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67122a7910
linux/drivers/net/dsa
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Michal Vokáč 67122a7910 net: dsa: qca8k: Fix "Unexpected gfp" kernel exception 
Commit 7e99e34701 ("net: dsa: remove dsa_switch_alloc helper")
replaced the dsa_switch_alloc helper by devm_kzalloc in all DSA
drivers. Unfortunately it introduced a typo in qca8k.c driver and
wrong argument is passed to the devm_kzalloc function.

This fix mitigates the following kernel exception:

  Unexpected gfp: 0x6 (__GFP_HIGHMEM|GFP_DMA32). Fixing up to gfp: 0x101 (GFP_DMA|__GFP_ZERO). Fix your code!
  CPU: 1 PID: 44 Comm: kworker/1:1 Not tainted 5.5.9-yocto-ua #1
  Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree)
  Workqueue: events deferred_probe_work_func
  [<c0014924>] (unwind_backtrace) from [<c00123bc>] (show_stack+0x10/0x14)
  [<c00123bc>] (show_stack) from [<c04c8fb4>] (dump_stack+0x90/0xa4)
  [<c04c8fb4>] (dump_stack) from [<c00e1b10>] (new_slab+0x20c/0x214)
  [<c00e1b10>] (new_slab) from [<c00e1cd0>] (___slab_alloc.constprop.0+0x1b8/0x540)
  [<c00e1cd0>] (___slab_alloc.constprop.0) from [<c00e2074>] (__slab_alloc.constprop.0+0x1c/0x24)
  [<c00e2074>] (__slab_alloc.constprop.0) from [<c00e4538>] (__kmalloc_track_caller+0x1b0/0x298)
  [<c00e4538>] (__kmalloc_track_caller) from [<c02cccac>] (devm_kmalloc+0x24/0x70)
  [<c02cccac>] (devm_kmalloc) from [<c030d888>] (qca8k_sw_probe+0x94/0x1ac)
  [<c030d888>] (qca8k_sw_probe) from [<c0304788>] (mdio_probe+0x30/0x54)
  [<c0304788>] (mdio_probe) from [<c02c93bc>] (really_probe+0x1e0/0x348)
  [<c02c93bc>] (really_probe) from [<c02c9884>] (driver_probe_device+0x60/0x16c)
  [<c02c9884>] (driver_probe_device) from [<c02c7fb0>] (bus_for_each_drv+0x70/0x94)
  [<c02c7fb0>] (bus_for_each_drv) from [<c02c9708>] (__device_attach+0xb4/0x11c)
  [<c02c9708>] (__device_attach) from [<c02c8148>] (bus_probe_device+0x84/0x8c)
  [<c02c8148>] (bus_probe_device) from [<c02c8cec>] (deferred_probe_work_func+0x64/0x90)
  [<c02c8cec>] (deferred_probe_work_func) from [<c0033c14>] (process_one_work+0x1d4/0x41c)
  [<c0033c14>] (process_one_work) from [<c00340a4>] (worker_thread+0x248/0x528)
  [<c00340a4>] (worker_thread) from [<c0039148>] (kthread+0x124/0x150)
  [<c0039148>] (kthread) from [<c00090d8>] (ret_from_fork+0x14/0x3c)
  Exception stack(0xee1b5fb0 to 0xee1b5ff8)
  5fa0:                                     00000000 00000000 00000000 00000000
  5fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  5fe0: 00000000 00000000 00000000 00000000 00000013 00000000
  qca8k 2188000.ethernet-1:0a: Using legacy PHYLIB callbacks. Please migrate to PHYLINK!
  qca8k 2188000.ethernet-1:0a eth2 (uninitialized): PHY [2188000.ethernet-1:01] driver [Generic PHY]
  qca8k 2188000.ethernet-1:0a eth1 (uninitialized): PHY [2188000.ethernet-1:02] driver [Generic PHY]

Fixes: 7e99e34701 ("net: dsa: remove dsa_switch_alloc helper")
Signed-off-by: Michal Vokáč <michal.vokac@ysoft.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-06-04 15:47:10 -07:00
..
b53 net: dsa: b53: remove redundant premature assignment to new_pvid 2020-05-27 11:28:23 -07:00
microchip net: dsa: ksz: Select KSZ protocol tag 2020-03-31 10:04:40 -07:00
mv88e6xxx net: dsa: permit cross-chip bridging between all trees in the system 2020-05-10 19:52:33 -07:00
ocelot Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-31 17:48:46 -07:00
qca net: dsa: propagate resolved link config via mac_link_up() 2020-02-27 12:02:14 -08:00
sja1105 net: dsa: sja1105: suppress -Wmissing-prototypes in sja1105_vl.c 2020-06-01 12:13:47 -07:00
bcm_sf2_cfp.c net: dsa: bcm_sf2: Support specifying VLAN tag egress rule 2020-03-30 19:55:42 -07:00
bcm_sf2_regs.h Revert "net: dsa: bcm_sf2: Also configure Port 5 for 2Gb/sec on 7278" 2020-02-26 16:33:35 -08:00
bcm_sf2.c net: dsa: bcm_sf2: Ensure correct sub-node is parsed 2020-04-06 10:22:58 -07:00
bcm_sf2.h net: dsa: bcm_sf2: Add support for optional reset controller line 2019-11-05 18:06:38 -08:00
dsa_loop_bdinfo.c
dsa_loop.c net: dsa: loop: Add module soft dependency 2020-05-10 11:24:20 -07:00
dsa_loop.h
Kconfig net: dsa: vsc73xx: Remove dependency on CONFIG_OF 2020-01-05 14:23:48 -08:00
lan9303_i2c.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
lan9303_mdio.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174 2019-05-30 11:26:41 -07:00
lan9303-core.c net: dsa: Get information about stacked DSA protocol 2020-01-08 16:01:13 -08:00
lan9303.h
lantiq_gswip.c net: dsa: propagate resolved link config via mac_link_up() 2020-02-27 12:02:14 -08:00
lantiq_pce.h net: dsa: Use the correct style for SPDX License Identifier 2019-09-22 15:25:08 -07:00
Makefile net: dsa: add support for Atheros AR9331 built-in switch 2019-12-20 17:05:47 -08:00
mt7530.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-24 13:47:27 -07:00
mt7530.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net 2020-05-24 13:47:27 -07:00
mv88e6060.c net: dsa: Get information about stacked DSA protocol 2020-01-08 16:01:13 -08:00
mv88e6060.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
qca8k.c net: dsa: qca8k: Fix "Unexpected gfp" kernel exception 2020-06-04 15:47:10 -07:00
qca8k.h net: dsa: qca8k: introduce reset via gpio feature 2019-06-27 11:17:30 -07:00
realtek-smi-core.c net: dsa: remove dsa_switch_alloc helper 2019-10-22 12:37:07 -07:00
realtek-smi-core.h net: dsa: fix warning same module names 2019-06-14 19:28:54 -07:00
rtl8366.c net: dsa: rtl8366: Check VLAN ID and not ports 2019-10-02 12:09:23 -04:00
rtl8366rb.c net: dsa: Get information about stacked DSA protocol 2020-01-08 16:01:13 -08:00
vitesse-vsc73xx-core.c net: dsa: vsc73xx: make the MTU configurable 2020-03-27 16:07:25 -07:00
vitesse-vsc73xx-platform.c net: dsa: vsc73xx: convert to devm_platform_ioremap_resource 2020-05-08 22:28:24 -07:00
vitesse-vsc73xx-spi.c net: dsa: vsc73xx: Split vsc73xx driver 2019-07-07 14:16:32 -07:00
vitesse-vsc73xx.h net: dsa: vsc73xx: Split vsc73xx driver 2019-07-07 14:16:32 -07:00