Commit Graph

1251424 Commits

Author SHA1 Message Date
Dimitri Fedrau
f29207d2e0 net: phy: marvell-88q2xxx: move interrupt configuration
Move interrupt configuration from mv88q222x_revb0_config_init to
mv88q2xxx_config_init. Same register and bits are used for the 88q2xxx
devices.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Stefan Eichenberger <eichest@gmail.com>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-15-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:57:00 -08:00
Dimitri Fedrau
923d3104f7 net: phy: marvell-88q2xxx: remove duplicated assignment of pma_extable
Remove assignment of phydev->pma_extable in mv88q222x_revb0_config_init.
It is already done in mv88q2xxx_config_init, just call
mv88q2xxx_config_init.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-14-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:57:00 -08:00
Dimitri Fedrau
ec2660946a net: phy: marvell-88q2xxx: cleanup mv88q2xxx_config_init
mv88q2xxx_config_init calls genphy_c45_read_pma which is done by
mv88q2xxx_read_status, it calls also mv88q2xxx_config_aneg which is
also called by the PHY state machine. Let the PHY state machine handle
the phydriver ops in their intendend way.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Stefan Eichenberger <eichest@gmail.com>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-13-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:57:00 -08:00
Dimitri Fedrau
969dd0cf29 net: phy: marvell-88q2xxx: switch to mv88q2xxx_config_aneg
Switch to mv88q2xxx_config_aneg for Marvell 88Q2220 devices and remove
the mv88q222x_config_aneg function which is basically a copy of the
mv88q2xxx_config_aneg function.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-12-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:57:00 -08:00
Dimitri Fedrau
3810e029e2 net: phy: marvell-88q2xxx: make mv88q2xxx_config_aneg generic
Marvell 88Q2xxx devices follow the same scheme, after configuration they
need a soft reset. Soft resets differ between devices, so we use the
.soft_reset callback instead of creating .config_aneg callbacks for each
device.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-11-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
560d9a39ae net: phy: marvell-88q2xxx: add cable test support
Add cable test support for Marvell 88Q222x devices. Reported distance
granularity is 1m.

1m cable, open:
  Cable test started for device eth0.
  Cable test completed for device eth0.
  Pair A code Open Circuit
  Pair A, fault length: 1.00m

1m cable, shorted:
  Cable test started for device eth0.
  Cable test completed for device eth0.
  Pair A code Short within Pair
  Pair A, fault length: 1.00m

6m cable, open:
  Cable test started for device eth0.
  Cable test completed for device eth0.
  Pair A code Open Circuit
  Pair A, fault length: 6.00m

6m cable, shorted:
  Cable test started for device eth0.
  Cable test completed for device eth0.
  Pair A code Short within Pair
  Pair A, fault length: 6.00m

Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240218075753.18067-10-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
a557a92e68 net: phy: marvell-88q2xxx: add support for temperature sensor
Marvell 88q2xxx devices have an inbuilt temperature sensor. Add hwmon
support for this sensor.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-9-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
5f9f361a3d net: phy: marvell-88q2xxx: add suspend / resume ops
Add suspend/resume ops for Marvell 88Q2xxx devices.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-8-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
caa858b757 net: phy: marvell-88q2xxx: add interrupt support for link detection
Added .config_intr and .handle_interrupt callbacks. Whenever the link
goes up or down an interrupt will be triggered. Interrupts are configured
separately for 100/1000BASET1.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-7-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
e57e4c7f6c net: phy: marvell-88q2xxx: add driver for the Marvell 88Q2220 PHY
Add a driver for the Marvell 88Q2220. This driver allows to detect the
link, switch between 100BASE-T1 and 1000BASE-T1 and switch between
master and slave mode. Autonegotiation is supported.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Gregor Herburger <gregor.herburger@ew.tq-group.com>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-6-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
944767b00d net: phy: marvell-88q2xxx: fix typos
Rename mv88q2xxxx_get_sqi to mv88q2xxx_get_sqi and
mv88q2xxxx_get_sqi_max to mv88q2xxx_get_sqi_max.
Fix linebreaks and use everywhere hexadecimal numbers written with
lowercase letters instead of mixing it up.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-5-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
8d9a577f0e net: phy: c45: detect 100/1000BASE-T1 linkmode advertisements
Set 100BT1 and 1000BT1 linkmode advertisement bits to adv_l_mask to
enable detection.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-4-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:59 -08:00
Dimitri Fedrau
ac0c530619 net: phy: Support 100/1000BT1 linkmode advertisements
Extend helper functions mii_t1_adv_m_mod_linkmode_t and
linkmode_adv_to_mii_t1_adv_m_t to support 100BT1 and 1000BT1 linkmode
advertisements.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-3-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:58 -08:00
Dimitri Fedrau
953cc64332 net: phy: Add BaseT1 auto-negotiation constants
Added constants for advertising 100BT1 and 1000BT1 in register BASE-T1
auto-negotiation advertisement register [31:16] (Register 7.515)

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Dimitri Fedrau <dima.fedrau@gmail.com>
Link: https://lore.kernel.org/r/20240218075753.18067-2-dima.fedrau@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:56:58 -08:00
Raju Lakkaraju
59f95f5da8 net: phy: mxl-gpy: fill in possible_interfaces for GPY21x chipset
Fill in the possible_interfaces member.
GPY21x phys support the SGMII and 2500base-X interfaces

Signed-off-by: Raju Lakkaraju <Raju.Lakkaraju@microchip.com>
Link: https://lore.kernel.org/r/20240216054435.22380-1-Raju.Lakkaraju@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-21 14:34:05 -08:00
David S. Miller
ca61ba3885 Merge branch 'rework-genet-mdioclocking'
Florian Fainelli says:

====================
Rework GENET MDIO controller clocking

This patch series reworks the way that we manage the GENET MDIO
controller clocks around I/O accesses. During testing with a fully
modular build where bcmgenet, mdio-bcm-unimac, and the Broadcom PHY
driver (broadcom) are all loaded as modules, with no particular care
being taken to order them to mimize deferred probing the following bus
error was obtained:

[    4.344831] printk: console [ttyS0] enabled
[    4.351102] 840d000.serial: ttyS1 at MMIO 0x840d000 (irq = 29, base_baud = 5062500) is a Broadcom BCM7271 UART
[    4.363110] 840e000.serial: ttyS2 at MMIO 0x840e000 (irq = 30, base_baud = 5062500) is a Broadcom BCM7271 UART
[    4.387392] iproc-rng200 8402000.rng: hwrng registered
[    4.398012] Consider using thermal netlink events interface
[    4.403717] brcmstb_thermal a581500.thermal: registered AVS TMON of-sensor driver
[    4.440085] bcmgenet 8f00000.ethernet: GENET 5.0 EPHY: 0x0000
[    4.482526] unimac-mdio unimac-mdio.0: Broadcom UniMAC MDIO bus
[    4.514019] bridge: filtering via arp/ip/ip6tables is no longer available by default. Update your scripts to load br_netfilter if you need this.
[    4.551304] SError Interrupt on CPU2, code 0x00000000bf000002 -- SError
[    4.551324] CPU: 2 PID: 8 Comm: kworker/u8:0 Not tainted 6.1.53-0.1pre-g5a26d98e908c #2
[    4.551330] Hardware name: BCM972180HB_V20 (DT)
[    4.551336] Workqueue: events_unbound deferred_probe_work_func
[    4.551363] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    4.551368] pc : el1_abort+0x2c/0x58
[    4.551376] lr : el1_abort+0x20/0x58
[    4.551379] sp : ffffffc00a383960
[    4.551380] x29: ffffffc00a383960 x28: ffffff80029fd780 x27: 0000000000000000
[    4.551385] x26: 0000000000000000 x25: ffffff8002839005 x24: ffffffc00a1f9bd0
[    4.551390] x23: 0000000040000005 x22: ffffffc000a48084 x21: ffffffc00a3dde14
[    4.551394] x20: 0000000096000210 x19: ffffffc00a3839a0 x18: 0000000000000579
[    4.551399] x17: 0000000000000000 x16: 0000000100000000 x15: ffffffc00a3838c0
[    4.551403] x14: 000000000000000a x13: 6e69622f7273752f x12: 3a6e6962732f7273
[    4.551408] x11: 752f3a6e69622f3a x10: 6e6962732f3d4854 x9 : ffffffc0086466a8
[    4.551412] x8 : ffffff80049ee100 x7 : ffffff8003231938 x6 : 0000000000000000
[    4.551416] x5 : 0000002200000000 x4 : ffffffc00a3839a0 x3 : 0000002000000000
[    4.551420] x2 : 0000000000000025 x1 : 0000000096000210 x0 : 0000000000000000
[    4.551429] Kernel panic - not syncing: Asynchronous SError Interrupt
[    4.551432] CPU: 2 PID: 8 Comm: kworker/u8:0 Not tainted 6.1.53-0.1pre-g5a26d98e908c #2
[    4.551435] Hardware name: BCM972180HB_V20 (DT)
[    4.551437] Workqueue: events_unbound deferred_probe_work_func
[    4.551443] Call trace:
[    4.551445]  dump_backtrace+0xe4/0x124
[    4.551452]  show_stack+0x1c/0x28
[    4.551455]  dump_stack_lvl+0x60/0x78
[    4.551462]  dump_stack+0x14/0x2c
[    4.551467]  panic+0x134/0x304
[    4.551472]  nmi_panic+0x50/0x70
[    4.551480]  arm64_serror_panic+0x70/0x7c
[    4.551484]  do_serror+0x2c/0x5c
[    4.551487]  el1h_64_error_handler+0x2c/0x40
[    4.551491]  el1h_64_error+0x64/0x68
[    4.551496]  el1_abort+0x2c/0x58
[    4.551499]  el1h_64_sync_handler+0x8c/0xb4
[    4.551502]  el1h_64_sync+0x64/0x68
[    4.551505]  unimac_mdio_readl.isra.0+0x4/0xc [mdio_bcm_unimac]
[    4.551519]  __mdiobus_read+0x2c/0x88
[    4.551526]  mdiobus_read+0x40/0x60
[    4.551530]  phy_read+0x18/0x20
[    4.551534]  bcm_phy_config_intr+0x20/0x84
[    4.551537]  phy_disable_interrupts+0x2c/0x3c
[    4.551543]  phy_probe+0x80/0x1b0
[    4.551545]  really_probe+0x1b8/0x390
[    4.551550]  __driver_probe_device+0x134/0x14c
[    4.551554]  driver_probe_device+0x40/0xf8
[    4.551559]  __device_attach_driver+0x108/0x11c
[    4.551563]  bus_for_each_drv+0xa4/0xcc
[    4.551567]  __device_attach+0xdc/0x190
[    4.551571]  device_initial_probe+0x18/0x20
[    4.551575]  bus_probe_device+0x34/0x94
[    4.551579]  deferred_probe_work_func+0xd4/0xe8
[    4.551583]  process_one_work+0x1ac/0x25c
[    4.551590]  worker_thread+0x1f4/0x260
[    4.551595]  kthread+0xc0/0xd0
[    4.551600]  ret_from_fork+0x10/0x20
[    4.551608] SMP: stopping secondary CPUs
[    4.551617] Kernel Offset: disabled
[    4.551619] CPU features: 0x00000,00c00080,0000420b
[    4.551622] Memory Limit: none
[    4.833838] ---[ end Kernel panic - not syncing: Asynchronous SError Interrupt ]---

The issue here is that we managed to probe the GENET controller, the
mdio-bcm-unimac MDIO controller, but the PHY was still being held in a
probe deferral state because it depended upon a GPIO controller provider
not loaded yet. As soon as that provider is loaded however, the PHY
continues to probe, tries to disable the interrupts, and this causes a
MDIO transaction. That MDIO transaction requires I/O register accesses
within the GENET's larger block, and since its clocks are turned off,
the CPU gets a bus error signaled as a System Error.

The patch series takes the simplest approach of keeping the clocks
enabled just for the duration of the I/O accesses. This is also
beneficial to other drivers like bcmasp2 which make use of the same MDIO
controller driver.

Changes in v2:

- added missing ret assignment in the if (IS_ERR(priv->clk)) branch

- added Jacob's R-by tags

- corrected the commit ID being reverted in patch #3
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:46:17 +00:00
Florian Fainelli
ba0b78371c Revert "net: bcmgenet: Ensure MDIO unregistration has clocks enabled"
This reverts commit 1b5ea7ffb7 ("net:
bcmgenet: Ensure MDIO unregistration has clocks enabled"). This is no
longer necessary now that the MDIO bus controller has a clock that it
can manage around the I/O accesses.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:46:17 +00:00
Florian Fainelli
ee2b4cf8b2 net: bcmgenet: Pass "main" clock down to the MDIO driver
GENET has historically had to create a MDIO platform device for its
controller and pass some auxiliary data to it, like a MDIO completion
callback. Now we also pass the "main" clock to allow for the MDIO bus
controller to manage that clock adequately around I/O accesses.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:46:17 +00:00
Florian Fainelli
ee975351cf net: mdio: mdio-bcm-unimac: Manage clock around I/O accesses
Up until now we have managed not to have the mdio-bcm-unimac manage its
clock except during probe and suspend/resume. This works most of the
time, except where it does not.

With a fully modular build, we can get into a situation whereby the
GENET driver is fully registered, and so is the mdio-bcm-unimac driver,
however the Ethernet PHY driver is not yet, because it depends on a
resource that is not yet available (e.g.: GPIO provider). In that state,
the network device is not usable yet, and so to conserve power, the
GENET driver will have turned off its "main" clock which feeds its MDIO
controller.

When the PHY driver finally probes however, we make an access to the PHY
registers to e.g.: disable interrupts, and this causes a bus error
within the MDIO controller space because the MDIO controller clock(s)
are turned off.

To remedy that, we manage the clock around all of the I/O accesses to
the hardware which are done exclusively during read, write and clock
divider configuration.

This ensures that the register space is accessible, and this also
ensures that there are not unnecessarily elevated reference counts
keeping the clocks active when the network device is administratively
turned off. It would be the case with the previous way of managing the
clock.

Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:46:17 +00:00
Simon Horman
78b88ef392 net: wan: framer: remove children from struct framer_ops kdoc
Remove documentation of non-existent children field
from the Kernel doc for struct framer_ops.

Introduced by 82c944d05b ("net: wan: Add framer framework support")

Signed-off-by: Simon Horman <horms@kernel.org>
Acked-by: Herve Codina <herve.codina@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 12:41:24 +00:00
David S. Miller
e199c4ba82 Merge tag 'wireless-next-2024-02-20' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:

====================
wireless-next patches for v6.9

The second "new features" pull request for v6.9.  Lots of iwlwifi and
stack changes this time. And naturally smaller changes to other drivers.

We also twice merged wireless into wireless-next to avoid conflicts
between the trees.

Major changes:

stack

* mac80211: negotiated TTLM request support

* SPP A-MSDU support

* mac80211: wider bandwidth OFDMA config support

iwlwifi

* kunit tests

* bump FW API to 89 for AX/BZ/SC devices

* enable SPP A-MSDUs

* support for new devices

ath12k

* refactoring in preparation for Multi-Link Operation (MLO) support

* 1024 Block Ack window size support

* provide firmware wmi logs via a trace event

ath11k

* 36 bit DMA mask support

* support 6 GHz station power modes: Low Power Indoor (LPI), Standard
  Power) SP and Very Low Power (VLP)

rtl8xxxu

* TP-Link TL-WN823N V2 support
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:48:20 +00:00
David S. Miller
5d8956a1d9 Merge branch 'net-kmem-cache-create'
Kunwu Chan says:

====================
net: Use KMEM_CACHE instead of kmem_cache_create

As Jiri Pirko suggests,
I'm using a patchset to cleanup the same issues in the 'net' module.
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.

Some cache names are changed to be the same as struct names.
This change is recorded in the changelog for easy reference.
It's harmless cause it's used in /proc/slabinfo to identify this cache.
---
Changes in v2:
	- Delete a patch as Eric said in https://lore.kernel.org/all/CANn89iLkWvum6wSqSya_K+1eqnFvp=L2WLW=kAYrZTF8Ei4b7g@mail.gmail.com/
	- No code changes,only add Reviewed-by tag
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:58 +00:00
Kunwu Chan
072f88ca5c ipv6: Simplify the allocation of slab caches
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:58 +00:00
Kunwu Chan
7eb2bc2481 ipv4: Simplify the allocation of slab caches in ip_rt_init
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.
And change cache name from 'ip_dst_cache' to 'rtable'.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:58 +00:00
Kunwu Chan
eec70af2b4 ipmr: Simplify the allocation of slab caches
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.
And change cache name from 'ip_mrt_cache' to 'mfc_cache'.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:57 +00:00
Kunwu Chan
11a548f252 ip6mr: Simplify the allocation of slab caches in ip6_mr_init
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.
And change cache name from 'ip6_mrt_cache' to 'mfc6_cache'.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:57 +00:00
Kunwu Chan
5073d64e99 net: kcm: Simplify the allocation of slab caches
Use the new KMEM_CACHE() macro instead of direct kmem_cache_create
to simplify the creation of SLAB caches.
And change cache name from 'kcm_mux_cache' to 'kcm_mux',
'kcm_psock_cache' to 'kcm_psock'.

Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:28:57 +00:00
Breno Leitao
a381690dd8 net/dummy: Move stats allocation to core
With commit 34d21de99c ("net: Move {l,t,d}stats allocation to core and
convert veth & vrf"), stats allocation could be done on net core instead
of this driver.

With this new approach, the driver doesn't have to bother with error
handling (allocation failure checking, making sure free happens in the
right spot, etc). This is core responsibility now.

Move dummy driver to leverage the core allocation.

Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:20:56 +00:00
Heiner Kallweit
ebb0346a11 tg3: simplify tg3_phy_autoneg_cfg
Make use of ethtool_adv_to_mmd_eee_adv_t() to simplify the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:16:12 +00:00
Heiner Kallweit
8306ee08c0 tg3: copy only needed fields from userspace-provided EEE data
The current code overwrites fields in tp->eee with unchecked data from
edata, e.g. the bitmap with supported modes. ethtool properly returns
the received data from get_eee() call, but we have no guarantee that
other users of the ioctl set_eee() interface behave properly too.
Therefore copy only fields which are actually needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 11:15:12 +00:00
David S. Miller
b0117d136b Merge branch 'net-constify-device_type'
Ricardo B. Marliere says:

====================
net: constify struct device_type usage

This is a simple and straight forward cleanup series that makes all device
types in the net subsystem constants. This has been possible since 2011 [1]
but not all occurrences were cleaned. I have been sweeping the tree to fix
them all.

I was not sure if I should send these squashed, but there are quite a few
changes so I decided to send them separately. Please let me know if that is
not desirable.

[1] https://lore.kernel.org/all/1305850262-9575-5-git-send-email-gregkh@suse.de/

====================

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
2024-02-21 09:45:24 +00:00
Ricardo B. Marliere
55fad9c4a3 net: hso: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the hso_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
7eccf41b3b net: wwan: core: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the wwan_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
52042e092b net: netdevsim: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the
nsim_bus_dev_type variable to be a constant structure as well, placing it
into read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
7ae9d3423f net: vlan: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the vlan_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
43820fd1dd net: l2tp: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the l2tpeth_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
0072b2c1ff net: hsr: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the hsr_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
e443f3acbc net: geneve: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the geneve_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
908ada0da6 net: ppp: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the ppp_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
c7170e7672 net: vxlan: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the vxlan_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
bbc7e4cc21 net: bridge: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the br_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:23 +00:00
Ricardo B. Marliere
7e0acba3b4 net: dsa: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the dsa_type
variable to be a constant structure as well, placing it into read-only
memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:22 +00:00
Ricardo B. Marliere
3ce7caee3a net: usbnet: constify the struct device_type usage
Since commit aed65af1cc ("drivers: make device_type const"), the driver
core can properly handle constant struct device_type. Move the wlan_type
and wwan_type variables to be constant structures as well, placing it into
read-only memory which can not be modified at runtime.

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2024-02-21 09:45:22 +00:00
Krzysztof Kozlowski
2f3bfa8e30 net: wan: framer: constify of_phandle_args in xlate
The xlate callbacks are supposed to translate of_phandle_args to proper
provider without modifying the of_phandle_args.  Make the argument
pointer to const for code safety and readability.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240217100306.86740-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-20 18:28:54 -08:00
Heiner Kallweit
f4d3e595c0 r8169: add MODULE_FIRMWARE entry for RTL8126A
Add the missing MODULE_FIRMWARE entry for RTL8126A.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/47ef79d2-59c4-4d44-9595-366c70c4ad87@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-20 18:28:46 -08:00
Lorenzo Bianconi
c6a28acb1a net: fix pointer check in skb_pp_cow_data routine
Properly check page pointer returned by page_pool_dev_alloc routine in
skb_pp_cow_data() for non-linear part of the original skb.

Reported-by: Julian Wiedmann <jwiedmann.dev@gmail.com>
Closes: https://lore.kernel.org/netdev/cover.1707729884.git.lorenzo@kernel.org/T/#m7d189b0015a7281ed9221903902490c03ed19a7a
Fixes: e6d5dbdd20 ("xdp: add multi-buff support for xdp running in generic mode")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Link: https://lore.kernel.org/r/25512af3e09befa9dcb2cf3632bdc45b807cf330.1708167716.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-02-20 18:26:25 -08:00
Paolo Abeni
4934446297 Merge tag 'linux-can-next-for-6.9-20240220' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:

====================
pull-request: can-next 2024-02-20

this is a pull request of 9 patches for net-next/master.

The first patch is by Francesco Dolcini and removes a redundant check
for pm_clock_support from the m_can driver.

Martin Hundebøll contributes 3 patches to the m_can/tcan4x5x driver to
allow resume upon RX of a CAN frame.

3 patches by Srinivas Goud add support for ECC statistics to the
xilinx_can driver.

The last 2 patches are by Oliver Hartkopp and me, target the CAN RAW
protocol and fix an error in the getsockopt() for CAN-XL introduced in
the previous pull request to net-next (linux-can-next-for-6.9-20240213).

linux-can-next-for-6.9-20240220

* tag 'linux-can-next-for-6.9-20240220' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next:
  can: raw: raw_getsockopt(): reduce scope of err
  can: raw: fix getsockopt() for new CAN_RAW_XL_VCID_OPTS
  can: xilinx_can: Add ethtool stats interface for ECC errors
  can: xilinx_can: Add ECC support
  dt-bindings: can: xilinx_can: Add 'xlnx,has-ecc' optional property
  can: tcan4x5x: support resuming from rx interrupt signal
  can: m_can: allow keeping the transceiver running in suspend
  dt-bindings: can: tcan4x5x: Document the wakeup-source flag
  can: m_can: remove redundant check for pm_clock_support
====================

Link: https://lore.kernel.org/r/20240220085130.2936533-1-mkl@pengutronix.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 15:32:45 +01:00
Florian Westphal
219eee9c0d net: skbuff: add overflow debug check to pull/push helpers
syzbot managed to trigger following splat:
BUG: KASAN: use-after-free in __skb_flow_dissect+0x4a3b/0x5e50
Read of size 1 at addr ffff888208a4000e by task a.out/2313
[..]
  __skb_flow_dissect+0x4a3b/0x5e50
  __skb_get_hash+0xb4/0x400
  ip_tunnel_xmit+0x77e/0x26f0
  ipip_tunnel_xmit+0x298/0x410
  ..

Analysis shows that the skb has a valid ->head, but bogus ->data
pointer.

skb->data gets its bogus value via the neigh layer, which does:

1556    __skb_pull(skb, skb_network_offset(skb));

... and the skb was already dodgy at this point:

skb_network_offset(skb) returns a negative value due to an
earlier overflow of skb->network_header (u16).  __skb_pull thus
"adjusts" skb->data by a huge offset, pointing outside skb->head
area.

Allow debug builds to splat when we try to pull/push more than
INT_MAX bytes.

After this, the syzkaller reproducer yields a more precise splat
before the flow dissector attempts to read off skb->data memory:

WARNING: CPU: 5 PID: 2313 at include/linux/skbuff.h:2653 neigh_connected_output+0x28e/0x400
  ip_finish_output2+0xb25/0xed0
  iptunnel_xmit+0x4ff/0x870
  ipgre_xmit+0x78e/0xbb0

Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240216113700.23013-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 12:21:40 +01:00
Eric Dumazet
5d4cc87414 net: reorganize "struct sock" fields
Last major reorg happened in commit 9115e8cd2a ("net: reorganize
struct sock for better data locality")

Since then, many changes have been done.

Before SO_PEEK_OFF support is added to TCP, we need
to move sk_peek_off to a better location.

It is time to make another pass, and add six groups,
without explicit alignment.

- sock_write_rx (following sk_refcnt) read-write fields in rx path.
- sock_read_rx read-mostly fields in rx path.
- sock_read_rxtx read-mostly fields in both rx and tx paths.
- sock_write_rxtx read-write fields in both rx and tx paths.
- sock_write_tx read-write fields in tx paths.
- sock_read_tx read-mostly fields in tx paths.

Results on TCP_RR benchmarks seem to show a gain (4 to 5 %).

It is possible UDP needs a change, because sk_peek_off
shares a cache line with sk_receive_queue.
If this the case, we can exchange roles of sk->sk_receive
and up->reader_queue queues.

After this change, we have the following layout:

struct sock {
	struct sock_common         __sk_common;          /*     0  0x88 */
	/* --- cacheline 2 boundary (128 bytes) was 8 bytes ago --- */
	__u8                       __cacheline_group_begin__sock_write_rx[0]; /*  0x88     0 */
	atomic_t                   sk_drops;             /*  0x88   0x4 */
	__s32                      sk_peek_off;          /*  0x8c   0x4 */
	struct sk_buff_head        sk_error_queue;       /*  0x90  0x18 */
	struct sk_buff_head        sk_receive_queue;     /*  0xa8  0x18 */
	/* --- cacheline 3 boundary (192 bytes) --- */
	struct {
		atomic_t           rmem_alloc;           /*  0xc0   0x4 */
		int                len;                  /*  0xc4   0x4 */
		struct sk_buff *   head;                 /*  0xc8   0x8 */
		struct sk_buff *   tail;                 /*  0xd0   0x8 */
	} sk_backlog;                                    /*  0xc0  0x18 */
	struct {
		atomic_t                   rmem_alloc;           /*     0   0x4 */
		int                        len;                  /*   0x4   0x4 */
		struct sk_buff *           head;                 /*   0x8   0x8 */
		struct sk_buff *           tail;                 /*  0x10   0x8 */

		/* size: 24, cachelines: 1, members: 4 */
		/* last cacheline: 24 bytes */
	};

	__u8                       __cacheline_group_end__sock_write_rx[0]; /*  0xd8     0 */
	__u8                       __cacheline_group_begin__sock_read_rx[0]; /*  0xd8     0 */
	rcu *                      sk_rx_dst;            /*  0xd8   0x8 */
	int                        sk_rx_dst_ifindex;    /*  0xe0   0x4 */
	u32                        sk_rx_dst_cookie;     /*  0xe4   0x4 */
	unsigned int               sk_ll_usec;           /*  0xe8   0x4 */
	unsigned int               sk_napi_id;           /*  0xec   0x4 */
	u16                        sk_busy_poll_budget;  /*  0xf0   0x2 */
	u8                         sk_prefer_busy_poll;  /*  0xf2   0x1 */
	u8                         sk_userlocks;         /*  0xf3   0x1 */
	int                        sk_rcvbuf;            /*  0xf4   0x4 */
	rcu *                      sk_filter;            /*  0xf8   0x8 */
	/* --- cacheline 4 boundary (256 bytes) --- */
	union {
		rcu *              sk_wq;                /* 0x100   0x8 */
		struct socket_wq * sk_wq_raw;            /* 0x100   0x8 */
	};                                               /* 0x100   0x8 */
	union {
		rcu *                      sk_wq;                /*     0   0x8 */
		struct socket_wq *         sk_wq_raw;            /*     0   0x8 */
	};

	void                       (*sk_data_ready)(struct sock *); /* 0x108   0x8 */
	long                       sk_rcvtimeo;          /* 0x110   0x8 */
	int                        sk_rcvlowat;          /* 0x118   0x4 */
	__u8                       __cacheline_group_end__sock_read_rx[0]; /* 0x11c     0 */
	__u8                       __cacheline_group_begin__sock_read_rxtx[0]; /* 0x11c     0 */
	int                        sk_err;               /* 0x11c   0x4 */
	struct socket *            sk_socket;            /* 0x120   0x8 */
	struct mem_cgroup *        sk_memcg;             /* 0x128   0x8 */
	rcu *                      sk_policy[2];         /* 0x130  0x10 */
	/* --- cacheline 5 boundary (320 bytes) --- */
	__u8                       __cacheline_group_end__sock_read_rxtx[0]; /* 0x140     0 */
	__u8                       __cacheline_group_begin__sock_write_rxtx[0]; /* 0x140     0 */
	socket_lock_t              sk_lock;              /* 0x140  0x20 */
	u32                        sk_reserved_mem;      /* 0x160   0x4 */
	int                        sk_forward_alloc;     /* 0x164   0x4 */
	u32                        sk_tsflags;           /* 0x168   0x4 */
	__u8                       __cacheline_group_end__sock_write_rxtx[0]; /* 0x16c     0 */
	__u8                       __cacheline_group_begin__sock_write_tx[0]; /* 0x16c     0 */
	int                        sk_write_pending;     /* 0x16c   0x4 */
	atomic_t                   sk_omem_alloc;        /* 0x170   0x4 */
	int                        sk_sndbuf;            /* 0x174   0x4 */
	int                        sk_wmem_queued;       /* 0x178   0x4 */
	refcount_t                 sk_wmem_alloc;        /* 0x17c   0x4 */
	/* --- cacheline 6 boundary (384 bytes) --- */
	unsigned long              sk_tsq_flags;         /* 0x180   0x8 */
	union {
		struct sk_buff *   sk_send_head;         /* 0x188   0x8 */
		struct rb_root     tcp_rtx_queue;        /* 0x188   0x8 */
	};                                               /* 0x188   0x8 */
	union {
		struct sk_buff *           sk_send_head;         /*     0   0x8 */
		struct rb_root             tcp_rtx_queue;        /*     0   0x8 */
	};

	struct sk_buff_head        sk_write_queue;       /* 0x190  0x18 */
	u32                        sk_dst_pending_confirm; /* 0x1a8   0x4 */
	u32                        sk_pacing_status;     /* 0x1ac   0x4 */
	struct page_frag           sk_frag;              /* 0x1b0  0x10 */
	/* --- cacheline 7 boundary (448 bytes) --- */
	struct timer_list          sk_timer;             /* 0x1c0  0x28 */

	/* XXX last struct has 4 bytes of padding */

	unsigned long              sk_pacing_rate;       /* 0x1e8   0x8 */
	atomic_t                   sk_zckey;             /* 0x1f0   0x4 */
	atomic_t                   sk_tskey;             /* 0x1f4   0x4 */
	__u8                       __cacheline_group_end__sock_write_tx[0]; /* 0x1f8     0 */
	__u8                       __cacheline_group_begin__sock_read_tx[0]; /* 0x1f8     0 */
	unsigned long              sk_max_pacing_rate;   /* 0x1f8   0x8 */
	/* --- cacheline 8 boundary (512 bytes) --- */
	long                       sk_sndtimeo;          /* 0x200   0x8 */
	u32                        sk_priority;          /* 0x208   0x4 */
	u32                        sk_mark;              /* 0x20c   0x4 */
	rcu *                      sk_dst_cache;         /* 0x210   0x8 */
	netdev_features_t          sk_route_caps;        /* 0x218   0x8 */
	u16                        sk_gso_type;          /* 0x220   0x2 */
	u16                        sk_gso_max_segs;      /* 0x222   0x2 */
	unsigned int               sk_gso_max_size;      /* 0x224   0x4 */
	gfp_t                      sk_allocation;        /* 0x228   0x4 */
	u32                        sk_txhash;            /* 0x22c   0x4 */
	u8                         sk_pacing_shift;      /* 0x230   0x1 */
	bool                       sk_use_task_frag;     /* 0x231   0x1 */
	__u8                       __cacheline_group_end__sock_read_tx[0]; /* 0x232     0 */
	u8                         sk_gso_disabled:1;    /* 0x232: 0 0x1 */
	u8                         sk_kern_sock:1;       /* 0x232:0x1 0x1 */
	u8                         sk_no_check_tx:1;     /* 0x232:0x2 0x1 */
	u8                         sk_no_check_rx:1;     /* 0x232:0x3 0x1 */

	/* XXX 4 bits hole, try to pack */

	u8                         sk_shutdown;          /* 0x233   0x1 */
	u16                        sk_type;              /* 0x234   0x2 */
	u16                        sk_protocol;          /* 0x236   0x2 */
	unsigned long              sk_lingertime;        /* 0x238   0x8 */
	/* --- cacheline 9 boundary (576 bytes) --- */
	struct proto *             sk_prot_creator;      /* 0x240   0x8 */
	rwlock_t                   sk_callback_lock;     /* 0x248   0x8 */
	int                        sk_err_soft;          /* 0x250   0x4 */
	u32                        sk_ack_backlog;       /* 0x254   0x4 */
	u32                        sk_max_ack_backlog;   /* 0x258   0x4 */
	kuid_t                     sk_uid;               /* 0x25c   0x4 */
	spinlock_t                 sk_peer_lock;         /* 0x260   0x4 */
	int                        sk_bind_phc;          /* 0x264   0x4 */
	struct pid *               sk_peer_pid;          /* 0x268   0x8 */
	const struct cred  *       sk_peer_cred;         /* 0x270   0x8 */
	ktime_t                    sk_stamp;             /* 0x278   0x8 */
	/* --- cacheline 10 boundary (640 bytes) --- */
	int                        sk_disconnects;       /* 0x280   0x4 */
	u8                         sk_txrehash;          /* 0x284   0x1 */
	u8                         sk_clockid;           /* 0x285   0x1 */
	u8                         sk_txtime_deadline_mode:1; /* 0x286: 0 0x1 */
	u8                         sk_txtime_report_errors:1; /* 0x286:0x1 0x1 */
	u8                         sk_txtime_unused:6;   /* 0x286:0x2 0x1 */

	/* XXX 1 byte hole, try to pack */

	void *                     sk_user_data;         /* 0x288   0x8 */
	void *                     sk_security;          /* 0x290   0x8 */
	struct sock_cgroup_data    sk_cgrp_data;         /* 0x298   0x8 */
	void                       (*sk_state_change)(struct sock *); /* 0x2a0   0x8 */
	void                       (*sk_write_space)(struct sock *); /* 0x2a8   0x8 */
	void                       (*sk_error_report)(struct sock *); /* 0x2b0   0x8 */
	int                        (*sk_backlog_rcv)(struct sock *, struct sk_buff *); /* 0x2b8   0x8 */
	/* --- cacheline 11 boundary (704 bytes) --- */
	void                       (*sk_destruct)(struct sock *); /* 0x2c0   0x8 */
	rcu *                      sk_reuseport_cb;      /* 0x2c8   0x8 */
	rcu *                      sk_bpf_storage;       /* 0x2d0   0x8 */
	struct callback_head       sk_rcu __attribute__((__aligned__(8))); /* 0x2d8  0x10 */
	netns_tracker              ns_tracker;           /* 0x2e8   0x8 */

	/* size: 752, cachelines: 12, members: 105 */
	/* sum members: 749, holes: 1, sum holes: 1 */
	/* sum bitfield members: 12 bits, bit holes: 1, sum bit holes: 4 bits */
	/* paddings: 1, sum paddings: 4 */
	/* forced alignments: 1 */
	/* last cacheline: 48 bytes */
};

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Paolo Abeni <pabeni@redhat.com>
Link: https://lore.kernel.org/r/20240216162006.2342759-1-edumazet@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 12:01:45 +01:00
Colin Ian King
465c1abcb6 net: tcp: Remove redundant initialization of variable len
The variable len being initialized with a value that is never read, an
if statement is initializing it in both paths of the if statement.
The initialization is redundant and can be removed.

Cleans up clang scan build warning:
net/ipv4/tcp_ao.c:512:11: warning: Value stored to 'len' during its
initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Dmitry Safonov <0x7f454c46@gmail.com>
Link: https://lore.kernel.org/r/20240216125443.2107244-1-colin.i.king@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-02-20 11:40:15 +01:00