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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: 42df6e1d221dd ("netfilter: Introduce egress hook")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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>
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>
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>
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>
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>
- 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>
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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>
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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>
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: d08e973a77d1 ("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>
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: 76e9353a80e9 ("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>
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: b1201e44f50b ("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>
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: 03fd3cf5a179 ("can: add driver for Softing card")
Cc: Kurt Van Dijck <dev.kurt@vandijck-laurijssen.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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: 0a0b7a5f7a04 ("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>
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>
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>
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>
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>
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>
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>
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>
With patch
| dd8088d5a896 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>
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>
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: 55e5b97f003e ("can: mcp25xxfd: add driver for Microchip MCP25xxFD SPI CAN")
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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: cc4b08c31b5c ("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>
Arthur Kiyanovski says:
====================
ENA: capabilities field and cosmetic changes
Add a new capabilities bitmask field to get indication of
capabilities supported by the device. Use the capabilities
field to query the device for ENI stats support.
Other patches are cosmetic changes like fixing readme
mistakes, removing unused variables etc...
====================
Link: https://lore.kernel.org/r/20220107202346.3522-1-akiyano@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Create an inline function for resetting the driver
to reduce code duplication.
Signed-off-by: Nati Koler <nkoler@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Changed bad_csum to csum_bad to align with csum_unchecked & csum_good
Signed-off-by: Nati Koler <nkoler@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add qid and req_id to error prints when ENA_REGS_RESET_INV_TX_REQ_ID
reset occurs.
Switch from %hu to %u, since u16 should be printed with %u, as
explained in [1].
[1] - https://www.kernel.org/doc/html/latest/core-api/printk-formats.html
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This struct was used to pass data from callee function to its caller.
Its usage can be avoided.
Removing it results in less code without any damage to code readability.
Also it allows to consolidate ring size calculation into a single
function (ena_calc_io_queue_size()).
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The print that indicates that device reset has finished is
currently called from ena_restore_device().
Move it to ena_fw_reset_device() as it is the more natural
location for it.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The ena_com_indirect_table_fill_entry() function only returns -EINVAL
or 0, no need to check for -EOPNOTSUPP.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
LLQ entry length is 128 bytes. Therefore the maximum header in
the entry is calculated by:
tx_max_header_size =
LLQ_ENTRY_SIZE - DESCRIPTORS_NUM_BEFORE_HEADER * 16 =
128 - 2 * 16 = 96
This patch updates the documentation so that it states the correct
max header length.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use the capabilities field to query the device for ENI stats
support.
This replaces the previous method that tried to get the ENI stats
during ena_probe() and used the success or failure as an indication
for support by the device.
Remove eni_stats_supported field from struct ena_adapter. This field
was used for the previous method of queriying for ENI stats support.
Change the severity level of the print in case of
ena_com_get_eni_stats() failure from info to error.
With the previous method of querying form ENI stats support, failure
to get ENI stats was normal for devices that don't support it.
With the use of the capabilities field such a failure is unexpected,
as it is called only if the device reported that it supports ENI
stats.
Signed-off-by: Shay Agroskin <shayagr@amazon.com>
Signed-off-by: Arthur Kiyanovski <akiyano@amazon.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
