Commit Graph

142998 Commits

Author SHA1 Message Date
Sean Anderson
914f8b228e soc: fsl: qbman: Add CGR update function
This adds a function to update a CGR with new parameters. qman_create_cgr
can almost be used for this (with flags=0), but it's not suitable because
it also registers the callback function. The _safe variant was modeled off
of qman_cgr_delete_safe. However, we handle multiple arguments and a return
value.

Signed-off-by: Sean Anderson <sean.anderson@seco.com>
Acked-by: Camelia Groza <camelia.groza@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 14:27:39 +01:00
Leon Romanovsky
d324a46be3 Merge branch 'mlx5-next' into wip/leon-for-next
Perform merge of Mellanox shared branch.

* mlx5-next:
  RDMA/mlx5: Move function mlx5_core_query_ib_ppcnt() to mlx5_ib
2022-09-05 15:09:55 +03:00
Chris Mi
8a2dd123f1 RDMA/mlx5: Move function mlx5_core_query_ib_ppcnt() to mlx5_ib
This patch doesn't change any functionality, but move one function
to mlx5_ib because it is not used by mlx5_core.

The actual fix is in the next patch.

Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Chris Mi <cmi@nvidia.com>
Link: https://lore.kernel.org/r/fd47b9138412bd94ed30f838026cbb4cf3878150.1661763871.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-09-05 15:09:03 +03:00
Maher Sanalla
9ca05b0f27 RDMA/mlx5: Rely on RoCE fw cap instead of devlink when setting profile
When the RDMA auxiliary driver probes, it sets its profile based on
devlink driverinit value. The latter might not be in sync with FW yet
(In case devlink reload is not performed), thus causing a mismatch
between RDMA driver and FW. This results in the following FW syndrome
when the RDMA driver tries to adjust RoCE state, which fails the probe:

"0xC1F678 | modify_nic_vport_context: roce_en set on a vport that
doesn't support roce"

To prevent this, select the PF profile based on FW RoCE capability
instead of relying on devlink driverinit value.
To provide backward compatibility of the RoCE disable feature, on older
FW's where roce_rw is not set (FW RoCE capability is read-only), keep
the current behavior e.g., rely on devlink driverinit value.

Fixes: fbfa97b4d7 ("net/mlx5: Disable roce at HCA level")
Reviewed-by: Shay Drory <shayd@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Maher Sanalla <msanalla@nvidia.com>
Link: https://lore.kernel.org/r/cb34ce9a1df4a24c135cb804db87f7d2418bd6cc.1661763459.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2022-09-05 14:49:46 +03:00
Greg Kroah-Hartman
dec9b2f1e0 debugfs: add debugfs_lookup_and_remove()
There is a very common pattern of using
debugfs_remove(debufs_lookup(..)) which results in a dentry leak of the
dentry that was looked up.  Instead of having to open-code the correct
pattern of calling dput() on the dentry, create
debugfs_lookup_and_remove() to handle this pattern automatically and
properly without any memory leaks.

Cc: stable <stable@kernel.org>
Reported-by: Kuyo Chang <kuyo.chang@mediatek.com>
Tested-by: Kuyo Chang <kuyo.chang@mediatek.com>
Link: https://lore.kernel.org/r/YxIaQ8cSinDR881k@kroah.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05 13:02:34 +02:00
Jagan Teki
daf7dc8651 dt-bindings: power: Add power-domain header for RV1126
Add power-domain header for RV1126 SoC from description in TRM.

Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20220818124132.125304-2-jagan@edgeble.ai
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-09-05 11:52:25 +02:00
Maxime Chevallier
4a502cf4d7 net: pcs: add new PCS driver for altera TSE PCS
The Altera Triple Speed Ethernet has a SGMII/1000BaseC PCS that can be
integrated in several ways. It can either be part of the TSE MAC's
address space, accessed through 32 bits accesses on the mapped mdio
device 0, or through a dedicated 16 bits register set.

This driver allows using the TSE PCS outside of altera TSE's driver,
since it can be used standalone by other MACs.

Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-05 10:16:53 +01:00
Hans de Goede
76fba1221e Merge tag 'backlight-detect-refactor-1' into review-hans
Immutable backlight-detect-refactor branch between acpi, drm-* and pdx86

Tag (immutable branch) with v6.0-rc1 + the (acpi/x86) backlight
detect refactor work. For merging into the acpi, drm-* and pdx86
subsystems.
2022-09-05 11:01:56 +02:00
Christophe Leroy
7245fc5bb7 powerpc/math-emu: Remove -w build flag and fix warnings
As reported by Nathan, the module_init() macro was not taken into
account because the header was missing. That means spe_mathemu_init()
was never called.

This should have been detected by gcc at build time, but due to
'-w' flag it went undetected.

Removing that flag leads to many warnings hence errors.

Fix those warnings then remove the -w flag.

Reported-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/2663961738a46073713786d4efeb53100ca156e7.1662134272.git.christophe.leroy@csgroup.eu
2022-09-05 17:28:25 +10:00
Greg Kroah-Hartman
a956f91247 Merge 6.0-rc4 into usb-next
We need the USB fixes in here and this resolves the merge issue in:
	drivers/usb/dwc3/gadget.c

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05 08:03:23 +02:00
Greg Kroah-Hartman
35f2e3c267 Merge 6.0-rc4 into tty-next
We need the tty/serial fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-09-05 07:59:28 +02:00
Dmitry Torokhov
0eadd36d91 gpiolib: make fwnode_get_named_gpiod() static
There are no external users of fwnode_get_named_gpiod() anymore, so
let's stop exporting it and mark it as static.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-09-04 22:12:15 +02:00
Andy Shevchenko
9c06002682 dmaengine: hsu: Include headers we are direct user of
For the sake of integrity, include headers we are direct user of.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20220713172235.22611-4-andriy.shevchenko@linux.intel.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-09-04 22:49:35 +05:30
Shawn Lin
2e9bffc4f7 phy: rockchip: Support PCIe v3
RK3568 supports PCIe v3 using not Combphy like PCIe v2 on rk3566.
It use a dedicated PCIe-phy. Add support for this.

Initial support by Shawn Lin, modifications by Peter Geis and Frank
Wunderlich.

Add data-lanes property for splitting pcie-lanes across controllers.

The data-lanes is an array where x=0 means lane is disabled and  x > 0
means controller x is assigned to phy lane.

Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Suggested-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
Link: https://lore.kernel.org/r/20220825193836.54262-4-linux@fw-web.de
Signed-off-by: Vinod Koul <vkoul@kernel.org>
2022-09-04 20:35:48 +05:30
Jens Axboe
bce1b56c73 Revert "sbitmap: fix batched wait_cnt accounting"
This reverts commit 16ede66973.

This is causing issues with CPU stalls on my test box, revert it for
now until we understand what is going on. It looks like infinite
looping off sbitmap_queue_wake_up(), but hard to tell with a lot of
CPUs hitting this issue and the console scrolling infinitely.

Link: https://lore.kernel.org/linux-block/e742813b-ce5c-0d58-205b-1626f639b1bd@kernel.dk/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-09-04 06:39:25 -06:00
Markus Schneider-Pargmann
f89aa0b6db video/hdmi: Add audio_infoframe packing for DP
Similar to HDMI, DP uses audio infoframes as well which are structured
very similar to the HDMI ones.

This patch adds a helper function to pack the HDMI audio infoframe for
DP, called hdmi_audio_infoframe_pack_for_dp().
hdmi_audio_infoframe_pack_only() is split into two parts. One of them
packs the payload only and can be used for HDMI and DP.

Also constify the frame parameter in hdmi_audio_infoframe_check() as
it is passed to hdmi_audio_infoframe_check_only() which expects a const.

Signed-off-by: Markus Schneider-Pargmann <msp@baylibre.com>
Signed-off-by: Guillaume Ranquet <granquet@baylibre.com>
Signed-off-by: Bo-Chen Chen <rex-bc.chen@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220901044149.16782-3-rex-bc.chen@mediatek.com
2022-09-04 15:31:59 +03:00
David S. Miller
9837ec955b Merge tag 'wireless-next-2022-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Johannes Berg says:

====================
drivers
 - rtw89: large update across the map, e.g. coex, pci(e), etc.
 - ath9k: uninit memory read fix
 - ath10k: small peer map fix and a WCN3990 device fix
 - wfx: underflow

stack
 - the "change MAC address while IFF_UP" change from James
   we discussed
 - more MLO work, including a set of fixes for the previous
   code, now that we have more code we can exercise it more
 - prevent some features with MLO that aren't ready yet
   (AP_VLAN and 4-address connections)
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-04 11:24:34 +01:00
David S. Miller
c90714017c Merge tag 'wireless-2022-09-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Johannes berg says:

====================
We have a handful of fixes:
 - fix DMA from stack in wilc1000 driver
 - fix crash on chip reset failure in mt7921e
 - fix for the reported warning on aggregation timer expiry
 - check packet lengths in hwsim virtio paths
 - fix compiler warnings/errors with AAD construction by
   using struct_group
 - fix Intel 4965 driver rate scale operation
 - release channel contexts correctly in mac80211 mlme code
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-04 11:23:11 +01:00
Linus Torvalds
42cf58c272 Merge tag 'tty-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
 "Here are some small tty/serial/vt driver fixes for 6.0-rc4 that
  resolve a number of reported issues:

   - n_gsm fixups for previous changes that caused problems

   - much-reported serdev crash fix that showed up in 6.0-rc1

   - vt font selection bugfix

   - kerneldoc build warning fixes

   - other tiny serial core fixes

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  tty: n_gsm: avoid call of sleeping functions from atomic context
  tty: n_gsm: replace kicktimer with delayed_work
  tty: n_gsm: initialize more members at gsm_alloc_mux()
  tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf()
  tty: serial: atmel: Preserve previous USART mode if RS485 disabled
  tty: serial: lpuart: disable flow control while waiting for the transmit engine to complete
  tty: Fix lookahead_buf crash with serdev
  serial: fsl_lpuart: RS485 RTS polariy is inverse
  vt: Clear selection before changing the font
  serial: document start_rx member at struct uart_ops
2022-09-03 10:34:02 -07:00
Johannes Berg
6522047c65 wifi: nl80211: add MLD address to assoc BSS entries
Add an MLD address attribute to BSS entries that the interface
is currently associated with to help userspace figure out what's
going on.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-09-03 17:04:29 +02:00
James Prestwood
a36c421690 wifi: nl80211: Add POWERED_ADDR_CHANGE feature
Add a new extended feature bit signifying that the wireless hardware
supports changing the MAC address while the underlying net_device is
powered. Note that this has a different meaning from
IFF_LIVE_ADDR_CHANGE as additional restrictions might be imposed by
the hardware, such as:

 - No connection is active on this interface, carrier is off
 - No scan is in progress
 - No offchannel operations are in progress

Signed-off-by: James Prestwood <prestwoj@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-09-03 16:58:41 +02:00
Johannes Berg
2aec909912 wifi: use struct_group to copy addresses
We sometimes copy all the addresses from the 802.11 header
for the AAD, which may cause complaints from fortify checks.
Use struct_group() to avoid the compiler warnings/errors.

Change-Id: Ic3ea389105e7813b22095b295079eecdabde5045
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
2022-09-03 16:40:06 +02:00
Hans de Goede
77ab9d4d44 ACPI: video: Remove acpi_video_set_dmi_backlight_type()
acpi_video_set_dmi_backlight_type() is troublesome because it may end
up getting called after other backlight drivers have already called
acpi_video_get_backlight_type() resulting in the other drivers
already being registered even though they should not.

In case of the acpi_video backlight, acpi_video_set_dmi_backlight_type()
actually calls acpi_video_unregister_backlight() since that is often
probed earlier, leading to userspace seeing the acpi_video0 class
device being briefly available, leading to races in userspace where
udev probe-rules try to access the device and it is already gone.

All callers have been fixed to no longer call it, so remove
acpi_video_set_dmi_backlight_type() now.

This means we now also no longer need acpi_video_unregister_backlight()
for the remove acpi_video backlight after it was wrongly registered hack,
so remove that too.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-03 12:17:27 +02:00
Hans de Goede
21245df307 ACPI: video: Add Apple GMUX brightness control detection
On Apple laptops with an Apple GMUX using this for brightness control,
should take precedence of any other brightness control methods.

Add apple-gmux detection to acpi_video_get_backlight_type() using
the already existing apple_gmux_present() helper function.

This will allow removig the (ab)use of:

	acpi_video_set_dmi_backlight_type(acpi_backlight_vendor);

Inside the apple-gmux driver.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-03 12:17:26 +02:00
Hans de Goede
fe7aebb40d ACPI: video: Add Nvidia WMI EC brightness control detection (v3)
On some new laptop designs a new Nvidia specific WMI interface is present
which gives info about panel brightness control and may allow controlling
the brightness through this interface when the embedded controller is used
for brightness control.

When this WMI interface is present and indicates that the EC is used,
then this interface should be used for brightness control.

Changes in v2:
- Use the new shared nvidia-wmi-ec-backlight.h header for the
  WMI firmware API definitions
- ACPI_VIDEO can now be enabled on non X86 too,
  adjust the Kconfig changes to match this.

Changes in v3:
- Use WMI_BRIGHTNESS_GUID define

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-03 12:17:26 +02:00
Hans de Goede
3db2aeb121 platform/x86: nvidia-wmi-ec-backlight: Move fw interface definitions to a header (v2)
Move the WMI interface definitions to a header, so that the definitions
can be shared with drivers/acpi/video_detect.c .

Changes in v2:
- Add missing Nvidia copyright header
- Move WMI_BRIGHTNESS_GUID to nvidia-wmi-ec-backlight.h as well

Suggested-by: Daniel Dadap <ddadap@nvidia.com>
Reviewed-by: Daniel Dadap <ddadap@nvidia.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
2022-09-03 12:17:26 +02:00
Gustavo A. R. Silva
5854a09b49 net/ipv4: Use __DECLARE_FLEX_ARRAY() helper
We now have a cleaner way to keep compatibility with user-space
(a.k.a. not breaking it) when we need to keep in place a one-element
array (for its use in user-space) together with a flexible-array
member (for its use in kernel-space) without making it hard to read
at the source level. This is through the use of the new
__DECLARE_FLEX_ARRAY() helper macro.

The size and memory layout of the structure is preserved after the
changes. See below.

Before changes:

$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
	union {
		struct {
			__be32     imsf_multiaddr_aux;   /*     0     4 */
			__be32     imsf_interface_aux;   /*     4     4 */
			__u32      imsf_fmode_aux;       /*     8     4 */
			__u32      imsf_numsrc_aux;      /*    12     4 */
			__be32     imsf_slist[1];        /*    16     4 */
		};                                       /*     0    20 */
		struct {
			__be32     imsf_multiaddr;       /*     0     4 */
			__be32     imsf_interface;       /*     4     4 */
			__u32      imsf_fmode;           /*     8     4 */
			__u32      imsf_numsrc;          /*    12     4 */
			__be32     imsf_slist_flex[0];   /*    16     0 */
		};                                       /*     0    16 */
	};                                               /*     0    20 */

	/* size: 20, cachelines: 1, members: 1 */
	/* last cacheline: 20 bytes */
};

After changes:

$ pahole -C ip_msfilter net/ipv4/igmp.o
struct ip_msfilter {
	__be32                     imsf_multiaddr;       /*     0     4 */
	__be32                     imsf_interface;       /*     4     4 */
	__u32                      imsf_fmode;           /*     8     4 */
	__u32                      imsf_numsrc;          /*    12     4 */
	union {
		__be32             imsf_slist[1];        /*    16     4 */
		struct {
			struct {
			} __empty_imsf_slist_flex;       /*    16     0 */
			__be32     imsf_slist_flex[0];   /*    16     0 */
		};                                       /*    16     0 */
	};                                               /*    16     4 */

	/* size: 20, cachelines: 1, members: 5 */
	/* last cacheline: 20 bytes */
};

In the past, we had to duplicate the whole original structure within
a union, and update the names of all the members. Now, we just need to
declare the flexible-array member to be used in kernel-space through
the __DECLARE_FLEX_ARRAY() helper together with the one-element array,
within a union. This makes the source code more clean and easier to read.

Link: https://github.com/KSPP/linux/issues/193
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-03 09:51:10 +01:00
Martin KaFai Lau
38566ec06f bpf: Change bpf_getsockopt(SOL_IPV6) to reuse do_ipv6_getsockopt()
This patch changes bpf_getsockopt(SOL_IPV6) to reuse
do_ipv6_getsockopt().  It removes the duplicated code from
bpf_getsockopt(SOL_IPV6).

This also makes bpf_getsockopt(SOL_IPV6) supporting the same
set of optnames as in bpf_setsockopt(SOL_IPV6).  In particular,
this adds IPV6_AUTOFLOWLABEL support to bpf_getsockopt(SOL_IPV6).

ipv6 could be compiled as a module.  Like how other code solved it
with stubs in ipv6_stubs.h, this patch adds the do_ipv6_getsockopt
to the ipv6_bpf_stub.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002931.2896218-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:32 -07:00
Martin KaFai Lau
fd969f25fe bpf: Change bpf_getsockopt(SOL_IP) to reuse do_ip_getsockopt()
This patch changes bpf_getsockopt(SOL_IP) to reuse
do_ip_getsockopt() and remove the duplicated code.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002925.2895416-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:32 -07:00
Martin KaFai Lau
273b7f0fb4 bpf: Change bpf_getsockopt(SOL_TCP) to reuse do_tcp_getsockopt()
This patch changes bpf_getsockopt(SOL_TCP) to reuse
do_tcp_getsockopt().  It removes the duplicated code from
bpf_getsockopt(SOL_TCP).

Before this patch, there were some optnames available to
bpf_setsockopt(SOL_TCP) but missing in bpf_getsockopt(SOL_TCP).
For example, TCP_NODELAY, TCP_MAXSEG, TCP_KEEPIDLE, TCP_KEEPINTVL,
and a few more.  It surprises users from time to time.  This patch
automatically closes this gap without duplicating more code.

bpf_getsockopt(TCP_SAVED_SYN) does not free the saved_syn,
so it stays in sol_tcp_sockopt().

For string name value like TCP_CONGESTION, bpf expects it
is always null terminated, so sol_tcp_sockopt() decrements
optlen by one before calling do_tcp_getsockopt() and
the 'if (optlen < saved_optlen) memset(..,0,..);'
in __bpf_getsockopt() will always do a null termination.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002918.2894511-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:32 -07:00
Martin KaFai Lau
65ddc82d3b bpf: Change bpf_getsockopt(SOL_SOCKET) to reuse sk_getsockopt()
This patch changes bpf_getsockopt(SOL_SOCKET) to reuse
sk_getsockopt().  It removes all duplicated code from
bpf_getsockopt(SOL_SOCKET).

Before this patch, there were some optnames available to
bpf_setsockopt(SOL_SOCKET) but missing in bpf_getsockopt(SOL_SOCKET).
It surprises users from time to time.  For example, SO_REUSEADDR,
SO_KEEPALIVE, SO_RCVLOWAT, and SO_MAX_PACING_RATE.  This patch
automatically closes this gap without duplicating more code.
The only exception is SO_BINDTODEVICE because it needs to acquire a
blocking lock.  Thus, SO_BINDTODEVICE is not supported.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002912.2894040-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:31 -07:00
Martin KaFai Lau
6dadbe4bac bpf: net: Change do_ipv6_getsockopt() to take the sockptr_t argument
Similar to the earlier patch that changes sk_getsockopt() to
take the sockptr_t argument .  This patch also changes
do_ipv6_getsockopt() to take the sockptr_t argument such that
a latter patch can make bpf_getsockopt(SOL_IPV6) to reuse
do_ipv6_getsockopt().

Note on the change in ip6_mc_msfget().  This function is to
return an array of sockaddr_storage in optval.  This function
is shared between ipv6_get_msfilter() and compat_ipv6_get_msfilter().
However, the sockaddr_storage is stored at different offset of the
optval because of the difference between group_filter and
compat_group_filter.  Thus, a new 'ss_offset' argument is
added to ip6_mc_msfget().

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002853.2892532-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:31 -07:00
Martin KaFai Lau
728f064cd7 bpf: net: Change do_ip_getsockopt() to take the sockptr_t argument
Similar to the earlier patch that changes sk_getsockopt() to
take the sockptr_t argument.  This patch also changes
do_ip_getsockopt() to take the sockptr_t argument such that
a latter patch can make bpf_getsockopt(SOL_IP) to reuse
do_ip_getsockopt().

Note on the change in ip_mc_gsfget().  This function is to
return an array of sockaddr_storage in optval.  This function
is shared between ip_get_mcast_msfilter() and
compat_ip_get_mcast_msfilter().  However, the sockaddr_storage
is stored at different offset of the optval because of
the difference between group_filter and compat_group_filter.
Thus, a new 'ss_offset' argument is added to ip_mc_gsfget().

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002828.2890585-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:31 -07:00
Martin KaFai Lau
4ff09db1b7 bpf: net: Change sk_getsockopt() to take the sockptr_t argument
This patch changes sk_getsockopt() to take the sockptr_t argument
such that it can be used by bpf_getsockopt(SOL_SOCKET) in a
latter patch.

security_socket_getpeersec_stream() is not changed.  It stays
with the __user ptr (optval.user and optlen.user) to avoid changes
to other security hooks.  bpf_getsockopt(SOL_SOCKET) also does not
support SO_PEERSEC.

Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://lore.kernel.org/r/20220902002802.2888419-1-kafai@fb.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-02 20:34:30 -07:00
Gal Pressman
8254393663 net: ieee802154: Fix compilation error when CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled
When CONFIG_IEEE802154_NL802154_EXPERIMENTAL is disabled,
NL802154_CMD_DEL_SEC_LEVEL is undefined and results in a compilation
error:
net/ieee802154/nl802154.c:2503:19: error: 'NL802154_CMD_DEL_SEC_LEVEL' undeclared here (not in a function); did you mean 'NL802154_CMD_SET_CCA_ED_LEVEL'?
 2503 |  .resv_start_op = NL802154_CMD_DEL_SEC_LEVEL + 1,
      |                   ^~~~~~~~~~~~~~~~~~~~~~~~~~
      |                   NL802154_CMD_SET_CCA_ED_LEVEL

Unhide the experimental commands, having them defined in an enum
makes no difference.

Fixes: 9c5d03d362 ("genetlink: start to validate reserved header bytes")
Signed-off-by: Gal Pressman <gal@nvidia.com>
Acked-by: Stefan Schmidt <stefan@datenfreihafen.org>
Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Link: https://lore.kernel.org/r/20220902030620.2737091-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-02 19:59:08 -07:00
Jakub Kicinski
05a5474efe Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Florian Westphal says:

====================
netfilter: bug fixes for net

1. Fix IP address check in irc DCC conntrack helper, this should check
   the opposite direction rather than the destination address of the
   packets' direction, from David Leadbeater.

2. bridge netfilter needs to drop dst references, from Harsh Modi.
   This was fine back in the day the code was originally written,
   but nowadays various tunnels can pre-set metadata dsts on packets.

3. Remove nf_conntrack_helper sysctl and the modparam toggle, users
   need to explicitily assign the helpers to use via nftables or
   iptables.  Conntrack helpers, by design, may be used to add dynamic
   port redirections to internal machines, so its necessary to restrict
   which hosts/peers are allowed to use them.
   It was discovered that improper checking in the irc DCC helper makes
   it possible to trigger the 'please do dynamic port forward'
   from outside by embedding a 'DCC' in a PING request; if the client
   echos that back a expectation/port forward gets added.
   The auto-assign-for-everything mechanism has been in "please don't do this"
   territory since 2012.  From Pablo.

4. Fix a memory leak in the netdev hook error unwind path, also from Pablo.

* git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  netfilter: nf_conntrack_irc: Fix forged IP logic
  netfilter: nf_tables: clean up hook list when offload flags check fails
  netfilter: br_netfilter: Drop dst references before setting.
  netfilter: remove nf_conntrack_helper sysctl and modparam toggles
====================

Link: https://lore.kernel.org/r/20220901071238.3044-1-fw@strlen.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-02 19:38:25 -07:00
Linus Torvalds
cec53f4c8d Merge tag 'io_uring-6.0-2022-09-02' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:

 - A single fix for over-eager retries for networking (Pavel)

 - Revert the notification slot support for zerocopy sends.

   It turns out that even after more than a year or development and
   testing, there's not full agreement on whether just using plain
   ordered notifications is Good Enough to avoid the complexity of using
   the notifications slots. Because of that, we decided that it's best
   left to a future final decision.

   We can always bring back this feature, but we can't really change it
   or remove it once we've released 6.0 with it enabled. The reverts
   leave the usual CQE notifications as the primary interface for
   knowing when data was sent, and when it was acked. (Pavel)

* tag 'io_uring-6.0-2022-09-02' of git://git.kernel.dk/linux-block:
  selftests/net: return back io_uring zc send tests
  io_uring/net: simplify zerocopy send user API
  io_uring/notif: remove notif registration
  Revert "io_uring: rename IORING_OP_FILES_UPDATE"
  Revert "io_uring: add zc notification flush requests"
  selftests/net: temporarily disable io_uring zc test
  io_uring/net: fix overexcessive retries
2022-09-02 16:37:01 -07:00
Claudiu Beznea
a575207583 pinctrl: at91: move gpio suspend/resume calls to driver's context
Move gpio suspend/resume execution local to driver and let it execute as
close as possible to the moment the machine specific PM code is executed
(by setting it to .noirq member of dev_pm_ops). With this the
at91_pinctrl_gpio_suspend()/at91_pinctrl_gpio_resume() calls were removed
from arch/arm/mach-at91/pm.c and also a header has been removed.
The patch has been checked on sama5d3_xplained, sam9x60ek,
sama5d2_xplained, sama7g5ek boards.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20220831135636.3176406-3-claudiu.beznea@microchip.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2022-09-03 00:19:23 +02:00
Linus Torvalds
0b3acd1cc0 Merge tag 'driver-core-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core fixes from Greg KH:
 "Here are some small driver core fixes for some oft-reported problems
  in 6.0-rc1.  They include:

   - a bunch of reverts to handle driver_deferred_probe_check_state()
     problems that were part of the 6.0-rc1 merge.

   - firmware_loader bugfixes now that the code is being properly tested
     and used by others

   - arch_topology fix

   - deferred driver probe bugfix to solve a long-suffering amba bus
     problem that many people have reported.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'driver-core-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  firmware_loader: Fix memory leak in firmware upload
  firmware_loader: Fix use-after-free during unregister
  arch_topology: Silence early cacheinfo errors when non-existent
  driver core: Don't probe devices after bus_type.match() probe deferral
  Revert "iommu/of: Delete usage of driver_deferred_probe_check_state()"
  Revert "PM: domains: Delete usage of driver_deferred_probe_check_state()"
  Revert "net: mdio: Delete usage of driver_deferred_probe_check_state()"
  Revert "driver core: Delete driver_deferred_probe_check_state()"
2022-09-02 10:55:23 -07:00
Linus Torvalds
fd59585c42 Merge tag 'usb-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB/Thunderbolt driver fixes from Greg KH:
 "Here are a lot of small USB and Thunderbolt driver fixes for 6.0-rc4
  for reported problems. Included in here are:

   - new usb-serial driver ids

   - dwc3 driver bugfixes for reported problems with 6.0-rc1

   - new device quirks, and reverts of some quirks that were incorrect

   - gadget driver bugfixes for reported problems

   - USB host controller bugfixes (xhci and others)

   - other small USB fixes, details in the shortlog

   - small thunderbolt driver fixes

  All of these have been in linux-next with no reported issues"

* tag 'usb-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (51 commits)
  Revert "usb: gadget: udc-xilinx: replace memcpy with memcpy_toio"
  usb: storage: Add ASUS <0x0b05:0x1932> to IGNORE_UAS
  USB: serial: ch341: fix disabled rx timer on older devices
  USB: serial: ch341: fix lost character on LCR updates
  USB: serial: cp210x: add Decagon UCA device id
  Revert "usb: add quirks for Lenovo OneLink+ Dock"
  usb: cdns3: fix issue with rearming ISO OUT endpoint
  usb: cdns3: fix incorrect handling TRB_SMM flag for ISOC transfer
  usb: gadget: mass_storage: Fix cdrom data transfers on MAC-OS
  media: mceusb: Use new usb_control_msg_*() routines
  USB: core: Prevent nested device-reset calls
  USB: gadget: Fix obscure lockdep violation for udc_mutex
  usb: dwc2: fix wrong order of phy_power_on and phy_init
  usb: gadget: udc-xilinx: replace memcpy with memcpy_toio
  usb: typec: Remove retimers properly
  usb: dwc3: disable USB core PHY management
  usb: add quirks for Lenovo OneLink+ Dock
  USB: serial: option: add support for Cinterion MV32-WA/WB RmNet mode
  USB: serial: ftdi_sio: add Omron CS1W-CIF31 device id
  USB: serial: option: add Quectel EM060K modem
  ...
2022-09-02 10:43:46 -07:00
Linus Torvalds
1a2f6a3722 Merge tag 'platform-drivers-x86-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
 "Various small fixes and hardware-id additions"

* tag 'platform-drivers-x86-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: p2sb: Fix UAF when caller uses resource name
  platform/x86: asus-wmi: Increase FAN_CURVE_BUF_LEN to 32
  platform/mellanox: Remove redundant 'NULL' check
  platform/mellanox: Remove unnecessary code
  platform/mellanox: mlxreg-lc: Fix locking issue
  platform/mellanox: mlxreg-lc: Fix coverity warning
  platform/x86: acer-wmi: Acer Aspire One AOD270/Packard Bell Dot keymap fixes
  platform/x86: thinkpad_acpi: Explicitly set to balanced mode on startup
  platform/x86: asus-wmi: Fix the name of the mic-mute LED classdev
  platform/surface: aggregator_registry: Add HID devices for sensors and UCSI client to SP8
  platform/surface: aggregator_registry: Rename HID device nodes based on new findings
  platform/surface: aggregator_registry: Rename HID device nodes based on their function
  platform/surface: aggregator_registry: Add support for Surface Laptop Go 2
  platform/x86: x86-android-tablets: Fix broken touchscreen on Chuwi Hi8 with Windows BIOS
  platform/x86: pmc_atom: Fix SLP_TYPx bitfield mask
2022-09-02 10:35:51 -07:00
Ville Syrjälä
c7943bb324 drm/edid: Handle EDID 1.4 range descriptor h/vfreq offsets
EDID 1.4 introduced some extra flags in the range
descriptor to support min/max h/vfreq >= 255. Consult them
to correctly parse the vfreq limits.

Note that some combinations of the flags are documented
as "reserved" (as are some other values in the descriptor)
but explicitly checking for those doesn't seem particularly
worthwile since we end up with bogus results whether we
decode them or not.

v2: Increase the storage to u16 to make it work (Jani)
    Note the "reserved" values situation (Jani)
v3: Document the EDID version number in the defines
    Drop some bogus (u8) casts

Cc: stable@vger.kernel.org
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/6519
References: https://gitlab.freedesktop.org/drm/intel/-/issues/6484
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220826213501.31490-2-ville.syrjala@linux.intel.com
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
2022-09-02 16:38:51 +03:00
Shmulik Ladkani
44c51472be bpf: Support getting tunnel flags
Existing 'bpf_skb_get_tunnel_key' extracts various tunnel parameters
(id, ttl, tos, local and remote) but does not expose ip_tunnel_info's
tun_flags to the BPF program.

It makes sense to expose tun_flags to the BPF program.

Assume for example multiple GRE tunnels maintained on a single GRE
interface in collect_md mode. The program expects origins to initiate
over GRE, however different origins use different GRE characteristics
(e.g. some prefer to use GRE checksum, some do not; some pass a GRE key,
some do not, etc..).

A BPF program getting tun_flags can therefore remember the relevant
flags (e.g. TUNNEL_CSUM, TUNNEL_SEQ...) for each initiating remote. In
the reply path, the program can use 'bpf_skb_set_tunnel_key' in order
to correctly reply to the remote, using similar characteristics, based
on the stored tunnel flags.

Introduce BPF_F_TUNINFO_FLAGS flag for bpf_skb_get_tunnel_key. If
specified, 'bpf_tunnel_key->tunnel_flags' is set with the tun_flags.

Decided to use the existing unused 'tunnel_ext' as the storage for the
'tunnel_flags' in order to avoid changing bpf_tunnel_key's layout.

Also, the following has been considered during the design:

  1. Convert the "interesting" internal TUNNEL_xxx flags back to BPF_F_yyy
     and place into the new 'tunnel_flags' field. This has 2 drawbacks:

     - The BPF_F_yyy flags are from *set_tunnel_key* enumeration space,
       e.g. BPF_F_ZERO_CSUM_TX. It is awkward that it is "returned" into
       tunnel_flags from a *get_tunnel_key* call.
     - Not all "interesting" TUNNEL_xxx flags can be mapped to existing
       BPF_F_yyy flags, and it doesn't make sense to create new BPF_F_yyy
       flags just for purposes of the returned tunnel_flags.

  2. Place key.tun_flags into 'tunnel_flags' but mask them, keeping only
     "interesting" flags. That's ok, but the drawback is that what's
     "interesting" for my usecase might be limiting for other usecases.

Therefore I decided to expose what's in key.tun_flags *as is*, which seems
most flexible. The BPF user can just choose to ignore bits he's not
interested in. The TUNNEL_xxx are also UAPI, so no harm exposing them
back in the get_tunnel_key call.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20220831144010.174110-1-shmulik.ladkani@gmail.com
2022-09-02 15:20:55 +02:00
Shung-Hsi Yu
dc84dbbcc9 bpf, tnums: Warn against the usage of tnum_in(tnum_range(), ...)
Commit a657182a5c ("bpf: Don't use tnum_range on array range checking
for poke descriptors") has shown that using tnum_range() as argument to
tnum_in() can lead to misleading code that looks like tight bound check
when in fact the actual allowed range is much wider.

Document such behavior to warn against its usage in general, and suggest
some scenario where result can be trusted.

Signed-off-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel@iogearbox.net
Link: https://www.openwall.com/lists/oss-security/2022/08/26/1
Link: https://lore.kernel.org/bpf/20220831031907.16133-3-shung-hsi.yu@suse.com
Link: https://lore.kernel.org/bpf/20220831031907.16133-2-shung-hsi.yu@suse.com
2022-09-02 14:44:54 +02:00
Mark Brown
b30f7c8eb0 spi: mux: Fix mux interaction with fast path optimisations
The spi-mux driver is rather too clever and attempts to resubmit any
message that is submitted to it to the parent controller with some
adjusted callbacks.  This does not play at all nicely with the fast
path which now sets flags on the message indicating that it's being
handled through the fast path, we see async messages flagged as being on
the fast path.  Ideally the spi-mux code would duplicate the message but
that's rather invasive and a bit fragile in that it relies on the mux
knowing which fields in the message to copy.  Instead teach the core
that there are controllers which can't cope with the fast path and have
the mux flag itself as being such a controller, ensuring that messages
going via the mux don't get partially handled via the fast path.

This will reduce the performance of any spi-mux connected device since
we'll now always use the thread for both the actual controller and the
mux controller instead of just the actual controller but given that we
were always hitting the slow path anyway it's hopefully not too much of
an additional cost and it allows us to keep the fast path.

Fixes: ae7d2346dc ("spi: Don't use the message queue if possible in spi_sync")
Reported-by: Casper Andersson <casper.casan@gmail.com>
Tested-by: Casper Andersson <casper.casan@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20220901120732.49245-1-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-09-02 13:27:13 +01:00
David S. Miller
e7506d344b Merge tag 'rxrpc-fixes-20220901' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
David Howells says:

====================
rxrpc fixes
Here are some fixes for AF_RXRPC:

 (1) Fix the handling of ICMP/ICMP6 packets.  This is a problem due to
     rxrpc being switched to acting as a UDP tunnel, thereby allowing it to
     steal the packets before they go through the UDP Rx queue.  UDP
     tunnels can't get ICMP/ICMP6 packets, however.  This patch adds an
     additional encap hook so that they can.

 (2) Fix the encryption routines in rxkad to handle packets that have more
     than three parts correctly.  The problem is that ->nr_frags doesn't
     count the initial fragment, so the sglist ends up too short.

 (3) Fix a problem with destruction of the local endpoint potentially
     getting repeated.

 (4) Fix the calculation of the time at which to resend.
     jiffies_to_usecs() gives microseconds, not nanoseconds.

 (5) Fix AFS to work out when callback promises and locks expire based on
     the time an op was issued rather than the time the first reply packet
     arrives.  We don't know how long the server took between calculating
     the expiry interval and transmitting the reply.

 (6) Given (5), rxrpc_get_reply_time() is no longer used, so remove it.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-02 12:45:32 +01:00
Jakub Kicinski
c3f760ef12 net: remove netif_tx_napi_add()
All callers are now gone.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-02 12:41:43 +01:00
Eric Dumazet
3261400639 tcp: TX zerocopy should not sense pfmemalloc status
We got a recent syzbot report [1] showing a possible misuse
of pfmemalloc page status in TCP zerocopy paths.

Indeed, for pages coming from user space or other layers,
using page_is_pfmemalloc() is moot, and possibly could give
false positives.

There has been attempts to make page_is_pfmemalloc() more robust,
but not using it in the first place in this context is probably better,
removing cpu cycles.

Note to stable teams :

You need to backport 84ce071e38 ("net: introduce
__skb_fill_page_desc_noacc") as a prereq.

Race is more probable after commit c07aea3ef4
("mm: add a signature in struct page") because page_is_pfmemalloc()
is now using low order bit from page->lru.next, which can change
more often than page->index.

Low order bit should never be set for lru.next (when used as an anchor
in LRU list), so KCSAN report is mostly a false positive.

Backporting to older kernel versions seems not necessary.

[1]
BUG: KCSAN: data-race in lru_add_fn / tcp_build_frag

write to 0xffffea0004a1d2c8 of 8 bytes by task 18600 on cpu 0:
__list_add include/linux/list.h:73 [inline]
list_add include/linux/list.h:88 [inline]
lruvec_add_folio include/linux/mm_inline.h:105 [inline]
lru_add_fn+0x440/0x520 mm/swap.c:228
folio_batch_move_lru+0x1e1/0x2a0 mm/swap.c:246
folio_batch_add_and_move mm/swap.c:263 [inline]
folio_add_lru+0xf1/0x140 mm/swap.c:490
filemap_add_folio+0xf8/0x150 mm/filemap.c:948
__filemap_get_folio+0x510/0x6d0 mm/filemap.c:1981
pagecache_get_page+0x26/0x190 mm/folio-compat.c:104
grab_cache_page_write_begin+0x2a/0x30 mm/folio-compat.c:116
ext4_da_write_begin+0x2dd/0x5f0 fs/ext4/inode.c:2988
generic_perform_write+0x1d4/0x3f0 mm/filemap.c:3738
ext4_buffered_write_iter+0x235/0x3e0 fs/ext4/file.c:270
ext4_file_write_iter+0x2e3/0x1210
call_write_iter include/linux/fs.h:2187 [inline]
new_sync_write fs/read_write.c:491 [inline]
vfs_write+0x468/0x760 fs/read_write.c:578
ksys_write+0xe8/0x1a0 fs/read_write.c:631
__do_sys_write fs/read_write.c:643 [inline]
__se_sys_write fs/read_write.c:640 [inline]
__x64_sys_write+0x3e/0x50 fs/read_write.c:640
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd

read to 0xffffea0004a1d2c8 of 8 bytes by task 18611 on cpu 1:
page_is_pfmemalloc include/linux/mm.h:1740 [inline]
__skb_fill_page_desc include/linux/skbuff.h:2422 [inline]
skb_fill_page_desc include/linux/skbuff.h:2443 [inline]
tcp_build_frag+0x613/0xb20 net/ipv4/tcp.c:1018
do_tcp_sendpages+0x3e8/0xaf0 net/ipv4/tcp.c:1075
tcp_sendpage_locked net/ipv4/tcp.c:1140 [inline]
tcp_sendpage+0x89/0xb0 net/ipv4/tcp.c:1150
inet_sendpage+0x7f/0xc0 net/ipv4/af_inet.c:833
kernel_sendpage+0x184/0x300 net/socket.c:3561
sock_sendpage+0x5a/0x70 net/socket.c:1054
pipe_to_sendpage+0x128/0x160 fs/splice.c:361
splice_from_pipe_feed fs/splice.c:415 [inline]
__splice_from_pipe+0x222/0x4d0 fs/splice.c:559
splice_from_pipe fs/splice.c:594 [inline]
generic_splice_sendpage+0x89/0xc0 fs/splice.c:743
do_splice_from fs/splice.c:764 [inline]
direct_splice_actor+0x80/0xa0 fs/splice.c:931
splice_direct_to_actor+0x305/0x620 fs/splice.c:886
do_splice_direct+0xfb/0x180 fs/splice.c:974
do_sendfile+0x3bf/0x910 fs/read_write.c:1249
__do_sys_sendfile64 fs/read_write.c:1317 [inline]
__se_sys_sendfile64 fs/read_write.c:1303 [inline]
__x64_sys_sendfile64+0x10c/0x150 fs/read_write.c:1303
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd

value changed: 0x0000000000000000 -> 0xffffea0004a1d288

Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 18611 Comm: syz-executor.4 Not tainted 6.0.0-rc2-syzkaller-00248-ge022620b5d05-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022

Fixes: c07aea3ef4 ("mm: add a signature in struct page")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-02 12:29:02 +01:00
Eric Dumazet
977f1aa5e4 net: bql: add more documentation
Add some documentation for netdev_tx_sent_queue() and
netdev_tx_completed_queue()

Stating that netdev_tx_completed_queue() must be called once
per TX completion round is apparently not obvious for everybody.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-09-02 12:27:46 +01:00
Arnd Bergmann
73bf60ba7c Merge tag 'renesas-arm-dt-for-v6.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/dt
Renesas ARM DT updates for v6.1

  - SDHI and eMMC support for the R-Car S4-8 SoC and the Spider
    development board,
  - Timer (CMT and TMU) and SPI (MSIOF) support for the R-Car S4-8 SoC,
  - External and GPIO interrupt support for the RZ/G2L and RZ/V2L SoCs,
  - Initial support for the R-Car H3Ne-1.7G (R8A779MB) SoC,
  - SPI DMA support for the RZ/G2UL, RZ/G2L, and RZ/V2L SoCs,
  - Pin control and I2C support for the RZ/V2M SoC and the RZ/V2M
    Evaluation Kit,
  - initial support for the R-Car V3H2 (R8A77980A) SoC and the Condor-I
    development board,
  - Miscellaneous fixes and improvements.

* tag 'renesas-arm-dt-for-v6.1-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel: (33 commits)
  arm64: dts: renesas: Add V3H2 Condor-I board support
  arm64: dts: renesas: Add r8a77980a.dtsi
  arm64: dts: renesas: Add condor-common.dtsi
  arm64: dts: renesas: Drop clock-names property from RPC node
  arm64: dts: renesas: r8a779f0: Add MSIOF nodes
  arm64: dts: renesas: r8a774a1: Put I2C aliases to board files
  arm64: dts: renesas: r8a774e1: Rename i2c_dvfs to iic_pmic
  arm64: dts: renesas: r8a779a0: Put I2C aliases to board files
  arm64: dts: renesas: r8a77990: Put I2C aliases to board files
  arm64: dts: renesas: r8a77980: Put I2C aliases to board files
  arm64: dts: renesas: r8a77970: Put I2C aliases to board files
  arm64: dts: renesas: r8a779{51|60|65}: Put I2C aliases to board files
  arm64: dts: renesas: rzv2m evk: Enable i2c
  arm64: dts: renesas: r9a09g011: Add i2c nodes
  arm64: dts: renesas: r9a09g011: Add pinctrl node
  arm64: dts: renesas: r9a07g043: Fix SCI{Rx,Tx} interrupt types
  arm64: dts: renesas: r9a07g054: Fix SCI{Rx,Tx} interrupt types
  arm64: dts: renesas: r9a07g044: Fix SCI{Rx,Tx} interrupt types
  arm64: dts: renesas: r9a07g043: Fix audio clk node names
  arm64: dts: renesas: r9a07g054: Add DMA support to RSPI
  ...

Link: https://lore.kernel.org/r/cover.1662111128.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-09-02 12:22:50 +02:00