1049967 Commits

Author SHA1 Message Date
Yinjun Zhang
28093e78e0 bpftool: Fix the error when lookup in no-btf maps
[ Upstream commit edc21dc909c6c133a2727f063eadd7907af51f94 ]

When reworking btf__get_from_id() in commit a19f93cfafdf the error
handling when calling bpf_btf_get_fd_by_id() changed. Before the rework
if bpf_btf_get_fd_by_id() failed the error would not be propagated to
callers of btf__get_from_id(), after the rework it is. This lead to a
change in behavior in print_key_value() that now prints an error when
trying to lookup keys in maps with no btf available.

Fix this by following the way used in dumping maps to allow to look up
keys in no-btf maps, by which it decides whether and where to get the
btf info according to the btf value type.

Fixes: a19f93cfafdf ("libbpf: Add internal helper to load BTF data by FD")
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Niklas Söderlund <niklas.soderlund@corigine.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/bpf/1644249625-22479-1-git-send-email-yinjun.zhang@corigine.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:31 +02:00
Pin-Yen Lin
64c06df242 drm/bridge: anx7625: Fix overflow issue on reading EDID
[ Upstream commit d5c6f647aec9ed524aedd04a3aec5ebc21d39007 ]

The length of EDID block can be longer than 256 bytes, so we should use
`int` instead of `u8` for the `edid_pos` variable.

Fixes: 8bdfc5dae4e3 ("drm/bridge: anx7625: Add anx7625 MIPI DSI/DPI to DP")
Signed-off-by: Pin-Yen Lin <treapking@chromium.org>
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220210103827.402436-1-treapking@chromium.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:31 +02:00
Jiasheng Jiang
d6c7f46b8f iommu/ipmmu-vmsa: Check for error num after setting mask
[ Upstream commit 1fdbbfd5099f797a4dac05e7ef0192ba4a9c39b4 ]

Because of the possible failure of the dma_supported(), the
dma_set_mask_and_coherent() may return error num.
Therefore, it should be better to check it and return the error if
fails.

Fixes: 1c894225bf5b ("iommu/ipmmu-vmsa: IPMMU device is 40-bit bus master")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Reviewed-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Link: https://lore.kernel.org/r/20220106024302.2574180-1-jiasheng@iscas.ac.cn
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:31 +02:00
Dmitry Torokhov
b5b2858187 HID: i2c-hid: fix GET/SET_REPORT for unnumbered reports
[ Upstream commit a5e5e03e94764148a01757b2fa4737d3445c13a6 ]

Internally kernel prepends all report buffers, for both numbered and
unnumbered reports, with report ID, therefore to properly handle unnumbered
reports we should prepend it ourselves.

For the same reason we should skip the first byte of the buffer when
calling i2c_hid_set_or_send_report() which then will take care of properly
formatting the transfer buffer based on its separate report ID argument
along with report payload.

[jkosina@suse.cz: finalize trimmed sentence in changelog as spotted by Benjamin]
Fixes: 9b5a9ae88573 ("HID: i2c-hid: implement ll_driver transport-layer callbacks")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Tested-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:31 +02:00
Miaoqian Lin
ffb8e92b4c power: supply: ab8500: Fix memory leak in ab8500_fg_sysfs_init
[ Upstream commit 6a4760463dbc6b603690938c468839985189ce0a ]

kobject_init_and_add() takes reference even when it fails.
According to the doc of kobject_init_and_add():

   If this function returns an error, kobject_put() must be called to
   properly clean up the memory associated with the object.

Fix memory leak by calling kobject_put().

Fixes: 8c0984e5a753 ("power: move power supply drivers to power/supply")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Toke Høiland-Jørgensen
9dea119df0 libbpf: Use dynamically allocated buffer when receiving netlink messages
[ Upstream commit 9c3de619e13ee6693ec5ac74f50b7aa89056a70e ]

When receiving netlink messages, libbpf was using a statically allocated
stack buffer of 4k bytes. This happened to work fine on systems with a 4k
page size, but on systems with larger page sizes it can lead to truncated
messages. The user-visible impact of this was that libbpf would insist no
XDP program was attached to some interfaces because that bit of the netlink
message got chopped off.

Fix this by switching to a dynamically allocated buffer; we borrow the
approach from iproute2 of using recvmsg() with MSG_PEEK|MSG_TRUNC to get
the actual size of the pending message before receiving it, adjusting the
buffer as necessary. While we're at it, also add retries on interrupted
system calls around the recvmsg() call.

v2:
  - Move peek logic to libbpf_netlink_recv(), don't double free on ENOMEM.

Fixes: 8bbb77b7c7a2 ("libbpf: Add various netlink helpers")
Reported-by: Zhiqian Guan <zhguan@redhat.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/bpf/20220211234819.612288-1-toke@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Neil Armstrong
f2a19db2a9 drm/bridge: dw-hdmi: use safe format when first in bridge chain
[ Upstream commit 1528038385c0a706aac9ac165eeb24044fef6825 ]

When the dw-hdmi bridge is in first place of the bridge chain, this
means there is no way to select an input format of the dw-hdmi HW
component.

Since introduction of display-connector, negotiation was broken since
the dw-hdmi negotiation code only worked when the dw-hdmi bridge was
in last position of the bridge chain or behind another bridge also
supporting input & output format negotiation.

Commit 7cd70656d128 ("drm/bridge: display-connector: implement bus fmts callbacks")
was introduced to make negotiation work again by making display-connector
act as a pass-through concerning input & output format negotiation.

But in the case where the dw-hdmi is single in the bridge chain, for
example on Renesas SoCs, with the display-connector bridge the dw-hdmi
is no more single, breaking output format.

Reported-by: Biju Das <biju.das.jz@bp.renesas.com>
Bisected-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Tested-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Fixes: 6c3c719936da ("drm/bridge: synopsys: dw-hdmi: add bus format negociation")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
[narmstrong: add proper fixes commit]
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220204143337.89221-1-narmstrong@baylibre.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Andrii Nakryiko
2f0949db6e libbpf: Fix compilation warning due to mismatched printf format
[ Upstream commit dc37dc617fabfb1c3a16d49f5d8cc20e9e3608ca ]

On ppc64le architecture __s64 is long int and requires %ld. Cast to
ssize_t and use %zd to avoid architecture-specific specifiers.

Fixes: 4172843ed4a3 ("libbpf: Fix signedness bug in btf_dump_array_data()")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220209063909.1268319-1-andrii@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Po Liu
0255e93dce net:enetc: allocate CBD ring data memory using DMA coherent methods
[ Upstream commit b3a723dbc94a6e38f67669d03b521edd766ad895 ]

To replace the dma_map_single() stream DMA mapping with DMA coherent
method dma_alloc_coherent() which is more simple.

dma_map_single() found by Tim Gardner not proper. Suggested by Claudiu
Manoil and Jakub Kicinski to use dma_alloc_coherent(). Discussion at:

https://lore.kernel.org/netdev/AM9PR04MB8397F300DECD3C44D2EBD07796BD9@AM9PR04MB8397.eurprd04.prod.outlook.com/t/

Fixes: 888ae5a3952ba ("net: enetc: add tc flower psfp offload driver")
cc: Claudiu Manoil <claudiu.manoil@nxp.com>
Reported-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Jonathan Cameron
721992163e cxl/regs: Fix size of CXL Capability Header Register
[ Upstream commit 74b0fe80409733055971bbfaf33c80a33fddeeb3 ]

In CXL 2.0, 8.2.5.1 CXL Capability Header Register: this register
is given as 32 bits.

8.2.3 which covers the CXL 2.0 Component registers, including the
CXL Capability Header Register states that access restrictions
specified in Section 8.2.2 apply.

8.2.2 includes:
* A 32 bit register shall be accessed as a 4 Byte quantity.
...
If these rules are not followed, the behavior is undefined.

Discovered during review of CXL QEMU emulation. Alex Bennée pointed
out there was a comment saying that 4 byte registers must be read
with a 4 byte read, but 8 byte reads were being emulated.

https://lore.kernel.org/qemu-devel/87bkzyd3c7.fsf@linaro.org/

Fixing that, led to this code failing. Whilst a given hardware
implementation 'might' work with an 8 byte read, it should not be relied
upon. The QEMU emulation v5 will return 0 and log the wrong access width.

The code moved, so one fixes tag for where this will directly apply and
also a reference to the earlier introduction of the code for backports.

Fixes: 0f06157e0135 ("cxl/core: Move register mapping infrastructure")
Fixes: 08422378c4ad ("cxl/pci: Add HDM decoder capabilities")
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Ben Widawsky <ben.widawsky@intel.com>
Link: https://lore.kernel.org/r/20220201153437.2873-1-Jonathan.Cameron@huawei.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Dan Williams
0e348f9478 cxl/core: Fix cxl_probe_component_regs() error message
[ Upstream commit d621bc2e7282f9955033a6359877fd4ac4be60e1 ]

Fix a '\n' vs '/n' typo.

Fixes: 08422378c4ad ("cxl/pci: Add HDM decoder capabilities")
Acked-by: Ben Widawsky <ben.widawsky@intel.com
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/164298418268.3018233.17790073375430834911.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Dan Carpenter
855f1c64e2 libbpf: Fix signedness bug in btf_dump_array_data()
[ Upstream commit 4172843ed4a38f97084032f74f07b2037b5da3a6 ]

The btf__resolve_size() function returns negative error codes so
"elem_size" must be signed for the error handling to work.

Fixes: 920d16af9b42 ("libbpf: BTF dumper support for typed data")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20220208071552.GB10495@kili
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Xiao Yang
cdb2150050 RDMA/rxe: Check the last packet by RXE_END_MASK
[ Upstream commit b1377cc37f6bebd57ce8747b7e16163a475af295 ]

It's wrong to check the last packet by RXE_COMP_MASK because the flag is
to indicate if responder needs to generate a completion.

Fixes: 9fcd67d1772c ("IB/rxe: increment msn only when completing a request")
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20211229034438.1854908-1-yangx.jy@fujitsu.com
Signed-off-by: Xiao Yang <yangx.jy@fujitsu.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Pali Rohár
ed750e22e4 PCI: aardvark: Fix reading PCI_EXP_RTSTA_PME bit on emulated bridge
[ Upstream commit 735f5ae49e1b44742cc63ca9b5c1ffde3e94ba91 ]

The emulated bridge returns incorrect value for PCI_EXP_RTSTA register
during readout in advk_pci_bridge_emul_pcie_conf_read() function: the
correct bit is BIT(16), but we are setting BIT(23), because the code
does
  *value = (isr0 & PCIE_MSG_PM_PME_MASK) << 16
where
  PCIE_MSG_PM_PME_MASK
is
  BIT(7).

The code should probably have been something like
  *value = (!!(isr0 & PCIE_MSG_PM_PME_MASK)) << 16,
but we are better of using an if() and using the proper macro for this
bit.

Link: https://lore.kernel.org/r/20220110015018.26359-15-kabel@kernel.org
Fixes: 8a3ebd8de328 ("PCI: aardvark: Implement emulated root PCI bridge config space")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:30 +02:00
Pali Rohár
0fe94b84c4 PCI: aardvark: Fix reading MSI interrupt number
[ Upstream commit 805dfc18dd3d4dd97a987d4406593b5a225b1253 ]

In advk_pcie_handle_msi() it is expected that when bit i in the W1C
register PCIE_MSI_STATUS_REG is cleared, the PCIE_MSI_PAYLOAD_REG is
updated to contain the MSI number corresponding to index i.

Experiments show that this is not so, and instead PCIE_MSI_PAYLOAD_REG
always contains the number of the last received MSI, overall.

Do not read PCIE_MSI_PAYLOAD_REG register for determining MSI interrupt
number. Since Aardvark already forbids more than 32 interrupts and uses
own allocated hwirq numbers, the msi_idx already corresponds to the
received MSI number.

Link: https://lore.kernel.org/r/20220110015018.26359-3-kabel@kernel.org
Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver")
Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Corinna Vinschen
1f0add37ac igb: refactor XDP registration
[ Upstream commit e62ad74aa534404b3ee7e250b114a3536ac56987 ]

On changing the RX ring parameters igb uses a hack to avoid a warning
when calling xdp_rxq_info_reg via igb_setup_rx_resources.  It just
clears the struct xdp_rxq_info content.

Instead, change this to unregister if we're already registered.  Align
code to the igc code.

Fixes: 9cbc948b5a20c ("igb: add XDP support")
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Corinna Vinschen
ab8c107470 igc: avoid kernel warning when changing RX ring parameters
[ Upstream commit 453307b569a0d41bddd07f26bf41b784cd82a4c9 ]

Calling ethtool changing the RX ring parameters like this:

  $ ethtool -G eth0 rx 1024

on igc triggers kernel warnings like this:

[  225.198467] ------------[ cut here ]------------
[  225.198473] Missing unregister, handled but fix driver
[  225.198485] WARNING: CPU: 7 PID: 959 at net/core/xdp.c:168
xdp_rxq_info_reg+0x79/0xd0
[...]
[  225.198601] Call Trace:
[  225.198604]  <TASK>
[  225.198609]  igc_setup_rx_resources+0x3f/0xe0 [igc]
[  225.198617]  igc_ethtool_set_ringparam+0x30e/0x450 [igc]
[  225.198626]  ethnl_set_rings+0x18a/0x250
[  225.198631]  genl_family_rcv_msg_doit+0xca/0x110
[  225.198637]  genl_rcv_msg+0xce/0x1c0
[  225.198640]  ? rings_prepare_data+0x60/0x60
[  225.198644]  ? genl_get_cmd+0xd0/0xd0
[  225.198647]  netlink_rcv_skb+0x4e/0xf0
[  225.198652]  genl_rcv+0x24/0x40
[  225.198655]  netlink_unicast+0x20e/0x330
[  225.198659]  netlink_sendmsg+0x23f/0x480
[  225.198663]  sock_sendmsg+0x5b/0x60
[  225.198667]  __sys_sendto+0xf0/0x160
[  225.198671]  ? handle_mm_fault+0xb2/0x280
[  225.198676]  ? do_user_addr_fault+0x1eb/0x690
[  225.198680]  __x64_sys_sendto+0x20/0x30
[  225.198683]  do_syscall_64+0x38/0x90
[  225.198687]  entry_SYSCALL_64_after_hwframe+0x44/0xae
[  225.198693] RIP: 0033:0x7f7ae38ac3aa

igc_ethtool_set_ringparam() copies the igc_ring structure but neglects to
reset the xdp_rxq_info member before calling igc_setup_rx_resources().
This in turn calls xdp_rxq_info_reg() with an already registered xdp_rxq_info.

Make sure to unregister the xdp_rxq_info structure first in
igc_setup_rx_resources.

Fixes: 73f1071c1d29 ("igc: Add support for XDP_TX action")
Reported-by: Lennert Buytenhek <buytenh@arista.com>
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>
Acked-by: Vinicius Costa Gomes <vinicius.gomes@intel.com>
Tested-by: Dvora Fuxbrumer <dvorax.fuxbrumer@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Mark Brown
ea6b04796c mtd: mchp48l640: Add SPI ID table
[ Upstream commit 69a6d06878f05d63673b0dcdc3c3ef1af2996d46 ]

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220202143404.16070-4-broonie@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Mark Brown
21e78798b2 mtd: mchp23k256: Add SPI ID table
[ Upstream commit bc7ee2e34b219da6813c17a1680dd20766648883 ]

Currently autoloading for SPI devices does not use the DT ID table, it uses
SPI modalises. Supporting OF modalises is going to be difficult if not
impractical, an attempt was made but has been reverted, so ensure that
module autoloading works for this driver by adding an id_table listing the
SPI IDs for everything.

Fixes: 96c8395e2166 ("spi: Revert modalias changes")
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220202143404.16070-3-broonie@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Christophe JAILLET
0eec5e2748 i2c: bcm2835: Fix the error handling in 'bcm2835_i2c_probe()'
[ Upstream commit b205f5850263632b6897d8f0bfaeeea4955f8663 ]

Some resource should be released if an error occurs in
'bcm2835_i2c_probe()'.
Add an error handling path and the needed 'clk_disable_unprepare()' and
'clk_rate_exclusive_put()' calls.

While at it, rework the bottom of the function to use this newly added
error handling path and have an explicit and more standard "return 0;" at
the end of the normal path.

Fixes: bebff81fb8b9 ("i2c: bcm2835: Model Divider in CCF")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
[wsa: rebased]
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Lad Prabhakar
0b01811fc1 i2c: bcm2835: Use platform_get_irq() to get the interrupt
[ Upstream commit c3b2f911ac11892b672df7829becf28d3a830073 ]

platform_get_resource(pdev, IORESOURCE_IRQ, ..) relies on static
allocation of IRQ resources in DT core code, this causes an issue
when using hierarchical interrupt domains using "interrupts" property
in the node as this bypasses the hierarchical setup and messes up the
irq chaining.

In preparation for removal of static setup of IRQ resource from DT core
code use platform_get_irq().

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Pavel Skripkin
b96a7265f7 net: asix: add proper error handling of usb read errors
[ Upstream commit 920a9fa27e7805499cfe78491b36fed2322c02ec ]

Syzbot once again hit uninit value in asix driver. The problem still the
same -- asix_read_cmd() reads less bytes, than was requested by caller.

Since all read requests are performed via asix_read_cmd() let's catch
usb related error there and add __must_check notation to be sure all
callers actually check return value.

So, this patch adds sanity check inside asix_read_cmd(), that simply
checks if bytes read are not less, than was requested and adds missing
error handling of asix_read_cmd() all across the driver code.

Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter")
Reported-and-tested-by: syzbot+6ca9f7867b77c2d316ac@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Christophe Leroy
b997cfdc3f livepatch: Fix build failure on 32 bits processors
[ Upstream commit 2f293651eca3eacaeb56747dede31edace7329d2 ]

Trying to build livepatch on powerpc/32 results in:

	kernel/livepatch/core.c: In function 'klp_resolve_symbols':
	kernel/livepatch/core.c:221:23: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	  221 |                 sym = (Elf64_Sym *)sechdrs[symndx].sh_addr + ELF_R_SYM(relas[i].r_info);
	      |                       ^
	kernel/livepatch/core.c:221:21: error: assignment to 'Elf32_Sym *' {aka 'struct elf32_sym *'} from incompatible pointer type 'Elf64_Sym *' {aka 'struct elf64_sym *'} [-Werror=incompatible-pointer-types]
	  221 |                 sym = (Elf64_Sym *)sechdrs[symndx].sh_addr + ELF_R_SYM(relas[i].r_info);
	      |                     ^
	kernel/livepatch/core.c: In function 'klp_apply_section_relocs':
	kernel/livepatch/core.c:312:35: error: passing argument 1 of 'klp_resolve_symbols' from incompatible pointer type [-Werror=incompatible-pointer-types]
	  312 |         ret = klp_resolve_symbols(sechdrs, strtab, symndx, sec, sec_objname);
	      |                                   ^~~~~~~
	      |                                   |
	      |                                   Elf32_Shdr * {aka struct elf32_shdr *}
	kernel/livepatch/core.c:193:44: note: expected 'Elf64_Shdr *' {aka 'struct elf64_shdr *'} but argument is of type 'Elf32_Shdr *' {aka 'struct elf32_shdr *'}
	  193 | static int klp_resolve_symbols(Elf64_Shdr *sechdrs, const char *strtab,
	      |                                ~~~~~~~~~~~~^~~~~~~

Fix it by using the right types instead of forcing 64 bits types.

Fixes: 7c8e2bdd5f0d ("livepatch: Apply vmlinux-specific KLP relocations early")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Acked-by: Petr Mladek <pmladek@suse.com>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Acked-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/5288e11b018a762ea3351cc8fb2d4f15093a4457.1640017960.git.christophe.leroy@csgroup.eu
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Thomas Bracht Laumann Jespersen
34bed8dae1 scripts/dtc: Call pkg-config POSIXly correct
[ Upstream commit a8b309ce9760943486e0585285e0125588a31650 ]

Running with POSIXLY_CORRECT=1 in the environment the scripts/dtc build
fails, because pkg-config doesn't output anything when the flags come
after the arguments.

Fixes: 067c650c456e ("dtc: Use pkg-config to locate libyaml")
Signed-off-by: Thomas Bracht Laumann Jespersen <t@laumann.xyz>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220131112028.7907-1-t@laumann.xyz
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:29 +02:00
Johannes Berg
0aec294f2d mac80211: limit bandwidth in HE capabilities
[ Upstream commit 1f2c104448477512fcf7296df54bfbc3a6f9a765 ]

If we're limiting bandwidth for some reason such as regulatory
restrictions, then advertise that limitation just like we do
for VHT today, so the AP is aware we cannot use the higher BW
it might be using.

Fixes: 41cbb0f5a295 ("mac80211: add support for HE")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20220202104617.70c8e3e7ee76.If317630de69ff1146bec7d47f5b83038695eb71d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Ilan Peer
a41efae062 mac80211: Remove a couple of obsolete TODO
[ Upstream commit cee04f3c3a00ffd2a2a6ed1028e0ab58a3a28d25 ]

The HE capability IE is an extension IE so remove
an irrelevant comments.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20211129152938.550b95b5fca7.Ia31395e880172aefcc0a8c70ed060f84b94bdb83@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Tobias Waldekranz
5ad6b337e4 net: dsa: mv88e6xxx: Enable port policy support on 6097
[ Upstream commit 585d42bb57bb358d48906660a8de273b078810b1 ]

This chip has support for the same per-port policy actions found in
later versions of LinkStreet devices.

Fixes: f3a2cd326e44 ("net: dsa: mv88e6xxx: introduce .port_set_policy")
Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Miroslav Lichvar
b2dea2a696 ptp: unregister virtual clocks when unregistering physical clock.
[ Upstream commit bfcbb76b0f595ea9ede9f7a218086fef85242f10 ]

When unregistering a physical clock which has some virtual clocks,
unregister the virtual clocks with it.

This fixes the following oops, which can be triggered by unloading
a driver providing a PTP clock when it has enabled virtual clocks:

BUG: unable to handle page fault for address: ffffffffc04fc4d8
Oops: 0000 [#1] PREEMPT SMP NOPTI
RIP: 0010:ptp_vclock_read+0x31/0xb0
Call Trace:
 timecounter_read+0xf/0x50
 ptp_vclock_refresh+0x2c/0x50
 ? ptp_clock_release+0x40/0x40
 ptp_aux_kworker+0x17/0x30
 kthread_worker_fn+0x9b/0x240
 ? kthread_should_park+0x30/0x30
 kthread+0xe2/0x110
 ? kthread_complete_and_exit+0x20/0x20
 ret_from_fork+0x22/0x30

Fixes: 73f37068d540 ("ptp: support ptp physical/virtual clocks conversion")
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Acked-by: Richard Cochran <richardcochran@gmail.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Cc: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
a53c147ac4 mt76: mt7615: check sta_rates pointer in mt7615_sta_rate_tbl_update
[ Upstream commit 6a6f457ed5fdf6777536c20644a9e42128a50ec2 ]

Check sta_rates pointer value in mt7615_sta_rate_tbl_update routine
since minstrel_ht_update_rates can fail allocating rates array.

Fixes: 04b8e65922f63 ("mt76: add mac80211 driver for MT7615 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
fd1fcad5c0 mt76: mt7603: check sta_rates pointer in mt7603_sta_rate_tbl_update
[ Upstream commit fc8e2c707ce11c8ec2e992885b0d53a5e04031ac ]

Check sta_rates pointer value in mt7603_sta_rate_tbl_update routine
since minstrel_ht_update_rates can fail allocating rates array.

Fixes: c8846e1015022 ("mt76: add driver for MT7603E and MT7628/7688")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
443cb1bc8a mt76: mt7615: fix a leftover race in runtime-pm
[ Upstream commit 42ce8d3b623162f3248db50a38359f294e6b06fd ]

Fix a possible race in mt7615_pm_power_save_work() if rx/tx napi
schedules ps_work and we are currently accessing device register
on a different cpu.

Fixes: db928f1ab9789 ("mt76: mt7663: rely on mt76_connac_pm_ref/mt76_connac_pm_unref in tx/rx napi")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
421cb64c91 mt76: mt7921: fix a leftover race in runtime-pm
[ Upstream commit 591cdccebdd4d02eb46d400dea911136400cc567 ]

Fix a possible race in mt7921_pm_power_save_work() if rx/tx napi
schedules ps_work and we are currently accessing device register
on a different cpu.

Fixes: 1d8efc741df8 ("mt76: mt7921: introduce Runtime PM support")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
0f3d76144b mt76: mt7915: use proper aid value in mt7915_mcu_sta_basic_tlv
[ Upstream commit abdb8bc94be4cf68aa71c9a8ee0bad9b3e6f52d3 ]

Similar to mt7915_mcu_wtbl_generic_tlv, rely on vif->bss_conf.aid for
aid in sta mode and not on sta->aid.

Fixes: e57b7901469fc ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
60d815fd43 mt76: mt7915: use proper aid value in mt7915_mcu_wtbl_generic_tlv in sta mode
[ Upstream commit a56b1b0f145ef2d6bb9312dedf3ab8558ef50a5b ]

mac80211 provides aid in vif->bss_conf.aid for sta mode and not in
sta->aid. Fix mt7915_mcu_wtbl_generic_tlv routine using proper value for
aid in sta mode.

Fixes: e57b7901469fc ("mt76: add mac80211 driver for MT7915 PCIe-based chipsets")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:28 +02:00
Lorenzo Bianconi
203a1e1230 mt76: connac: fix sta_rec_wtbl tag len
[ Upstream commit 74c337ec0905d99111fc63a15f2e0784b9ed5503 ]

Similar to mt7915 driver, fix tag len error for sta_rec_wtbl, which
causes fw parsing error for the tags placed behind it.

Fixes: d0e274af2f2e4 ("mt76: mt76_connac: create mcu library")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Athira Rajeev
94fd8a2a47 powerpc/perf: Don't use perf_hw_context for trace IMC PMU
[ Upstream commit 0198322379c25215b2778482bf1221743a76e2b5 ]

Trace IMC (In-Memory collection counters) in powerpc is useful for
application level profiling.

For trace_imc, presently task context (task_ctx_nr) is set to
perf_hw_context. But perf_hw_context should only be used for CPU PMU.
See commit 26657848502b ("perf/core: Verify we have a single
perf_hw_context PMU").

So for trace_imc, even though it is per thread PMU, it is preferred to
use sw_context in order to be able to do application level monitoring.
Hence change the task_ctx_nr to use perf_sw_context.

Fixes: 012ae244845f ("powerpc/perf: Trace imc PMU functions")
Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Update subject & incorporate notes into change log, reflow comment]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220202041837.65968-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Fabiano Rosas
0dc750479a KVM: PPC: Book3S HV: Check return value of kvmppc_radix_init
[ Upstream commit 69ab6ac380a00244575de02c406dcb9491bf3368 ]

The return of the function is being shadowed by the call to
kvmppc_uvmem_init.

Fixes: ca9f4942670c ("KVM: PPC: Book3S HV: Support for running secure guests")
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220125155735.1018683-2-farosas@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Maxim Kiselev
10686b0280 powerpc: dts: t1040rdb: fix ports names for Seville Ethernet switch
[ Upstream commit 5ebb74749202a25da4b3cc2eb15470225a05527c ]

On board rev A, the network interface labels for the switch ports
written on the front panel are different than on rev B and later.

This patch fixes network interface names for the switch ports according
to labels that are written on the front panel of the board rev B.
They start from ETH3 and end at ETH10.

This patch also introduces a separate device tree for rev A.
The main device tree is supposed to cover rev B and later.

Fixes: e69eb0824d8c ("powerpc: dts: t1040rdb: add ports for Seville Ethernet switch")
Signed-off-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Maxim Kochetkov <fido_max@inbox.ru>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220121091447.3412907-1-bigunclemax@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Jiasheng Jiang
9acf7c2f31 ray_cs: Check ioremap return value
[ Upstream commit 7e4760713391ee46dc913194b33ae234389a174e ]

As the possible failure of the ioremap(), the 'local->sram' and other
two could be NULL.
Therefore it should be better to check it in order to avoid the later
dev_dbg.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20211230022926.1846757-1-jiasheng@iscas.ac.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Miaoqian Lin
3a4bcc4cb6 power: reset: gemini-poweroff: Fix IRQ check in gemini_poweroff_probe
[ Upstream commit ba18dad0fb880cd29aa97b6b75560ef14d1061ba ]

platform_get_irq() returns negative error number instead 0 on failure.
And the doc of platform_get_irq() provides a usage example:

    int irq = platform_get_irq(pdev, 0);
    if (irq < 0)
        return irq;

Fix the check of return value to catch errors correctly.

Fixes: f7a388d6cd1c ("power: reset: Add a driver for the Gemini poweroff")
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Alexander Lobakin
cb42b6cfc5 ixgbe: respect metadata on XSK Rx to skb
[ Upstream commit f322a620be69e95594eda89502b478aa7dbf6ec2 ]

For now, if the XDP prog returns XDP_PASS on XSK, the metadata
will be lost as it doesn't get copied to the skb.

Copy it along with the frame headers. Account its size on skb
allocation, and when copying just treat it as a part of the frame
and do a pull after to "move" it to the "reserved" zone.

net_prefetch() xdp->data_meta and align the copy size to speed-up
memcpy() a little and better match ixgbe_construct_skb().

Fixes: d0bcacd0a130 ("ixgbe: add AF_XDP zero-copy Rx support")
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Alexander Lobakin
8c072b8e32 ixgbe: don't reserve excessive XDP_PACKET_HEADROOM on XSK Rx to skb
[ Upstream commit 8f405221a73a53234486c185d8ef647377a53cc6 ]

{__,}napi_alloc_skb() allocates and reserves additional NET_SKB_PAD
+ NET_IP_ALIGN for any skb.
OTOH, ixgbe_construct_skb_zc() currently allocates and reserves
additional `xdp->data - xdp->data_hard_start`, which is
XDP_PACKET_HEADROOM for XSK frames.
There's no need for that at all as the frame is post-XDP and will
go only to the networking stack core.
Pass the size of the actual data only to __napi_alloc_skb() and
don't reserve anything. This will give enough headroom for stack
processing.

Fixes: d0bcacd0a130 ("ixgbe: add AF_XDP zero-copy Rx support")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Alexander Lobakin
6dc1822697 ixgbe: pass bi->xdp to ixgbe_construct_skb_zc() directly
[ Upstream commit 1fbdaa13386804a31eefd3db3c5fe00e80ce9bc3 ]

To not dereference bi->xdp each time in ixgbe_construct_skb_zc(),
pass bi->xdp as an argument instead of bi. We can also call
xsk_buff_free() outside of the function as well as assign bi->xdp
to NULL, which seems to make it closer to its name.

Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Tested-by: Sandeep Penigalapati <sandeep.penigalapati@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Alexander Lobakin
28e561f366 igc: don't reserve excessive XDP_PACKET_HEADROOM on XSK Rx to skb
[ Upstream commit f9e61d365bafdee40fe2586fc6be490c3e824dad ]

{__,}napi_alloc_skb() allocates and reserves additional NET_SKB_PAD
+ NET_IP_ALIGN for any skb.
OTOH, igc_construct_skb_zc() currently allocates and reserves
additional `xdp->data_meta - xdp->data_hard_start`, which is about
XDP_PACKET_HEADROOM for XSK frames.
There's no need for that at all as the frame is post-XDP and will
go only to the networking stack core.
Pass the size of the actual data only (+ meta) to
__napi_alloc_skb() and don't reserve anything. This will give
enough headroom for stack processing.
Also, net_prefetch() xdp->data_meta and align the copy size to
speed-up memcpy() a little and better match igc_construct_skb().

Fixes: fc9df2a0b520 ("igc: Enable RX via AF_XDP zero-copy")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Nechama Kraus <nechamax.kraus@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:27 +02:00
Alexander Lobakin
0e2f6a7f59 i40e: respect metadata on XSK Rx to skb
[ Upstream commit 6dba29537c0f639b482bd8f8bbd50ab4ae74b48d ]

For now, if the XDP prog returns XDP_PASS on XSK, the metadata will
be lost as it doesn't get copied to the skb.

Copy it along with the frame headers. Account its size on skb
allocation, and when copying just treat it as a part of the frame
and do a pull after to "move" it to the "reserved" zone.

net_prefetch() xdp->data_meta and align the copy size to speed-up
memcpy() a little and better match i40e_construct_skb().

Fixes: 0a714186d3c0 ("i40e: add AF_XDP zero-copy Rx support")
Suggested-by: Jesper Dangaard Brouer <brouer@redhat.com>
Suggested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00
Alexander Lobakin
968c76e96a i40e: don't reserve excessive XDP_PACKET_HEADROOM on XSK Rx to skb
[ Upstream commit bc97f9c6f988b31b728eb47a94ca825401dbeffe ]

{__,}napi_alloc_skb() allocates and reserves additional NET_SKB_PAD
+ NET_IP_ALIGN for any skb.
OTOH, i40e_construct_skb_zc() currently allocates and reserves
additional `xdp->data - xdp->data_hard_start`, which is
XDP_PACKET_HEADROOM for XSK frames.
There's no need for that at all as the frame is post-XDP and will
go only to the networking stack core.
Pass the size of the actual data only to __napi_alloc_skb() and
don't reserve anything. This will give enough headroom for stack
processing.

Fixes: 0a714186d3c0 ("i40e: add AF_XDP zero-copy Rx support")
Signed-off-by: Alexander Lobakin <alexandr.lobakin@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Tested-by: Kiran Bhandare <kiranx.bhandare@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00
Gerhard Engleder
7ad4f7729f selftests/net: timestamping: Fix bind_phc check
[ Upstream commit 678dfd5280341d877ca646499bfdc82a3d8b4356 ]

timestamping checks socket options during initialisation. For the field
bind_phc of the socket option SO_TIMESTAMPING it expects the value -1 if
PHC is not bound. Actually the value of bind_phc is 0 if PHC is not
bound. This results in the following output:

SIOCSHWTSTAMP: tx_type 0 requested, got 0; rx_filter 0 requested, got 0
SO_TIMESTAMP 0
SO_TIMESTAMPNS 0
SO_TIMESTAMPING flags 0, bind phc 0
   not expected, flags 0, bind phc -1

This is fixed by setting default value and expected value of bind_phc to
0.

Fixes: 2214d7032479 ("selftests/net: timestamping: support binding PHC")
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00
Fabiano Rosas
5bedd66a59 KVM: PPC: Fix vmx/vsx mixup in mmio emulation
[ Upstream commit b99234b918c6e36b9aa0a5b2981e86b6bd11f8e2 ]

The MMIO emulation code for vector instructions is duplicated between
VSX and VMX. When emulating VMX we should check the VMX copy size
instead of the VSX one.

Fixes: acc9eb9305fe ("KVM: PPC: Reimplement LOAD_VMX/STORE_VMX instruction ...")
Signed-off-by: Fabiano Rosas <farosas@linux.ibm.com>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220125215655.1026224-3-farosas@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00
Maor Gottlieb
72c179f650 RDMA/core: Set MR type in ib_reg_user_mr
[ Upstream commit 32a88d16615c2be295571c29273c4ac94cb75309 ]

Add missing assignment of MR type to IB_MR_TYPE_USER.

Fixes: 33006bd4f37f ("IB/core: Introduce ib_reg_user_mr")
Link: https://lore.kernel.org/r/be2e91bcd6e52dc36be289ae92f30d3a5cc6dcb1.1642491047.git.leonro@nvidia.com
Signed-off-by: Maor Gottlieb <maorg@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00
Pavel Skripkin
0b700f7d06 ath9k_htc: fix uninit value bugs
[ Upstream commit d1e0df1c57bd30871dd1c855742a7c346dbca853 ]

Syzbot reported 2 KMSAN bugs in ath9k. All of them are caused by missing
field initialization.

In htc_connect_service() svc_meta_len and pad are not initialized. Based
on code it looks like in current skb there is no service data, so simply
initialize svc_meta_len to 0.

htc_issue_send() does not initialize htc_frame_hdr::control array. Based
on firmware code, it will initialize it by itself, so simply zero whole
array to make KMSAN happy

Fail logs:

BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
 hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
 htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...

Bytes 4-7 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00

BUG: KMSAN: kernel-usb-infoleak in usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 usb_submit_urb+0x6c1/0x2aa0 drivers/usb/core/urb.c:430
 hif_usb_send_regout drivers/net/wireless/ath/ath9k/hif_usb.c:127 [inline]
 hif_usb_send+0x5f0/0x16f0 drivers/net/wireless/ath/ath9k/hif_usb.c:479
 htc_issue_send drivers/net/wireless/ath/ath9k/htc_hst.c:34 [inline]
 htc_connect_service+0x143e/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:275
...

Uninit was created at:
 slab_post_alloc_hook mm/slab.h:524 [inline]
 slab_alloc_node mm/slub.c:3251 [inline]
 __kmalloc_node_track_caller+0xe0c/0x1510 mm/slub.c:4974
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0x545/0xf90 net/core/skbuff.c:426
 alloc_skb include/linux/skbuff.h:1126 [inline]
 htc_connect_service+0x1029/0x1960 drivers/net/wireless/ath/ath9k/htc_hst.c:258
...

Bytes 16-17 of 18 are uninitialized
Memory access of size 18 starts at ffff888027377e00

Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.")
Reported-by: syzbot+f83a1df1ed4f67e8d8ad@syzkaller.appspotmail.com
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220115122733.11160-1-paskripkin@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-04-08 14:23:26 +02:00