa: features, fixes 2021-07-09 11:06:29 -07:00
visorbus
vlynq
vme
w1
watchdog linux-watchdog 5.14-rc1 tag 2021-07-07 12:57:46 -07:00
xen xen: branch for v5.14-rc1 2021-07-07 11:07:13 -07:00
zorro
Kconfig ide: remove the legacy ide driver 2021-06-16 08:53:58 -06:00
Makefile hyperv-next for 5.14 2021-06-29 11:21:35 -07:00