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1,089,026 commits

Author SHA1 Message Date
Li Zhijian
36d7d36fcf selftests: net: remove meaningless help option
$ ./fcnal-test.sh -t help
Test names: help

Looks it intent to list the available tests but it didn't do the right
thing. I will add another option the do that in the later patch.

Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 13:12:27 +00:00
Xu Wang
d9e56d1839 mctp: Remove redundant if statements
The 'if (dev)' statement already move into dev_{put , hold}, so remove
redundant if statements.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 13:09:33 +00:00
Xu Wang
98fa41d627 net: openvswitch: Remove redundant if statements
The 'if (dev)' statement already move into dev_{put , hold}, so remove
redundant if statements.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 13:08:19 +00:00
Xu Wang
0c4789460e ipvlan: Remove redundant if statements
The 'if (dev)' statement already move into dev_{put , hold}, so remove
redundant if statements.

Signed-off-by: Xu Wang <vulab@iscas.ac.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 13:07:38 +00:00
Florian Fainelli
88362ebfd7 net: dsa: b53: Add SPI ID table
Currently autoloading for SPI devices does not use the DT ID table, it
uses SPI modalises. Supporting OF modalises is going to be difficult if
not impractical, an attempt was made but has been reverted, so ensure
that module autoloading works for this driver by adding an id_table
listing the SPI IDs for everything.

Fixes: 96c8395e21 ("spi: Revert modalias changes")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 13:05:17 +00:00
Lucas Tanure
0695ad92fe
ASoC: cs35l41: Fix undefined reference to core functions
Auto select core driver if i2c or spi bus drivers are
selected

Fixes: a5e0091d62 ("ASoC: cs35l41: Fix link problem")

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20211201180004.1402156-2-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-02 13:02:45 +00:00
Lucas Tanure
19a628d8f1
ASoC: amd: Fix dependency for SPI master
Set SPI_MASTER as dependency as is using CS35L41 SPI driver

Fixes: 96792fdd77 ("ASoC: amd: enable vangogh platform machine driver build")

Signed-off-by: Lucas Tanure <tanureal@opensource.cirrus.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20211201180004.1402156-1-tanureal@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-02 13:02:44 +00:00
Oder Chiou
e3dd4424c2
ASoC: rt5640: Fix the wrong state of the JD in the HDA header
The patch fixes the wrong state of the JD with 1M pull up resistor in the
HDA header.

Signed-off-by: Oder Chiou <oder_chiou@realtek.com>
Link: https://lore.kernel.org/r/20211201095629.21818-1-oder_chiou@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2021-12-02 13:02:43 +00:00
Vidya Srinivas
0e959b4e99 drm/i915: Add PLANE_CUS_CTL restriction in max_width
PLANE_CUS_CTL has a restriction of 4096 width even though
PLANE_SIZE and scaler size registers supports max 5120.
Take care of this restriction in max_width.

Without this patch, when 5k content is sent on HDR plane
with NV12 content, FIFO underrun is seen and screen blanks
out.

v2: Addressed review comments from Ville. Added separate
functions for max_width - for HDR and SDR

v3: Addressed review comments from Ville. Changed names of
HDR and SDR max_width functions to icl_hdr_plane_max_width
and icl_sdr_plane_max_width

v4: Fixed paranthesis alignment. No code change

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
[vsyrjala: Fix alignment]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211202110836.17536-1-vidya.srinivas@intel.com
2021-12-02 14:54:28 +02:00
Hector Martin
72baffdd26 dt-bindings: interrupt-controller: apple,aic: Add power-domains property
This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The AIC driver doesn't do runtime-pm and likely
never will (since it is system-critical), but it makes sense to describe
the power domain relationship the devicetree properly.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-02 21:52:25 +09:00
Hector Martin
1ed162b56b dt-bindings: pinctrl: apple,pinctrl: Add power-domains property
This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The pinctrl driver doesn't do runtime-pm yet, so
initially this will just keep the domain on permanently.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-02 21:52:25 +09:00
Hector Martin
364609125e dt-bindings: iommu: apple,dart: Add power-domains property
This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The DART driver doesn't do runtime-pm yet, so
initially this will just keep the domain on permanently.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-02 21:52:21 +09:00
Hector Martin
6f8260557d dt-bindings: i2c: apple,i2c: Add power-domains property
This will bind to the PMGR pwrstate nodes that control power/clock
gating to SoC blocks. The i2c driver doesn't do runtime-pm yet, so
initially this will just keep the domain on permanently.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Hector Martin <marcan@marcan.st>
2021-12-02 21:52:21 +09:00
Horatiu Vultur
cc9cf69eea net: lan966x: Fix builds for lan966x driver
The lan966x is using the function 'packing' to create/extract the
information for the IFH, that is used to be added in front of the frames
when they are injected/extracted.
Therefore update the Kconfig to select config option 'PACKING' whenever
lan966x driver is enabled.

Fixes: db8bcaad53 ("net: lan966x: add the basic lan966x driver")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:24:08 +00:00
Horatiu Vultur
a72d45e646 dt-bindings: net: lan966x: Add additional properties for lan966x
This patch updates the dt-bindings for lan966x switch.
It adds the properties 'additionalProperties' and
'unevaluatedProperties' for ethernet-ports and ports nodes. In this way
it is not possible to add more properties to these nodes.

Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:23:10 +00:00
Prabhakar Kushwaha
7e9979e360 qed: Enhance rammod debug prints to provide pretty details
Instead of printing numbers of protocol IDs and rammod commands,
enhance debug prints to provide names. s_protocol_types[] and
s_ramrod_cmd_ids arrays[] are added to support along with APIs.

Signed-off-by: Ariel Elior <aelior@marvell.com>
Signed-off-by: Alok Prasad <palok@marvell.com>
Signed-off-by: Prabhakar Kushwaha <pkushwaha@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:22:17 +00:00
Jiapeng Chong
1ebb87cc89 gro: Fix inconsistent indenting
Eliminate the follow smatch warning:

net/ipv6/ip6_offload.c:249 ipv6_gro_receive() warn: inconsistent
indenting.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:21:11 +00:00
Li Zhijian
a05431b22b selftests: net: Correct case name
ipv6_addr_bind/ipv4_addr_bind are function names. Previously, bind test
would not be run by default due to the wrong case names

Fixes: 34d0302ab8 ("selftests: Add ipv6 address bind tests to fcnal-test")
Fixes: 75b2b2b3db ("selftests: Add ipv4 address bind tests to fcnal-test")
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:19:08 +00:00
Horatiu Vultur
a290cf6927 net: lan966x: Fix duplicate check in frame extraction
The blamed commit generates the following smatch static checker warning:

 drivers/net/ethernet/microchip/lan966x/lan966x_main.c:515 lan966x_xtr_irq_handler()
         warn: duplicate check 'sz < 0' (previous on line 502)

This patch fixes this issue removing the duplicate check 'sz < 0'

Fixes: d28d6d2e37 ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:17:28 +00:00
William Kucharski
19f36edf14 net/rds: correct socket tunable error in rds_tcp_tune()
Correct an error where setting /proc/sys/net/rds/tcp/rds_tcp_rcvbuf would
instead modify the socket's sk_sndbuf and would leave sk_rcvbuf untouched.

Fixes: c6a58ffed5 ("RDS: TCP: Add sysctl tunables for sndbuf/rcvbuf on rds-tcp socket")
Signed-off-by: William Kucharski <william.kucharski@oracle.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:16:57 +00:00
Matt Johnston
76d001603c mctp: Don't let RTM_DELROUTE delete local routes
We need to test against the existing route type, not
the rtm_type in the netlink request.

Fixes: 83f0a0b728 ("mctp: Specify route types, require rtm_type in RTM_*ROUTE messages")
Signed-off-by: Matt Johnston <matt@codeconstruct.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:15:25 +00:00
Tony Lu
00e158fb91 net/smc: Keep smc_close_final rc during active close
When smc_close_final() returns error, the return code overwrites by
kernel_sock_shutdown() in smc_close_active(). The return code of
smc_close_final() is more important than kernel_sock_shutdown(), and it
will pass to userspace directly.

Fix it by keeping both return codes, if smc_close_final() raises an
error, return it or kernel_sock_shutdown()'s.

Link: https://lore.kernel.org/linux-s390/1f67548e-cbf6-0dce-82b5-10288a4583bd@linux.ibm.com/
Fixes: 606a63c978 ("net/smc: Ensure the active closing peer first closes clcsock")
Suggested-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Tony Lu <tonylu@linux.alibaba.com>
Reviewed-by: Wen Gu <guwen@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:14:36 +00:00
Sukadev Bhattiprolu
5b08560181 ibmvnic: drop bad optimization in reuse_tx_pools()
When trying to decide whether or not reuse existing rx/tx pools
we tried to allow a range of values for the pool parameters rather
than exact matches. This was intended to reuse the resources for
instance when switching between two VIO servers with different
default parameters.

But this optimization is incomplete and breaks when we try to
change the number of queues for instance. The optimization needs
to be updated, so drop it for now and simplify the code.

Fixes: bbd809305b ("ibmvnic: Reuse tx pools when possible")
Reported-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Reviewed-by: Rick Lindsley <ricklind@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:09:19 +00:00
Sukadev Bhattiprolu
0584f49496 ibmvnic: drop bad optimization in reuse_rx_pools()
When trying to decide whether or not reuse existing rx/tx pools
we tried to allow a range of values for the pool parameters rather
than exact matches. This was intended to reuse the resources for
instance when switching between two VIO servers with different
default parameters.

But this optimization is incomplete and breaks when we try to
change the number of queues for instance. The optimization needs
to be updated, so drop it for now and simplify the code.

Fixes: 489de956e7 ("ibmvnic: Reuse rx pools when possible")
Reported-by: Dany Madden <drt@linux.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Reviewed-by: Rick Lindsley <ricklind@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:09:19 +00:00
Dust Li
789b6cc2a5 net/smc: fix wrong list_del in smc_lgr_cleanup_early
smc_lgr_cleanup_early() meant to delete the link
group from the link group list, but it deleted
the list head by mistake.

This may cause memory corruption since we didn't
remove the real link group from the list and later
memseted the link group structure.
We got a list corruption panic when testing:

[  231.277259] list_del corruption. prev->next should be ffff8881398a8000, but was 0000000000000000
[  231.278222] ------------[ cut here ]------------
[  231.278726] kernel BUG at lib/list_debug.c:53!
[  231.279326] invalid opcode: 0000 [#1] SMP NOPTI
[  231.279803] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.46+ #435
[  231.280466] Hardware name: Alibaba Cloud ECS, BIOS 8c24b4c 04/01/2014
[  231.281248] Workqueue: events smc_link_down_work
[  231.281732] RIP: 0010:__list_del_entry_valid+0x70/0x90
[  231.282258] Code: 4c 60 82 e8 7d cc 6a 00 0f 0b 48 89 fe 48 c7 c7 88 4c
60 82 e8 6c cc 6a 00 0f 0b 48 89 fe 48 c7 c7 c0 4c 60 82 e8 5b cc 6a 00 <0f>
0b 48 89 fe 48 c7 c7 00 4d 60 82 e8 4a cc 6a 00 0f 0b cc cc cc
[  231.284146] RSP: 0018:ffffc90000033d58 EFLAGS: 00010292
[  231.284685] RAX: 0000000000000054 RBX: ffff8881398a8000 RCX: 0000000000000000
[  231.285415] RDX: 0000000000000001 RSI: ffff88813bc18040 RDI: ffff88813bc18040
[  231.286141] RBP: ffffffff8305ad40 R08: 0000000000000003 R09: 0000000000000001
[  231.286873] R10: ffffffff82803da0 R11: ffffc90000033b90 R12: 0000000000000001
[  231.287606] R13: 0000000000000000 R14: ffff8881398a8000 R15: 0000000000000003
[  231.288337] FS:  0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
[  231.289160] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  231.289754] CR2: 0000000000e72058 CR3: 000000010fa96006 CR4: 00000000003706f0
[  231.290485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  231.291211] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  231.291940] Call Trace:
[  231.292211]  smc_lgr_terminate_sched+0x53/0xa0
[  231.292677]  smc_switch_conns+0x75/0x6b0
[  231.293085]  ? update_load_avg+0x1a6/0x590
[  231.293517]  ? ttwu_do_wakeup+0x17/0x150
[  231.293907]  ? update_load_avg+0x1a6/0x590
[  231.294317]  ? newidle_balance+0xca/0x3d0
[  231.294716]  smcr_link_down+0x50/0x1a0
[  231.295090]  ? __wake_up_common_lock+0x77/0x90
[  231.295534]  smc_link_down_work+0x46/0x60
[  231.295933]  process_one_work+0x18b/0x350

Fixes: a0a62ee15a ("net/smc: separate locks for SMCD and SMCR link group lists")
Signed-off-by: Dust Li <dust.li@linux.alibaba.com>
Acked-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Tony Lu <tonylu@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:07:46 +00:00
Xiayu Zhang
72f6a45202 Fix Comment of ETH_P_802_3_MIN
The description of ETH_P_802_3_MIN is misleading.
The value of EthernetType in Ethernet II frame is more than 0x0600,
the value of Length in 802.3 frame is less than 0x0600.

Signed-off-by: Xiayu Zhang <Xiayu.Zhang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:07:04 +00:00
Tianhao Chai
553217c244 ethernet: aquantia: Try MAC address from device tree
Apple M1 Mac minis (2020) with 10GE NICs do not have MAC address in the
card, but instead need to obtain MAC addresses from the device tree. In
this case the hardware will report an invalid MAC.

Currently atlantic driver does not query the DT for MAC address and will
randomly assign a MAC if the NIC doesn't have a permanent MAC burnt in.
This patch causes the driver to perfer a valid MAC address from OF (if
present) over HW self-reported MAC and only fall back to a random MAC
address when neither of them is valid.

Signed-off-by: Tianhao Chai <cth451@gmail.com>
Reviewed-by: Igor Russkikh <irusskikh@marvell.com>
Reviewed-by: Hector Martin <marcan@marcan.st>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:06:03 +00:00
Ansuel Smith
dfb40cba6d dt-bindings: net: dsa: qca8k: improve port definition documentation
Clean and improve port definition for qca8k documentation by referencing
the dsa generic port definition and adding the additional specific port
definition.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:03:36 +00:00
Ansuel Smith
75c9901544 dt-bindings: net: dsa: split generic port definition from dsa.yaml
Some switch may require to add additional binding to the node port.
Move DSA generic port definition to a dedicated yaml to permit this.

Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 12:03:36 +00:00
Fabrizio Bertocci
a602f5111f platform/x86: amd-pmc: Fix s2idle failures on certain AMD laptops
On some AMD hardware laptops, the system fails communicating with the
PMC when entering s2idle and the machine is battery powered.

Hardware description: HP Pavilion Aero Laptop 13-be0097nr
CPU: AMD Ryzen 7 5800U with Radeon Graphics
GPU: 03:00.0 VGA compatible controller [0300]: Advanced Micro Devices,
Inc. [AMD/ATI] Device [1002:1638] (rev c1)

Detailed description of the problem (and investigation) here:
https://gitlab.freedesktop.org/drm/amd/-/issues/1799

Patch is a single line: reduce the polling delay in half, from 100uSec
to 50uSec when waiting for a change in state from the PMC after a
write command operation.

After changing the delay, I did not see a single failure on this
machine (I have this fix for now more than one week and s2idle worked
every single time on battery power).

Cc: stable@vger.kernel.org
Acked-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Signed-off-by: Fabrizio Bertocci <fabriziobertocci@gmail.com>
Link: https://lore.kernel.org/r/CADtzkx7TdfbwtaVEXUdD6YXPey52E-nZVQNs+Z41DTx7gqMqtw@mail.gmail.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-12-02 12:58:26 +01:00
Hans de Goede
a274cd66bc platform/x86: touchscreen_dmi: Add TrekStor SurfTab duo W1 touchscreen info
The TrekStor SurfTab duo W1 (ST10432-10b) has a Goodix touchscreen which
has its x-axis mirrored.

Add a quirk to fix this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211124175125.250329-1-hdegoede@redhat.com
2021-12-02 12:58:26 +01:00
Matan Ziv-Av
60a076ea8a platform/x86: lg-laptop: Recognize more models
LG uses 5 instead of 0 in the third digit (second digit after 2019)
of the year string to indicate newer models in the same year.
Handle this case as well.

Signed-off-by: Matan Ziv-Av <matan@svgalib.org>
Link: https://lore.kernel.org/r/c752b3b2-9718-bd9a-732d-e165aa8a1fca@svgalib.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-12-02 12:58:26 +01:00
Yang Li
37f34df84a platform/x86: asus-wmi: remove unneeded semicolon
Eliminate the following coccicheck warning:
./drivers/platform/x86/asus-wmi.c:2386:2-3: Unneeded semicolon

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1637719332-45224-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2021-12-02 12:58:25 +01:00
Hans de Goede
e1dbdd2f4a platform/x86: thinkpad_acpi: Add lid_logo_dot to the list of safe LEDs
There have been various bugs / forum threads about allowing control of
the LED in the ThinkPad logo on the lid of various models.

This seems to be something which users want to control and there really
is no reason to require setting CONFIG_THINKPAD_ACPI_UNSAFE_LEDS for this.

The lid-logo-dot is LED number 10, so change the name of the 10th led
from unknown_led2 to lid_logo_dot and add it to the TPACPI_SAFE_LEDS mask.

Link: https://www.reddit.com/r/thinkpad/comments/7n8eyu/thinkpad_led_control_under_gnulinux/
BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1943318
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211123210524.266705-2-hdegoede@redhat.com
2021-12-02 12:58:25 +01:00
Hans de Goede
e518704d63 platform/x86: thinkpad_acpi: Add LED_RETAIN_AT_SHUTDOWN to led_class_devs
Add the LED_RETAIN_AT_SHUTDOWN flag to the registered led_class_devs so
that the LEDs do not get turned-off when reloading the driver and thus so
that they also stay under default EC control when reloading the driver,
unless explicitly overridden by the user.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211123210524.266705-1-hdegoede@redhat.com
2021-12-02 12:58:25 +01:00
Nicholas Piggin
20626177c9 powerpc: make memremap_compat_align 64s-only
memremap_compat_align is only relevant when ZONE_DEVICE is selected.
ZONE_DEVICE depends on ARCH_HAS_PTE_DEVMAP, which is only selected
by PPC_BOOK3S_64.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-13-npiggin@gmail.com
2021-12-02 22:57:24 +11:00
Nicholas Piggin
ffbe5d21d1 powerpc/64: pcpu setup avoid reading mmu_linear_psize on 64e or radix
Radix never sets mmu_linear_psize so it's always 4K, which causes pcpu
atom_size to always be PAGE_SIZE. 64e sets it to 1GB always.

Make paths for these platforms to be explicit about what value they set
atom_size to.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-12-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
f43d2ffb47 powerpc/64s: Rename hash_hugetlbpage.c to hugetlbpage.c
This file contains functions and data common to radix, so rename it to
remove the hash_ prefix.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-11-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
bdad5d57df powerpc/64s: move page size definitions from hash specific file
The radix code uses some of the psize variables. Move the common
ones from hash_utils.c to pgtable.c.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-10-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
310dce6201 powerpc/64s: Make flush_and_reload_slb a no-op when radix is enabled
The radix test can exclude slb_flush_all_realmode() from being called
because flush_and_reload_slb() is only expected to flush ERAT when
called by flush_erat(), which is only on pre-ISA v3.0 CPUs that do not
support radix.

This helps the later change to make hash support configurable to not
introduce runtime changes to radix mode behaviour.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-9-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
162b0889bb powerpc/64s: move THP trace point creation out of hash specific file
In preparation for making hash MMU support configurable, move THP
trace point function definitions out of an otherwise hash-specific
file.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-8-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
3d3282fd34 powerpc/pseries: lparcfg don't include slb_size line in radix mode
This avoids a change in behaviour in the later patch making hash
support configurable. This is possibly a user interface change, so
the alternative would be a hard-coded slb_size=0 here.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-7-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
0c7cc15e92 powerpc/pseries: move process table registration away from hash-specific code
This reduces ifdefs in a later change which makes hash support configurable.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-6-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
935b534c24 powerpc/64s: Move and rename do_bad_slb_fault as it is not hash specific
slb.c is hash-specific SLB management, but do_bad_slb_fault deals with
segment interrupts that occur with radix MMU as well.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-5-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
a4135cbebd powerpc/pseries: Stop selecting PPC_HASH_MMU_NATIVE
The pseries platform does not use the native hash code but the PAPR
virtualised hash interfaces, so remove PPC_HASH_MMU_NATIVE.

This requires moving tlbiel code from hash_native.c to hash_utils.c.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-4-npiggin@gmail.com
2021-12-02 22:57:23 +11:00
Nicholas Piggin
7ebc49031d powerpc: Rename PPC_NATIVE to PPC_HASH_MMU_NATIVE
PPC_NATIVE now only controls the native HPT code, so rename it to be
more descriptive. Restrict it to Book3S only.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-3-npiggin@gmail.com
2021-12-02 22:57:22 +11:00
Nicholas Piggin
79b74a6848 powerpc: Remove unused FW_FEATURE_NATIVE references
FW_FEATURE_NATIVE_ALWAYS and FW_FEATURE_NATIVE_POSSIBLE are always
zero and never do anything. Remove them.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201144153.2456614-2-npiggin@gmail.com
2021-12-02 22:57:22 +11:00
Alexey Kardashevskiy
792020907b KVM: PPC: Book3S: Suppress failed alloc warning in H_COPY_TOFROM_GUEST
H_COPY_TOFROM_GUEST is an hcall for an upper level VM to access its nested
VMs memory. The userspace can trigger WARN_ON_ONCE(!(gfp & __GFP_NOWARN))
in __alloc_pages() by constructing a tiny VM which only does
H_COPY_TOFROM_GUEST with a too big GPR9 (number of bytes to copy).

This silences the warning by adding __GFP_NOWARN.

Spotted by syzkaller.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210901084550.1658699-1-aik@ozlabs.ru
2021-12-02 22:56:08 +11:00
Eric Dumazet
213f5f8f31 ipv4: convert fib_num_tclassid_users to atomic_t
Before commit faa041a40b ("ipv4: Create cleanup helper for fib_nh")
changes to net->ipv4.fib_num_tclassid_users were protected by RTNL.

After the change, this is no longer the case, as free_fib_info_rcu()
runs after rcu grace period, without rtnl being held.

Fixes: faa041a40b ("ipv4: Create cleanup helper for fib_nh")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2021-12-02 11:56:04 +00:00
Alexey Kardashevskiy
511d25d6b7 KVM: PPC: Book3S: Suppress warnings when allocating too big memory slots
The userspace can trigger "vmalloc size %lu allocation failure: exceeds
total pages" via the KVM_SET_USER_MEMORY_REGION ioctl.

This silences the warning by checking the limit before calling vzalloc()
and returns ENOMEM if failed.

This does not call underlying valloc helpers as __vmalloc_node() is only
exported when CONFIG_TEST_VMALLOC_MODULE and __vmalloc_node_range() is
not exported at all.

Spotted by syzkaller.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
[mpe: Use 'size' for the variable rather than 'cb']
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210901084512.1658628-1-aik@ozlabs.ru
2021-12-02 22:55:10 +11:00