Граф коммитов

1065521 Коммитов

Автор SHA1 Сообщение Дата
Pablo Neira Ayuso 37f319f37d netfilter: nft_connlimit: move stateful fields out of expression data
In preparation for the rule blob representation.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:35:16 +01:00
Florian Westphal 6316136ec6 netfilter: egress: avoid a lockdep splat
include/linux/netfilter_netdev.h:97 suspicious rcu_dereference_check() usage!
2 locks held by sd-resolve/1100:
 0: ..(rcu_read_lock_bh){1:3}, at: ip_finish_output2
 1: ..(rcu_read_lock_bh){1:3}, at: __dev_queue_xmit
 __dev_queue_xmit+0 ..

The helper has two callers, one uses rcu_read_lock, the other
rcu_read_lock_bh().  Annotate the dereference to reflect this.

Fixes: 42df6e1d22 ("netfilter: Introduce egress hook")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:35:16 +01:00
Florian Westphal 408bdcfce8 net: prefer nf_ct_put instead of nf_conntrack_put
Its the same as nf_conntrack_put(), but without the
need for an indirect call.  The downside is a module dependency on
nf_conntrack, but all of these already depend on conntrack anyway.

Cc: Paul Blakey <paulb@mellanox.com>
Cc: dev@openvswitch.org
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:14 +01:00
Florian Westphal 6ae7989c9a netfilter: conntrack: avoid useless indirection during conntrack destruction
nf_ct_put() results in a usesless indirection:

nf_ct_put -> nf_conntrack_put -> nf_conntrack_destroy -> rcu readlock +
indirect call of ct_hooks->destroy().

There are two _put helpers:
nf_ct_put and nf_conntrack_put.  The latter is what should be used in
code that MUST NOT cause a linker dependency on the conntrack module
(e.g. calls from core network stack).

Everyone else should call nf_ct_put() instead.

A followup patch will convert a few nf_conntrack_put() calls to
nf_ct_put(), in particular from modules that already have a conntrack
dependency such as act_ct or even nf_conntrack itself.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:13 +01:00
Florian Westphal 285c8a7a58 netfilter: make function op structures const
No functional changes, these structures should be const.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:13 +01:00
Florian Westphal 3fce16493d netfilter: core: move ip_ct_attach indirection to struct nf_ct_hook
ip_ct_attach predates struct nf_ct_hook, we can place it there and
remove the exported symbol.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:13 +01:00
Florian Westphal 7197743776 netfilter: conntrack: convert to refcount_t api
Convert nf_conn reference counting from atomic_t to refcount_t based api.
refcount_t api provides more runtime sanity checks and will warn on
certain constructs, e.g. refcount_inc() on a zero reference count, which
usually indicates use-after-free.

For this reason template allocation is changed to init the refcount to
1, the subsequenct add operations are removed.

Likewise, init_conntrack() is changed to set the initial refcount to 1
instead refcount_inc().

This is safe because the new entry is not (yet) visible to other cpus.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:13 +01:00
Jiapeng Chong 613a0c67d1 netfilter: conntrack: Use max() instead of doing it manually
Fix following coccicheck warning:

./include/net/netfilter/nf_conntrack.h:282:16-17: WARNING opportunity
for max().

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2022-01-09 23:30:13 +01:00
Jakub Kicinski 9f3248c9dd bluetooth-next pull request for net-next:
- Add support for Foxconn QCA 0xe0d0
  - Fix HCI init sequence on MacBook Air 8,1 and 8,2
  - Fix Intel firmware loading on legacy ROM devices
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Merge tag 'for-net-next-2022-01-07' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next

Luiz Augusto von Dentz says:

====================
bluetooth-next pull request for net-next:

 - Add support for Foxconn QCA 0xe0d0
 - Fix HCI init sequence on MacBook Air 8,1 and 8,2
 - Fix Intel firmware loading on legacy ROM devices

* tag 'for-net-next-2022-01-07' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next:
  Bluetooth: hci_sock: fix endian bug in hci_sock_setsockopt()
  Bluetooth: L2CAP: uninitialized variables in l2cap_sock_setsockopt()
  Bluetooth: btqca: sequential validation
  Bluetooth: btusb: Add support for Foxconn QCA 0xe0d0
  Bluetooth: btintel: Fix broken LED quirk for legacy ROM devices
  Bluetooth: hci_event: Rework hci_inquiry_result_with_rssi_evt
  Bluetooth: btbcm: disable read tx power for MacBook Air 8,1 and 8,2
  Bluetooth: hci_qca: Fix NULL vs IS_ERR_OR_NULL check in qca_serdev_probe
  Bluetooth: hci_bcm: Check for error irq
====================

Link: https://lore.kernel.org/r/20220107210942.3750887-1-luiz.dentz@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-09 14:14:09 -08:00
Jakub Kicinski f4bb93a82f linux-can-fixes-for-5.16-20220109
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Merge tag 'linux-can-fixes-for-5.16-20220109' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2022-01-09

The first patch is by Johan Hovold and fixes a mem leak in the error
path of the softing_cs driver.

The next patch is by me and fixes a set but not used variable warning
in the softing driver.

Jiasheng Jiang's patch for the xilinx_can driver adds the missing
error checking when getting the IRQ.

Lad Prabhakar contributes a patch for the rcar_canfd driver to fix a
mem leak in the error path.

The last patch is by Brian Silverman and properly initializes the send
USB messages to avoid spurious CAN error frames.

* tag 'linux-can-fixes-for-5.16-20220109' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
  can: rcar_canfd: rcar_canfd_channel_probe(): make sure we free CAN network device
  can: xilinx_can: xcan_probe(): check for error irq
  can: softing: softing_startstop(): fix set but not used variable warning
  can: softing_cs: softingcs_probe(): fix memleak on registration failure
====================

Link: https://lore.kernel.org/r/20220109134040.1945428-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-01-09 14:00:49 -08:00
Linus Torvalds e900deb248 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input fix from Dmitry Torokhov:
 "A small fixup to the Zinitix touchscreen driver to avoid enabling the
  IRQ line before we successfully requested it"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: zinitix - make sure the IRQ is allocated before it gets enabled
2022-01-09 10:49:12 -08:00
Linus Torvalds 95350123bb SoC: One more fix for 5.16
I had missed one patch when I sent up what I thought was the last batch
 of fixes for this release. This one fixes issues on the Raspberry Pi
 platforms due to gpio init changes this release, so hopefully we can get
 it merged before final release is cut.
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Merge tag 'soc-fixes-5.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fix from Olof Johansson:
 "One more fix for 5.16

  I had missed one patch when I sent up what I thought was the last
  batch of fixes for this release. This one fixes issues on the
  Raspberry Pi platforms due to gpio init changes this release, so
  hopefully we can get it merged before final release is cut"

* tag 'soc-fixes-5.16-5' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: dts: gpio-ranges property is now required
2022-01-09 10:43:16 -08:00
Linus Torvalds 9a12a5aa17 perf tools fixes for v5.16: 6th batch
- Revert "libtraceevent: Increase libtraceevent logging when verbose", breaks the build
   with libtraceevent-1.3.0, i.e. when building with 'LIBTRACEEVENT_DYNAMIC=1'.
 
 - Avoid early exit in 'perf trace' due to running SIGCHLD handler before it
   makes sense to.  It can happen when using a BPF source code event that have
   to be first built into an object file.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.16-2022-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Revert "libtraceevent: Increase libtraceevent logging when verbose",
   breaks the build with libtraceevent-1.3.0, i.e. when building with
   'LIBTRACEEVENT_DYNAMIC=1'.

 - Avoid early exit in 'perf trace' due to running SIGCHLD handler
   before it makes sense to. It can happen when using a BPF source code
   event that have to be first built into an object file.

* tag 'perf-tools-fixes-for-v5.16-2022-01-09' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  Revert "libtraceevent: Increase libtraceevent logging when verbose"
  perf trace: Avoid early exit due to running SIGCHLD handler before it makes sense to
2022-01-09 10:37:07 -08:00
Len Brown df5bc0aa7f Revert "drm/amdgpu: stop scheduler when calling hw_fini (v2)"
This reverts commit f7d6779df6.

This bisected regression has impacted suspend-resume stability
since 5.15-rc1. It regressed -stable via 5.14.10.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215315
Fixes: f7d6779df6 ("drm/amdgpu: stop scheduler when calling hw_fini (v2)")
Cc: Guchun Chen <guchun.chen@amd.com>
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: <stable@vger.kernel.org> # 5.14+
Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-09 10:32:16 -08:00
David S. Miller d5c8725cc9 linux-can-next-for-5.17-20220108
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Merge tag 'linux-can-next-for-5.17-20220108' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next

Marc Kleine-Budde says:

====================
pull-request: can-next 2022-01-08

this is a pull request of 22 patches for net-next/master.

The first patch is by Tom Rix and fixes an uninitialized variable in
the janz-ican3 driver (introduced in linux-can-next-for-5.17-20220105).

The next 13 patches are by my and target the mcp251xfd driver. First
several cleanup patches, then the driver is prepared for the upcoming
ethtool ring parameter and IRQ coalescing support, which is added in a
later pull request.

The remaining 8 patches are by Dario Binacchi and me and enhance the
flexcan driver. The driver is moved into a sub directory. An ethtool
private flag is added to optionally disable CAN RTR frame reception,
to make use of more RX buffers. The resulting RX buffer configuration
can be read by ethtool ring parameter support. Finally documentation
for the ethtool private flag is added to the
Documentation/networking/device_drivers/can directory.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-01-09 16:57:50 +00:00
Brian Silverman 89d58aebe1 can: gs_usb: gs_can_start_xmit(): zero-initialize hf->{flags,reserved}
No information is deliberately sent in hf->flags in host -> device
communications, but the open-source candleLight firmware echoes it
back, which can result in the GS_CAN_FLAG_OVERFLOW flag being set and
generating spurious ERRORFRAMEs.

While there also initialize the reserved member with 0.

Fixes: d08e973a77 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20220106002952.25883-1-brian.silverman@bluerivertech.com
Link: https://github.com/candle-usb/candleLight_fw/issues/87
Cc: stable@vger.kernel.org
Signed-off-by: Brian Silverman <brian.silverman@bluerivertech.com>
[mkl: initialize the reserved member, too]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-09 13:32:28 +01:00
Lad Prabhakar 72b1e36057 can: rcar_canfd: rcar_canfd_channel_probe(): make sure we free CAN network device
Make sure we free CAN network device in the error path. There are
several jumps to fail label after allocating the CAN network device
successfully. This patch places the free_candev() under fail label so
that in failure path a jump to fail label frees the CAN network
device.

Fixes: 76e9353a80 ("can: rcar_canfd: Add support for RZ/G2L family")
Link: https://lore.kernel.org/all/20220106114801.20563-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Reported-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-09 13:32:28 +01:00
Jiasheng Jiang c6564c13da can: xilinx_can: xcan_probe(): check for error irq
For the possible failure of the platform_get_irq(), the returned irq
could be error number and will finally cause the failure of the
request_irq().

Consider that platform_get_irq() can now in certain cases return
-EPROBE_DEFER, and the consequences of letting request_irq()
effectively convert that into -EINVAL, even at probe time rather than
later on. So it might be better to check just now.

Fixes: b1201e44f5 ("can: xilinx CAN controller support")
Link: https://lore.kernel.org/all/20211224021324.1447494-1-jiasheng@iscas.ac.cn
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-09 13:32:28 +01:00
Marc Kleine-Budde 370d988cc5 can: softing: softing_startstop(): fix set but not used variable warning
In the function softing_startstop() the variable error_reporting is
assigned but not used. The code that uses this variable is commented
out. Its stated that the functionality is not finally verified.

To fix the warning:

| drivers/net/can/softing/softing_fw.c:424:9: error: variable 'error_reporting' set but not used [-Werror,-Wunused-but-set-variable]

remove the comment, activate the code, but add a "0 &&" to the if
expression and rely on the optimizer rather than the preprocessor to
remove the code.

Link: https://lore.kernel.org/all/20220109103126.1872833-1-mkl@pengutronix.de
Fixes: 03fd3cf5a1 ("can: add driver for Softing card")
Cc: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-09 13:32:28 +01:00
Nikita Travkin cf73ed894e Input: zinitix - make sure the IRQ is allocated before it gets enabled
Since irq request is the last thing in the driver probe, it happens
later than the input device registration. This means that there is a
small time window where if the open method is called the driver will
attempt to enable not yet available irq.

Fix that by moving the irq request before the input device registration.

Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Fixes: 26822652c8 ("Input: add zinitix touchscreen driver")
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20220106072840.36851-2-nikita@trvn.ru
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-01-08 23:24:28 -08:00
Johan Hovold ced4913efb can: softing_cs: softingcs_probe(): fix memleak on registration failure
In case device registration fails during probe, the driver state and
the embedded platform device structure needs to be freed using
platform_device_put() to properly free all resources (e.g. the device
name).

Fixes: 0a0b7a5f7a ("can: add driver for Softing card")
Link: https://lore.kernel.org/all/20211222104843.6105-1-johan@kernel.org
Cc: stable@vger.kernel.org # 2.6.38
Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 22:46:10 +01:00
Phil Elwell c8013355ea
ARM: dts: gpio-ranges property is now required
Since [1], added in 5.7, the absence of a gpio-ranges property has
prevented GPIOs from being restored to inputs when released.
Add those properties for BCM283x and BCM2711 devices.

[1] commit 2ab73c6d83 ("gpio: Support GPIO controllers without
    pin-ranges")

Link: https://lore.kernel.org/r/20220104170247.956760-1-linus.walleij@linaro.org
Fixes: 2ab73c6d83 ("gpio: Support GPIO controllers without pin-ranges")
Fixes: 266423e60e ("pinctrl: bcm2835: Change init order for gpio hogs")
Reported-by: Stefan Wahren <stefan.wahren@i2se.com>
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20211206092237.4105895-3-phil@raspberrypi.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
2022-01-08 13:28:28 -08:00
Linus Torvalds 4634129ad9 SoC; Fixes for 5.16, part 4
A few more fixes have come in, nothing overly severe but would be good
 to get in by final release:
 
  - More specific compatible fields on the qspi controller for socfpga,
  to enable quirks in the driver.
  - A runtime PM fix for Renesas to fix mismatched reference counts on
  errors.
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Merge tag 'soc-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC fixes from Olof Johansson:
 "A few more fixes have come in, nothing overly severe but would be good
  to get in by final release:

   - More specific compatible fields on the qspi controller for socfpga,
     to enable quirks in the driver

   - A runtime PM fix for Renesas to fix mismatched reference counts on
     errors"

* tag 'soc-fixes-5.16-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: dts: socfpga: change qspi to "intel,socfpga-qspi"
  dt-bindings: spi: cadence-quadspi: document "intel,socfpga-qspi"
  reset: renesas: Fix Runtime PM usage
2022-01-08 12:56:16 -08:00
Dario Binacchi bc3897f79f docs: networking: device drivers: can: add flexcan
Add initial documentation for Flexcan driver.

Link: https://lore.kernel.org/all/20220107193105.1699523-8-mkl@pengutronix.de
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 21:22:58 +01:00
Dario Binacchi 32db1660ee docs: networking: device drivers: add can sub-folder
Add the container for CAN drivers documentation.

Link: https://lore.kernel.org/all/20220107193105.1699523-7-mkl@pengutronix.de
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 21:22:58 +01:00
Dario Binacchi 74fc5a452e can: flexcan: add ethtool support to get rx/tx ring parameters
This patch adds ethtool support to get the number of message buffers
configured for reception/transmission, which may also depends on
runtime configurations such as the 'rx-rtr' flag state.

Link: https://lore.kernel.org/all/20220108181633.420433-1-dario.binacchi@amarulasolutions.com
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
[mkl: port to net-next/master, replace __sw_hweight64 by simpler calculation]
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 21:22:58 +01:00
Marc Kleine-Budde 1c45f5778a can: flexcan: add ethtool support to change rx-rtr setting during runtime
This patch adds a private flag to the flexcan driver to switch the
"rx-rtr" setting on and off.

"rx-rtr" on  - Receive RTR frames. (default)
               The CAN controller can and will receive RTR frames.

	       On some IP cores the controller cannot receive RTR
	       frames in the more performant "RX mailbox" mode and
	       will use "RX FIFO" mode instead.

"rx-rtr" off - Waive ability to receive RTR frames. (not supported on all IP cores)
               This mode activates the "RX mailbox mode" for better
	       performance, on some IP cores RTR frames cannot be
	       received anymore.

The "RX FIFO" mode uses a FIFO with a depth of 6 CAN frames.
The "RX mailbox" mode uses up to 62 mailboxes.

Link: https://lore.kernel.org/all/20220107193105.1699523-6-mkl@pengutronix.de
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Co-developed-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 21:22:26 +01:00
Linus Torvalds 21f35d2ca8 Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
 "Fix the regression with AMD GPU suspend by reverting the
  handling of bus regulators in the I2C core.

  Also, there is a fix for the MPC driver to prevent an
  out-of-bound-access"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  Revert "i2c: core: support bus regulator controlling in adapter"
  i2c: mpc: Avoid out of bounds memory access
2022-01-08 12:12:58 -08:00
Linus Torvalds d445d649c7 Power Supply Fixes for 5.16 cycle
Three fixes for the 5.16 cycle:
 
 1. Avoid going beyond last capacity in the power-supply core
 2. Replace 1E6L with NSEC_PER_MSEC to avoid floating point calculation
    in LLVM resulting in a build failure
 3. Fix ADC measurements in bq25890 charger driver
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Merge tag 'for-v5.16-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply fixes from Sebastian Reichel:
 "Three fixes for the 5.16 cycle:

   - Avoid going beyond last capacity in the power-supply core

   - Replace 1E6L with NSEC_PER_MSEC to avoid floating point calculation
     in LLVM resulting in a build failure

   - Fix ADC measurements in bq25890 charger driver"

* tag 'for-v5.16-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  power: reset: ltc2952: Fix use of floating point literals
  power: bq25890: Enable continuous conversion for ADC at charging
  power: supply: core: Break capacity loop
2022-01-08 11:39:53 -08:00
Marc Kleine-Budde c5c8859104 can: flexcan: add more quirks to describe RX path capabilities
Most flexcan IP cores support 2 RX modes:
- FIFO
- mailbox

Some IP core versions cannot receive CAN RTR messages via mailboxes.
This patch adds quirks to document this.

This information will be used in a later patch to switch from FIFO to
more performant mailbox mode at the expense of losing the ability to
receive RTR messages. This trade off is beneficial in certain use
cases.

Link: https://lore.kernel.org/all/20220107193105.1699523-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:43 +01:00
Marc Kleine-Budde 34ea4e1c99 can: flexcan: rename RX modes
Most flexcan IP cores support 2 RX modes:
- FIFO
- mailbox

The names for these modes were chosen to reflect the name of the
rx-offload mode they are using.

The name of the RX modes should better reflect their difference with
regards the flexcan IP core. So this patch renames the various
occurrences of OFF_FIFO to RX_FIFO and OFF_TIMESTAMP to RX_MAILBOX:

| FLEXCAN_TX_MB_RESERVED_OFF_FIFO -> FLEXCAN_TX_MB_RESERVED_RX_FIFO
| FLEXCAN_TX_MB_RESERVED_OFF_TIMESTAMP -> FLEXCAN_TX_MB_RESERVED_RX_MAILBOX
| FLEXCAN_QUIRK_USE_OFF_TIMESTAMP -> FLEXCAN_QUIRK_USE_RX_MAILBOX

Link: https://lore.kernel.org/all/20220107193105.1699523-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:43 +01:00
Dario Binacchi 01bb4dccd9 can: flexcan: allow to change quirks at runtime
This is a preparation patch for the upcoming support to change the
rx-rtr capability via the ethtool API.

Link: https://lore.kernel.org/all/20220107193105.1699523-3-mkl@pengutronix.de
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde bfd00e021c can: flexcan: move driver into separate sub directory
This patch moves the flexcan driver into a separate directory, a later
patch will add more files.

Link: https://lore.kernel.org/all/20220107193105.1699523-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 3044a4f271 can: mcp251xfd: introduce and make use of mcp251xfd_is_fd_mode()
This patch replaces the open coded check, if the chip's FIFOs are
configured for CAN-FD mode, by the newly introduced function
mcp251xfd_is_fd_mode().

Link: https://lore.kernel.org/all/20220105154300.1258636-14-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 55bc37c855 can: mcp251xfd: move ring init into separate function
This patch moves the ring initialization from the mcp251xfd core file
into a separate one to make the driver a bit more orderly.

Link: https://lore.kernel.org/all/20220105154300.1258636-13-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 335c818c5a can: mcp251xfd: move chip FIFO init into separate file
This patch moves the chip FIFO initialization from the mcp251xfd core
file into a separate one to make the driver a bit more orderly.

Link: https://lore.kernel.org/all/20220105154300.1258636-12-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 1e846c7aeb can: mcp251xfd: move TEF handling into separate file
This patch moves the TEF handling from the mcp251xfd core file into a
separate one to make the driver a bit more orderly.

Link: https://lore.kernel.org/all/20220105154300.1258636-11-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 09b0eb92fe can: mcp251xfd: move TX handling into separate file
This patch moves the TX handling from the mcp251xfd core file into a
separate one to make the driver a bit more orderly.

Link: https://lore.kernel.org/all/20220105154300.1258636-10-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 319fdbc943 can: mcp251xfd: move RX handling into separate file
This patch moves the RX handling from the mcp251xfd core file into a
separate one to make the driver a bit more orderly.

Link: https://lore.kernel.org/all/20220105154300.1258636-9-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde cae9071bc5 can: mcp251xfd: mcp251xfd.h: sort function prototypes
The .c files in the Makefile are ordered alphabetically. This patch
groups the function prototypes by their corresponding .c file and
brings the into the same order.

Link: https://lore.kernel.org/all/20220105154300.1258636-8-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde 58d0b0a992 can: mcp251xfd: mcp251xfd_handle_rxovif(): denote RX overflow message to debug + add rate limiting
A RX overflow usually happens during high system load. Printing
overflow messages to the kernel log, which on embedded systems often
is outputted on the serial console, even increases the system load.

To decrease the system load in these situations, denote the messages
to debug level and wrap them with net_ratelimit().

Link: https://lore.kernel.org/all/20220105154300.1258636-7-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:42 +01:00
Marc Kleine-Budde d84ca2217b can: mcp251xfd: mcp251xfd_open(): make use of pm_runtime_resume_and_get()
With patch

| dd8088d5a8 PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter

the usual pm_runtime_get_sync() and pm_runtime_put_noidle()
in-case-of-error dance is no longer needed. Convert the mcp251xfd
driver to use this function.

Link: https://lore.kernel.org/all/20220105154300.1258636-6-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Marc Kleine-Budde e91aae8efc can: mcp251xfd: mcp251xfd_open(): open_candev() first
This patch exchanges the order of open_candev() and
pm_runtime_get_sync(), so that open_candev() is called first.

A usual reason why open_candev() fails is missing CAN bit rate
configuration. It makes no sense to resume the device from PM sleep
first just to put it to sleep if the bit rate is not configured.

Link: https://lore.kernel.org/all/20220105154300.1258636-5-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Marc Kleine-Budde 3bd9d8ce6f can: mcp251xfd: add missing newline to printed strings
This patch adds the missing newline to printed strings.

Fixes: 55e5b97f00 ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Link: https://lore.kernel.org/all/20220105154300.1258636-4-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Marc Kleine-Budde 99e7cc3b3f can: mcp251xfd: mcp251xfd_tef_obj_read(): fix typo in error message
This patch fixes a typo in the error message in
mcp251xfd_tef_obj_read(), if trying to read too many objects.

Link: https://lore.kernel.org/all/20220105154300.1258636-3-mkl@pengutronix.de
Fixes: 55e5b97f00 ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Marc Kleine-Budde 2d2116691a can: mcp251xfd: remove double blank lines
This patch removes double blank lines from the driver.

Link: https://lore.kernel.org/all/20220105154300.1258636-2-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Tom Rix c579792562 can: janz-ican3: initialize dlc variable
Clang static analysis reports this problem
janz-ican3.c:1311:2: warning: Undefined or garbage value returned to caller
        return dlc;
        ^~~~~~~~~~

dlc is only set with this conditional
	if (!(cf->can_id & CAN_RTR_FLAG))
		dlc = cf->len;

But is always returned.  So initialize dlc to 0.

Fixes: cc4b08c31b ("can: do not increase tx_bytes statistics for RTR frames")
Link: https://lore.kernel.org/all/20220108143319.3986923-1-trix@redhat.com
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-01-08 20:17:41 +01:00
Linus Torvalds 622e42a674 Fixes for 5.16-rc8:
- Make the old ALLOCSP ioctl behave in a consistent manner with
    newer syscalls like fallocate.
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Merge tag 'xfs-5.16-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fix from Darrick Wong:

 - Make the old ALLOCSP ioctl behave in a consistent manner with newer
   syscalls like fallocate.

* tag 'xfs-5.16-fixes-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: map unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate
2022-01-08 10:56:47 -08:00
Greg Kroah-Hartman 0704a8586f s390/dasd: use default_groups in kobj_type
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the s390 dasd sysfs code to use default_groups field
which has been the preferred way since commit aa30f47cf6 ("kobject:
Add support for default attribute groups to kobj_type") so that we can
soon get rid of the obsolete default_attrs field.

Cc: Stefan Haberland <sth@linux.ibm.com>
Cc: Jan Hoeppner <hoeppner@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220106095401.3274637-1-gregkh@linuxfoundation.org
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-08 17:44:05 +01:00
Greg Kroah-Hartman 1350f36d38 s390/sclp_sd: use default_groups in kobj_type
There are currently 2 ways to create a set of sysfs files for a
kobj_type, through the default_attrs field, and the default_groups
field.  Move the sclp_sd sysfs code to use default_groups field which
has been the preferred way since commit aa30f47cf6 ("kobject: Add
support for default attribute groups to kobj_type") so that we can
soon get rid of the obsolete default_attrs field.

Cc: Vasily Gorbik <gor@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20220106095252.3273905-1-gregkh@linuxfoundation.org
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2022-01-08 17:44:05 +01:00