Devices that lack persistent storage for the device address can indicate
this by setting the HCI_QUIRK_INVALID_BDADDR which causes the controller
to be marked as unconfigured until user space has set a valid address.
Once configured, the device address must be set on every setup for
controllers with HCI_QUIRK_NON_PERSISTENT_SETUP to avoid marking the
controller as unconfigured and requiring the address to be set again.
Fixes: 740011cfe9 ("Bluetooth: Add new quirk for non-persistent setup settings")
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fix potential use-after-free in l2cap_le_command_rej.
Signed-off-by: Zhengping Jiang <jiangzp@google.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Use le32_to_cpu for ver.soc_id to fix the following
sparse warning.
drivers/bluetooth/btqca.c:640:24: sparse: warning: restricted
__le32 degrades to integer
Signed-off-by: Min-Hua Chen <minhuadotchen@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Add missing MODULE_FIRMWARE declarations for firmware referenced in
btrtl.c.
Signed-off-by: Dan Gora <dan.gora@gmail.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Fixes a bug where on the M1 mac mini initramfs-tools fails to
include the necessary firmware into the initrd.
Fixes: c4dab50697 ("tg3: Download 57766 EEE service patch firmware")
Signed-off-by: Tobias Heider <me@tobhe.de>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://lore.kernel.org/r/ZJt7LKzjdz8+dClx@tobhe.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Vladimir Oltean says:
====================
Fix PTP received on wrong port with bridged SJA1105 DSA
Since the changes were made to tag_8021q to support imprecise RX for
bridged ports, the tag_sja1105 driver still prefers the source port
information deduced from the VLAN headers for link-local traffic, even
though the switch can theoretically do better and report the precise
source port.
The problem is that the tagger doesn't know when to trust one source of
information over another, because the INCL_SRCPT option (to "tag" link
local frames) is sometimes enabled and sometimes it isn't.
The first patch makes the switch provide the hardware tag for link local
traffic under all circumstances, and the second patch makes the tagger
always use that hardware tag as primary source of information for link
local packets.
====================
Link: https://lore.kernel.org/r/20230627094207.3385231-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Currently the sja1105 tagging protocol prefers using the source port
information from the VLAN header if that is available, falling back to
the INCL_SRCPT option if it isn't. The VLAN header is available for all
frames except for META frames initiated by the switch (containing RX
timestamps), and thus, the "if (is_link_local)" branch is practically
dead.
The tag_8021q source port identification has become more loose
("imprecise") and will report a plausible rather than exact bridge port,
when under a bridge (be it VLAN-aware or VLAN-unaware). But link-local
traffic always needs to know the precise source port. With incorrect
source port reporting, for example PTP traffic over 2 bridged ports will
all be seen on sockets opened on the first such port, which is incorrect.
Now that the tagging protocol has been changed to make link-local frames
always contain source port information, we can reverse the order of the
checks so that we always give precedence to that information (which is
always precise) in lieu of the tag_8021q VID which is only precise for a
standalone port.
Fixes: d7f9787a76 ("net: dsa: tag_8021q: add support for imprecise RX based on the VBID")
Fixes: 91495f21fc ("net: dsa: tag_8021q: replace the SVL bridging with VLAN-unaware IVL bridging")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Link-local traffic on bridged SJA1105 ports is sometimes tagged by the
hardware with source port information (when the port is under a VLAN
aware bridge).
The tag_8021q source port identification has become more loose
("imprecise") and will report a plausible rather than exact bridge port,
when under a bridge (be it VLAN-aware or VLAN-unaware). But link-local
traffic always needs to know the precise source port.
Modify the driver logic (and therefore: the tagging protocol itself) to
always include the source port information with link-local packets,
regardless of whether the port is standalone, under a VLAN-aware or
VLAN-unaware bridge. This makes it possible for the tagging driver to
give priority to that information over the tag_8021q VLAN header.
The big drawback with INCL_SRCPT is that it makes it impossible to
distinguish between an original MAC DA of 01:80:C2:XX:YY:ZZ and
01:80:C2:AA:BB:ZZ, because the tagger just patches MAC DA bytes 3 and 4
with zeroes. Only if PTP RX timestamping is enabled, the switch will
generate a META follow-up frame containing the RX timestamp and the
original bytes 3 and 4 of the MAC DA. Those will be used to patch up the
original packet. Nonetheless, in the absence of PTP RX timestamping, we
have to live with this limitation, since it is more important to have
the more precise source port information for link-local traffic.
Fixes: d7f9787a76 ("net: dsa: tag_8021q: add support for imprecise RX based on the VBID")
Fixes: 91495f21fc ("net: dsa: tag_8021q: replace the SVL bridging with VLAN-unaware IVL bridging")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Vladimir Oltean says:
====================
Fix PTP packet drops with ocelot-8021q DSA tag protocol
Changes in v2:
- Distinguish between L2 and L4 PTP packets
v1 at:
https://lore.kernel.org/netdev/20230626154003.3153076-1-vladimir.oltean@nxp.com/
Patch 3/3 fixes an issue with the ocelot/felix driver, where it would
drop PTP traffic on RX unless hardware timestamping for that packet type
was enabled.
Fixing that requires the driver to know whether it had previously
configured the hardware to timestamp PTP packets on that port. But it
cannot correctly determine that today using the existing code structure,
so patches 1/3 and 2/3 fix the control path of the code such that
ocelot->ports[port]->trap_proto faithfully reflects whether that
configuration took place.
====================
Link: https://lore.kernel.org/r/20230627163114.3561597-1-vladimir.oltean@nxp.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
The driver implements a workaround for the fact that it doesn't have an
IRQ source to tell it whether PTP frames are available through the
extraction registers, for those frames to be processed and passed
towards the network stack. That workaround is to configure the switch,
through felix_hwtstamp_set() -> felix_update_trapping_destinations(),
to create two copies of PTP packets: one sent over Ethernet to the DSA
master, and one to be consumed through the aforementioned CPU extraction
queue registers.
The reason why we want PTP packets to be consumed through the CPU
extraction registers in the first place is because we want to see their
hardware RX timestamp. With tag_8021q, that is only visible that way,
and it isn't visible with the copy of the packet that's transmitted over
Ethernet.
The problem with the workaround implementation is that it drops the
packet received over Ethernet, in expectation of its copy being present
in the CPU extraction registers. However, if felix_hwtstamp_set() hasn't
run (aka PTP RX timestamping is disabled), the driver will drop the
original PTP frame and there will be no copy of it in the CPU extraction
registers. So, the network stack will simply not see any PTP frame.
Look at the port's trapping configuration to see whether the driver has
previously enabled the CPU extraction registers. If it hasn't, just
don't RX timestamp the frame and let it be passed up the stack by DSA,
which is perfectly fine.
Fixes: 0a6f17c6ae ("net: dsa: tag_ocelot_8021q: add support for PTP timestamping")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
In a future change, the driver will need to determine whether PTP RX
timestamping is enabled on a port (including whether traps were set up
on that port in particular) and that is currently not possible.
The driver supports different RX filters (L2, L4) and kinds of TX
timestamping (one-step, two-step) on its ports, but it saves all
configuration in a single struct hwtstamp_config that is global to the
switch. So, the latest timestamping configuration on one port
(including a request to disable timestamping) affects what gets reported
for all ports, even though the configuration itself is still individual
to each port.
The port timestamping configurations are only coupled because of the
common structure, so replace the hwtstamp_config with a mask of trapped
protocols saved per port. We also have the ptp_cmd to distinguish
between one-step and two-step PTP timestamping, so with those 2 bits of
information we can fully reconstruct a descriptive struct
hwtstamp_config for each port, during the SIOCGHWTSTAMP ioctl.
Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Fixes: 96ca08c058 ("net: mscc: ocelot: set up traps for PTP packets")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
PTP RX timestamping should be enabled when the user requests it, not by
default. If it is enabled by default, it can be problematic when the
ocelot driver is a DSA master, and it sidesteps what DSA tries to avoid
through __dsa_master_hwtstamp_validate().
Additionally, after the change which made ocelot trap PTP packets only
to the CPU at ocelot_hwtstamp_set() time, it is no longer even true that
RX timestamping is enabled by default, because until ocelot_hwtstamp_set()
is called, the PTP traps are actually not set up. So the rx_filter field
of ocelot->hwtstamp_config reflects an incorrect reality.
Fixes: 96ca08c058 ("net: mscc: ocelot: set up traps for PTP packets")
Fixes: 4e3b0468e6 ("net: mscc: PTP Hardware Clock (PHC) support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Florian Westphal says:
====================
net/sched: act_ipt bug fixes
v3: prefer skb_header() helper in patch 2. No other changes.
I've retained Acks and RvB-Tags of v2.
While checking if netfilter could be updated to replace selected
instances of NF_DROP with kfree_skb_reason+NF_STOLEN to improve
debugging info via drop monitor I found that act_ipt is incompatible
with such an approach. Moreover, it lacks multiple sanity checks
to avoid certain code paths that make assumptions that the tc layer
doesn't meet, such as header sanity checks, availability of skb_dst,
skb_nfct() and so on.
act_ipt test in the tc selftest still pass with this applied.
I think that we should consider removal of this module, while
this should take care of all problems, its ipv4 only and I don't
think there are any netfilter targets that lack a native tc
equivalent, even when ignoring bpf.
====================
Link: https://lore.kernel.org/r/20230627123813.3036-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
xtables relies on skb being owned by ip stack, i.e. with ipv4
check in place skb->cb is supposed to be IPCB.
I don't see an immediate problem (REJECT target cannot be used anymore
now that PRE/POSTROUTING hook validation has been fixed), but better be
safe than sorry.
A much better patch would be to either mark act_ipt as
"depends on BROKEN" or remove it altogether. I plan to do this
for -next in the near future.
This tc extension is broken in the sense that tc lacks an
equivalent of NF_STOLEN verdict.
With NF_STOLEN, target function takes complete ownership of skb, caller
cannot dereference it anymore.
ACT_STOLEN cannot be used for this: it has a different meaning, caller
is allowed to dereference the skb.
At this time NF_STOLEN won't be returned by any targets as far as I can
see, but this may change in the future.
It might be possible to work around this via list of allowed
target extensions known to only return DROP or ACCEPT verdicts, but this
is error prone/fragile.
Existing selftest only validates xt_LOG and act_ipt is restricted
to ipv4 so I don't think this action is used widely.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Netfilter targets make assumptions on the skb state, for example
iphdr is supposed to be in the linear area.
This is normally done by IP stack, but in act_ipt case no
such checks are made.
Some targets can even assume that skb_dst will be valid.
Make a minimum effort to check for this:
- Don't call the targets eval function for non-ipv4 skbs.
- Don't call the targets eval function for POSTROUTING
emulation when the skb has no dst set.
v3: use skb_protocol helper (Davide Caratti)
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Looks like "tc" hard-codes "mangle" as the only supported table
name, but on kernel side there are no checks.
This is wrong. Not all xtables targets are safe to call from tc.
E.g. "nat" targets assume skb has a conntrack object assigned to it.
Normally those get called from netfilter nat core which consults the
nat table to obtain the address mapping.
"tc" userspace either sets PRE or POSTROUTING as hook number, but there
is no validation of this on kernel side, so update netlink policy to
reject bogus numbers. Some targets may assume skb_dst is set for
input/forward hooks, so prevent those from being used.
act_ipt uses the hook number in two places:
1. the state hook number, this is fine as-is
2. to set par.hook_mask
The latter is a bit mask, so update the assignment to make
xt_check_target() to the right thing.
Followup patch adds required checks for the skb/packet headers before
calling the targets evaluation function.
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
As &net->sctp.addr_wq_lock is also acquired by the timer
sctp_addr_wq_timeout_handler() in protocal.c, the same lock acquisition
at sctp_auto_asconf_init() seems should disable irq since it is called
from sctp_accept() under process context.
Possible deadlock scenario:
sctp_accept()
-> sctp_sock_migrate()
-> sctp_auto_asconf_init()
-> spin_lock(&net->sctp.addr_wq_lock)
<timer interrupt>
-> sctp_addr_wq_timeout_handler()
-> spin_lock_bh(&net->sctp.addr_wq_lock); (deadlock here)
This flaw was found using an experimental static analysis tool we are
developing for irq-related deadlock.
The tentative patch fix the potential deadlock by spin_lock_bh().
Signed-off-by: Chengfeng Ye <dg573847474@gmail.com>
Fixes: 34e5b01186 ("sctp: delay auto_asconf init until binding the first addr")
Acked-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20230627120340.19432-1-dg573847474@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
dev_set_rx_mode() grabs a spin_lock, and the lan743x implementation
proceeds subsequently to go to sleep using readx_poll_timeout().
Introduce a helper wrapping the readx_poll_timeout_atomic() function
and use it to replace the calls to readx_polL_timeout().
Fixes: 23f0703c12 ("lan743x: Add main source files for new lan743x driver")
Cc: stable@vger.kernel.org
Cc: Bryan Whitehead <bryan.whitehead@microchip.com>
Cc: UNGLinuxDriver@microchip.com
Signed-off-by: Moritz Fischer <moritzf@google.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20230627035000.1295254-1-moritzf@google.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Core
----
- Rework the sendpage & splice implementations. Instead of feeding
data into sockets page by page extend sendmsg handlers to support
taking a reference on the data, controlled by a new flag called
MSG_SPLICE_PAGES. Rework the handling of unexpected-end-of-file
to invoke an additional callback instead of trying to predict what
the right combination of MORE/NOTLAST flags is.
Remove the MSG_SENDPAGE_NOTLAST flag completely.
- Implement SCM_PIDFD, a new type of CMSG type analogous to
SCM_CREDENTIALS, but it contains pidfd instead of plain pid.
- Enable socket busy polling with CONFIG_RT.
- Improve reliability and efficiency of reporting for ref_tracker.
- Auto-generate a user space C library for various Netlink families.
Protocols
---------
- Allow TCP to shrink the advertised window when necessary, prevent
sk_rcvbuf auto-tuning from growing the window all the way up to
tcp_rmem[2].
- Use per-VMA locking for "page-flipping" TCP receive zerocopy.
- Prepare TCP for device-to-device data transfers, by making sure
that payloads are always attached to skbs as page frags.
- Make the backoff time for the first N TCP SYN retransmissions
linear. Exponential backoff is unnecessarily conservative.
- Create a new MPTCP getsockopt to retrieve all info (MPTCP_FULL_INFO).
- Avoid waking up applications using TLS sockets until we have
a full record.
- Allow using kernel memory for protocol ioctl callbacks, paving
the way to issuing ioctls over io_uring.
- Add nolocalbypass option to VxLAN, forcing packets to be fully
encapsulated even if they are destined for a local IP address.
- Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
in-kernel ECMP implementation (e.g. Open vSwitch) select the same
link for all packets. Support L4 symmetric hashing in Open vSwitch.
- PPPoE: make number of hash bits configurable.
- Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
(ipconfig).
- Add layer 2 miss indication and filtering, allowing higher layers
(e.g. ACL filters) to make forwarding decisions based on whether
packet matched forwarding state in lower devices (bridge).
- Support matching on Connectivity Fault Management (CFM) packets.
- Hide the "link becomes ready" IPv6 messages by demoting their
printk level to debug.
- HSR: don't enable promiscuous mode if device offloads the proto.
- Support active scanning in IEEE 802.15.4.
- Continue work on Multi-Link Operation for WiFi 7.
BPF
---
- Add precision propagation for subprogs and callbacks. This allows
maintaining verification efficiency when subprograms are used,
or in fact passing the verifier at all for complex programs,
especially those using open-coded iterators.
- Improve BPF's {g,s}setsockopt() length handling. Previously BPF
assumed the length is always equal to the amount of written data.
But some protos allow passing a NULL buffer to discover what
the output buffer *should* be, without writing anything.
- Accept dynptr memory as memory arguments passed to helpers.
- Add routing table ID to bpf_fib_lookup BPF helper.
- Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands.
- Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
maps as read-only).
- Show target_{obj,btf}_id in tracing link fdinfo.
- Addition of several new kfuncs (most of the names are self-explanatory):
- Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
and bpf_dynptr_clone().
- bpf_task_under_cgroup()
- bpf_sock_destroy() - force closing sockets
- bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs
Netfilter
---------
- Relax set/map validation checks in nf_tables. Allow checking
presence of an entry in a map without using the value.
- Increase ip_vs_conn_tab_bits range for 64BIT builds.
- Allow updating size of a set.
- Improve NAT tuple selection when connection is closing.
Driver API
----------
- Integrate netdev with LED subsystem, to allow configuring HW
"offloaded" blinking of LEDs based on link state and activity
(i.e. packets coming in and out).
- Support configuring rate selection pins of SFP modules.
- Factor Clause 73 auto-negotiation code out of the drivers, provide
common helper routines.
- Add more fool-proof helpers for managing lifetime of MDIO devices
associated with the PCS layer.
- Allow drivers to report advanced statistics related to Time Aware
scheduler offload (taprio).
- Allow opting out of VF statistics in link dump, to allow more VFs
to fit into the message.
- Split devlink instance and devlink port operations.
New hardware / drivers
----------------------
- Ethernet:
- Synopsys EMAC4 IP support (stmmac)
- Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
- Marvell 88E6250 7 port switches
- Microchip LAN8650/1 Rev.B0 PHYs
- MediaTek MT7981/MT7988 built-in 1GE PHY driver
- WiFi:
- Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
- Realtek RTL8723DS (SDIO variant)
- Realtek RTL8851BE
- CAN:
- Fintek F81604
Drivers
-------
- Ethernet NICs:
- Intel (100G, ice):
- support dynamic interrupt allocation
- use meta data match instead of VF MAC addr on slow-path
- nVidia/Mellanox:
- extend link aggregation to handle 4, rather than just 2 ports
- spawn sub-functions without any features by default
- OcteonTX2:
- support HTB (Tx scheduling/QoS) offload
- make RSS hash generation configurable
- support selecting Rx queue using TC filters
- Wangxun (ngbe/txgbe):
- add basic Tx/Rx packet offloads
- add phylink support (SFP/PCS control)
- Freescale/NXP (enetc):
- report TAPRIO packet statistics
- Solarflare/AMD:
- support matching on IP ToS and UDP source port of outer header
- VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
- add devlink dev info support for EF10
- Virtual NICs:
- Microsoft vNIC:
- size the Rx indirection table based on requested configuration
- support VLAN tagging
- Amazon vNIC:
- try to reuse Rx buffers if not fully consumed, useful for ARM
servers running with 16kB pages
- Google vNIC:
- support TCP segmentation of >64kB frames
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- enable USXGMII (88E6191X)
- Microchip:
- lan966x: add support for Egress Stage 0 ACL engine
- lan966x: support mapping packet priority to internal switch
priority (based on PCP or DSCP)
- Ethernet PHYs:
- Broadcom PHYs:
- support for Wake-on-LAN for BCM54210E/B50212E
- report LPI counter
- Microsemi PHYs: support RGMII delay configuration (VSC85xx)
- Micrel PHYs: receive timestamp in the frame (LAN8841)
- Realtek PHYs: support optional external PHY clock
- Altera TSE PCS: merge the driver into Lynx PCS which it is
a variant of
- CAN: Kvaser PCIEcan:
- support packet timestamping
- WiFi:
- Intel (iwlwifi):
- major update for new firmware and Multi-Link Operation (MLO)
- configuration rework to drop test devices and split
the different families
- support for segmented PNVM images and power tables
- new vendor entries for PPAG (platform antenna gain) feature
- Qualcomm 802.11ax (ath11k):
- Multiple Basic Service Set Identifier (MBSSID) and
Enhanced MBSSID Advertisement (EMA) support in AP mode
- support factory test mode
- RealTek (rtw89):
- add RSSI based antenna diversity
- support U-NII-4 channels on 5 GHz band
- RealTek (rtl8xxxu):
- AP mode support for 8188f
- support USB RX aggregation for the newer chips
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking changes from Jakub Kicinski:
"WiFi 7 and sendpage changes are the biggest pieces of work for this
release. The latter will definitely require fixes but I think that we
got it to a reasonable point.
Core:
- Rework the sendpage & splice implementations
Instead of feeding data into sockets page by page extend sendmsg
handlers to support taking a reference on the data, controlled by a
new flag called MSG_SPLICE_PAGES
Rework the handling of unexpected-end-of-file to invoke an
additional callback instead of trying to predict what the right
combination of MORE/NOTLAST flags is
Remove the MSG_SENDPAGE_NOTLAST flag completely
- Implement SCM_PIDFD, a new type of CMSG type analogous to
SCM_CREDENTIALS, but it contains pidfd instead of plain pid
- Enable socket busy polling with CONFIG_RT
- Improve reliability and efficiency of reporting for ref_tracker
- Auto-generate a user space C library for various Netlink families
Protocols:
- Allow TCP to shrink the advertised window when necessary, prevent
sk_rcvbuf auto-tuning from growing the window all the way up to
tcp_rmem[2]
- Use per-VMA locking for "page-flipping" TCP receive zerocopy
- Prepare TCP for device-to-device data transfers, by making sure
that payloads are always attached to skbs as page frags
- Make the backoff time for the first N TCP SYN retransmissions
linear. Exponential backoff is unnecessarily conservative
- Create a new MPTCP getsockopt to retrieve all info
(MPTCP_FULL_INFO)
- Avoid waking up applications using TLS sockets until we have a full
record
- Allow using kernel memory for protocol ioctl callbacks, paving the
way to issuing ioctls over io_uring
- Add nolocalbypass option to VxLAN, forcing packets to be fully
encapsulated even if they are destined for a local IP address
- Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
in-kernel ECMP implementation (e.g. Open vSwitch) select the same
link for all packets. Support L4 symmetric hashing in Open vSwitch
- PPPoE: make number of hash bits configurable
- Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
(ipconfig)
- Add layer 2 miss indication and filtering, allowing higher layers
(e.g. ACL filters) to make forwarding decisions based on whether
packet matched forwarding state in lower devices (bridge)
- Support matching on Connectivity Fault Management (CFM) packets
- Hide the "link becomes ready" IPv6 messages by demoting their
printk level to debug
- HSR: don't enable promiscuous mode if device offloads the proto
- Support active scanning in IEEE 802.15.4
- Continue work on Multi-Link Operation for WiFi 7
BPF:
- Add precision propagation for subprogs and callbacks. This allows
maintaining verification efficiency when subprograms are used, or
in fact passing the verifier at all for complex programs,
especially those using open-coded iterators
- Improve BPF's {g,s}setsockopt() length handling. Previously BPF
assumed the length is always equal to the amount of written data.
But some protos allow passing a NULL buffer to discover what the
output buffer *should* be, without writing anything
- Accept dynptr memory as memory arguments passed to helpers
- Add routing table ID to bpf_fib_lookup BPF helper
- Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands
- Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
maps as read-only)
- Show target_{obj,btf}_id in tracing link fdinfo
- Addition of several new kfuncs (most of the names are
self-explanatory):
- Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
and bpf_dynptr_clone().
- bpf_task_under_cgroup()
- bpf_sock_destroy() - force closing sockets
- bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs
Netfilter:
- Relax set/map validation checks in nf_tables. Allow checking
presence of an entry in a map without using the value
- Increase ip_vs_conn_tab_bits range for 64BIT builds
- Allow updating size of a set
- Improve NAT tuple selection when connection is closing
Driver API:
- Integrate netdev with LED subsystem, to allow configuring HW
"offloaded" blinking of LEDs based on link state and activity
(i.e. packets coming in and out)
- Support configuring rate selection pins of SFP modules
- Factor Clause 73 auto-negotiation code out of the drivers, provide
common helper routines
- Add more fool-proof helpers for managing lifetime of MDIO devices
associated with the PCS layer
- Allow drivers to report advanced statistics related to Time Aware
scheduler offload (taprio)
- Allow opting out of VF statistics in link dump, to allow more VFs
to fit into the message
- Split devlink instance and devlink port operations
New hardware / drivers:
- Ethernet:
- Synopsys EMAC4 IP support (stmmac)
- Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
- Marvell 88E6250 7 port switches
- Microchip LAN8650/1 Rev.B0 PHYs
- MediaTek MT7981/MT7988 built-in 1GE PHY driver
- WiFi:
- Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
- Realtek RTL8723DS (SDIO variant)
- Realtek RTL8851BE
- CAN:
- Fintek F81604
Drivers:
- Ethernet NICs:
- Intel (100G, ice):
- support dynamic interrupt allocation
- use meta data match instead of VF MAC addr on slow-path
- nVidia/Mellanox:
- extend link aggregation to handle 4, rather than just 2 ports
- spawn sub-functions without any features by default
- OcteonTX2:
- support HTB (Tx scheduling/QoS) offload
- make RSS hash generation configurable
- support selecting Rx queue using TC filters
- Wangxun (ngbe/txgbe):
- add basic Tx/Rx packet offloads
- add phylink support (SFP/PCS control)
- Freescale/NXP (enetc):
- report TAPRIO packet statistics
- Solarflare/AMD:
- support matching on IP ToS and UDP source port of outer
header
- VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
- add devlink dev info support for EF10
- Virtual NICs:
- Microsoft vNIC:
- size the Rx indirection table based on requested
configuration
- support VLAN tagging
- Amazon vNIC:
- try to reuse Rx buffers if not fully consumed, useful for ARM
servers running with 16kB pages
- Google vNIC:
- support TCP segmentation of >64kB frames
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- enable USXGMII (88E6191X)
- Microchip:
- lan966x: add support for Egress Stage 0 ACL engine
- lan966x: support mapping packet priority to internal switch
priority (based on PCP or DSCP)
- Ethernet PHYs:
- Broadcom PHYs:
- support for Wake-on-LAN for BCM54210E/B50212E
- report LPI counter
- Microsemi PHYs: support RGMII delay configuration (VSC85xx)
- Micrel PHYs: receive timestamp in the frame (LAN8841)
- Realtek PHYs: support optional external PHY clock
- Altera TSE PCS: merge the driver into Lynx PCS which it is a
variant of
- CAN: Kvaser PCIEcan:
- support packet timestamping
- WiFi:
- Intel (iwlwifi):
- major update for new firmware and Multi-Link Operation (MLO)
- configuration rework to drop test devices and split the
different families
- support for segmented PNVM images and power tables
- new vendor entries for PPAG (platform antenna gain) feature
- Qualcomm 802.11ax (ath11k):
- Multiple Basic Service Set Identifier (MBSSID) and Enhanced
MBSSID Advertisement (EMA) support in AP mode
- support factory test mode
- RealTek (rtw89):
- add RSSI based antenna diversity
- support U-NII-4 channels on 5 GHz band
- RealTek (rtl8xxxu):
- AP mode support for 8188f
- support USB RX aggregation for the newer chips"
* tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1602 commits)
net: scm: introduce and use scm_recv_unix helper
af_unix: Skip SCM_PIDFD if scm->pid is NULL.
net: lan743x: Simplify comparison
netlink: Add __sock_i_ino() for __netlink_diag_dump().
net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
Revert "af_unix: Call scm_recv() only after scm_set_cred()."
phylink: ReST-ify the phylink_pcs_neg_mode() kdoc
libceph: Partially revert changes to support MSG_SPLICE_PAGES
net: phy: mscc: fix packet loss due to RGMII delays
net: mana: use vmalloc_array and vcalloc
net: enetc: use vmalloc_array and vcalloc
ionic: use vmalloc_array and vcalloc
pds_core: use vmalloc_array and vcalloc
gve: use vmalloc_array and vcalloc
octeon_ep: use vmalloc_array and vcalloc
net: usb: qmi_wwan: add u-blox 0x1312 composition
perf trace: fix MSG_SPLICE_PAGES build error
ipvlan: Fix return value of ipvlan_queue_xmit()
netfilter: nf_tables: fix underflow in chain reference counter
netfilter: nf_tables: unbind non-anonymous set if rule construction fails
...
The changes queued up for v6.5-rc1 for sysctl are in line with
prior efforts to stop usage of deprecated routines which incur
recursion and also make it hard to remove the empty array element
in each sysctl array declaration. The most difficult user to modify
was parport which required a bit of re-thinking of how to declare shared
sysctls there, Joel Granados has stepped up to the plate to do most of
this work and eventual removal of register_sysctl_table(). That work
ended up saving us about 1465 bytes according to bloat-o-meter. Since
we gained a few bloat-o-meter karma points I moved two rather small
sysctl arrays from kernel/sysctl.c leaving us only two more sysctl
arrays to move left.
Most changes have been tested on linux-next for about a month. The last
straggler patches are a minor parport fix, changes to the sysctl
kernel selftest so to verify correctness and prevent regressions for
the future change he made to provide an alternative solution for the
special sysctl mount point target which was using the now deprecated
sysctl child element.
This is all prep work to now finally be able to remove the empty
array element in all sysctl declarations / registrations which is
expected to save us a bit of bytes all over the kernel. That work
will be tested early after v6.5-rc1 is out.
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Merge tag 'v6.5-rc1-sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull sysctl updates from Luis Chamberlain:
"The changes for sysctl are in line with prior efforts to stop usage of
deprecated routines which incur recursion and also make it hard to
remove the empty array element in each sysctl array declaration.
The most difficult user to modify was parport which required a bit of
re-thinking of how to declare shared sysctls there, Joel Granados has
stepped up to the plate to do most of this work and eventual removal
of register_sysctl_table(). That work ended up saving us about 1465
bytes according to bloat-o-meter. Since we gained a few bloat-o-meter
karma points I moved two rather small sysctl arrays from
kernel/sysctl.c leaving us only two more sysctl arrays to move left.
Most changes have been tested on linux-next for about a month. The
last straggler patches are a minor parport fix, changes to the sysctl
kernel selftest so to verify correctness and prevent regressions for
the future change he made to provide an alternative solution for the
special sysctl mount point target which was using the now deprecated
sysctl child element.
This is all prep work to now finally be able to remove the empty array
element in all sysctl declarations / registrations which is expected
to save us a bit of bytes all over the kernel. That work will be
tested early after v6.5-rc1 is out"
* tag 'v6.5-rc1-sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
sysctl: replace child with an enumeration
sysctl: Remove debugging dump_stack
test_sysclt: Test for registering a mount point
test_sysctl: Add an option to prevent test skip
test_sysctl: Add an unregister sysctl test
test_sysctl: Group node sysctl test under one func
test_sysctl: Fix test metadata getters
parport: plug a sysctl register leak
sysctl: move security keys sysctl registration to its own file
sysctl: move umh sysctl registration to its own file
signal: move show_unhandled_signals sysctl to its own file
sysctl: remove empty dev table
sysctl: Remove register_sysctl_table
sysctl: Refactor base paths registrations
sysctl: stop exporting register_sysctl_table
parport: Removed sysctl related defines
parport: Remove register_sysctl_table from parport_default_proc_register
parport: Remove register_sysctl_table from parport_device_proc_register
parport: Remove register_sysctl_table from parport_proc_register
parport: Move magic number "15" to a define
The changes queued up for v6.5-rc1 for modules are pretty tame, mostly
code removal of moving of code. Only two minor functional changes are
made, the only one which stands out is Sebastian Andrzej Siewior's
simplification of module reference counting by removing preempt_disable()
and that has been tested on linux-next for well over a month without
no regressions. I'm now, I guess, also a kitchen sink for some kallsyms
changes.
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Merge tag 'v6.5-rc1-modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain:
"The changes queued up for modules are pretty tame, mostly code removal
of moving of code.
Only two minor functional changes are made, the only one which stands
out is Sebastian Andrzej Siewior's simplification of module reference
counting by removing preempt_disable() and that has been tested on
linux-next for well over a month without no regressions.
I'm now, I guess, also a kitchen sink for some kallsyms changes"
[ There was a mis-communication about the concurrent module load changes
that I had expected to come through Luis despite me authoring the
patch. So some of the module updates were left hanging in the email
ether, and I just committed them separately.
It's my bad - I should have made it more clear that I expected my
own patches to come through the module tree too. Now they missed
linux-next, but hopefully that won't cause any issues - Linus ]
* tag 'v6.5-rc1-modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
kallsyms: make kallsyms_show_value() as generic function
kallsyms: move kallsyms_show_value() out of kallsyms.c
kallsyms: remove unsed API lookup_symbol_attrs
kallsyms: remove unused arch_get_kallsym() helper
module: Remove preempt_disable() from module reference counting.
This is the new-and-improved attempt at avoiding huge memory load spikes
when the user space boot sequence tries to load hundreds (or even
thousands) of redundant duplicate modules in parallel.
See commit 9828ed3f69 ("module: error out early on concurrent load of
the same module file") for background and an earlier failed attempt that
was reverted.
That earlier attempt just said "concurrently loading the same module is
silly, just open the module file exclusively and return -ETXTBSY if
somebody else is already loading it".
While it is true that concurrent module loads of the same module is
silly, the reason that earlier attempt then failed was that the
concurrently loaded module would often be a prerequisite for another
module.
Thus failing to load the prerequisite would then cause cascading
failures of the other modules, rather than just short-circuiting that
one unnecessary module load.
At the same time, we still really don't want to load the contents of the
same module file hundreds of times, only to then wait for an eventually
successful load, and have everybody else return -EEXIST.
As a result, this takes another approach, and treats concurrent module
loads from the same file as "idempotent" in the inode. So if one module
load is ongoing, we don't start a new one, but instead just wait for the
first one to complete and return the same return value as it did.
So unlike the first attempt, this does not return early: the intent is
not to speed up the boot, but to avoid a thundering herd problem in
allocating memory (both physical and virtual) for a module more than
once.
Also note that this does change behavior: it used to be that when you
had concurrent loads, you'd have one "winner" that would return success,
and everybody else would return -EEXIST.
In contrast, this idempotent logic goes all Oprah on the problem, and
says "You are a winner! And you are a winner! We are ALL winners". But
since there's no possible actual real semantic difference between "you
loaded the module" and "somebody else already loaded the module", this
is more of a feel-good change than an actual honest-to-goodness semantic
change.
Of course, any true Johnny-come-latelies that don't get caught in the
concurrency filter will still return -EEXIST. It's no different from
not even getting a seat at an Oprah taping. That's life.
See the long thread on the kernel mailing list about this all, which
includes some numbers for memory use before and after the patch.
Link: https://lore.kernel.org/lkml/20230524213620.3509138-1-mcgrof@kernel.org/
Reviewed-by: Johan Hovold <johan@kernel.org>
Tested-by: Johan Hovold <johan@kernel.org>
Tested-by: Luis Chamberlain <mcgrof@kernel.org>
Tested-by: Dan Williams <dan.j.williams@intel.com>
Tested-by: Rudi Heitbaum <rudi@heitbaum..com>
Tested-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This will simplify the next step, where we can then key off the inode to
do one idempotent module load.
Let's do the obvious re-organization in one step, and then the new code
in another.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Allow synchronous detection of (e)MMC/SD/SDIO cards
- Fixup error check for ioctls for SPI hosts
- Disable broken SD-Cache support for Kingston Canvas Go Plus from 11/2019
- Disable broken eMMC-Trim support for Kingston EMMC04G-M627
- Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M
MMC host:
- bcm2835: Convert DT bindings to YAML
- mmci: Enable asynchronous probe
- mmci: Transform the ux500 HW-busy detection into a proper state machine
- mmci: Add support for SW busy-end timeouts for the ux500 variants
- mmci_stm32: Add support for sdm32 variant revision v3.0 used on STM32MP25
- mmci_stm32: Improve the tuning sequence
- mtk-sd: Tune polling-period to improve performance
- sdhci: Fixup DMA configuration for 64-bit DMA mode
- sdhci-bcm-kona: Convert DT bindings to YAML
- sdhci-msm: Switch to use the new ICE API
- sdhci-msm: Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
- sdhci-pci-gli: Add support SD Express cards for GL9767
- sdhci-pci-gli: Add support for the Genesys Logic GL9767 variant
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Merge tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Allow synchronous detection of (e)MMC/SD/SDIO cards
- Fixup error check for ioctls for SPI hosts
- Disable broken SD-Cache support for Kingston Canvas Go Plus from 2019
- Disable broken eMMC-Trim support for Kingston EMMC04G-M627
- Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M
MMC host:
- bcm2835: Convert DT bindings to YAML
- mmci:
- Enable asynchronous probe
- Transform the ux500 HW-busy detection into a proper state machine
- Add support for SW busy-end timeouts for the ux500 variants
- mmci_stm32:
- Add support for sdm32 variant revision v3.0 used on STM32MP25
- Improve the tuning sequence
- mtk-sd: Tune polling-period to improve performance
- sdhci: Fixup DMA configuration for 64-bit DMA mode
- sdhci-bcm-kona: Convert DT bindings to YAML
- sdhci-msm:
- Switch to use the new ICE API
- Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
- sdhci-pci-gli:
- Add support SD Express cards for GL9767
- Add support for the Genesys Logic GL9767 variant"
* tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (42 commits)
dt-bindings: mmc: fsl-imx-esdhc: Add imx6ul support
mmc: mmci: Add support for SW busy-end timeouts
mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston Canvas Go Plus from 11/2019
mmc: core: disable TRIM on Kingston EMMC04G-M627
mmc: mmci: stm32: add delay block support for STM32MP25
mmc: mmci: stm32: prepare other delay block support
mmc: mmci: stm32: manage block gap hardware flow control
mmc: mmci: Add support for sdmmc variant revision v3.0
mmc: mmci: add stm32_idmabsize_align parameter
dt-bindings: mmc: mmci: Add st,stm32mp25-sdmmc2 compatible
mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
mmc: mmci: Break out a helper function
mmc: mmci: Use a switch statement machine
mmc: mmci: Use state machine state as exit condition
mmc: mmci: Retry the busy start condition
mmc: mmci: Make busy complete state machine explicit
mmc: mmci: Break out error check in busy detect
mmc: mmci: Stash status while waiting for busy
mmc: mmci: Unwind big if() clause
mmc: mmci: Clear busy_status when starting command
...
* otp:
- Put factory OTP/NVRAM into the entropy pool
- Clean up on error in mtd_otp_nvmem_add()
MTD devices changes:
* sm_ftl: Fix typos in comments
* Use SPDX license headers
* pismo: Switch back to use i2c_driver's .probe()
* mtdpart: Drop useless LIST_HEAD
* st_spi_fsm: Use the devm_clk_get_enabled() helper function
DT binding changes:
* partitions:
- Include TP-Link SafeLoader in allowed list
- Add missing type for "linux,rootfs"
* Extend the nand node names filter
* Create a file for raw NAND chip properties
* Mark nand-ecc-placement deprecated
* Describe nand-ecc-mode
* Prevent NAND chip unevaluated properties in all NAND bindings with a NAND chip
reference.
* Qcom: Fix a property position
* Marvell: Convert to YAML DT schema
Raw NAND chip drivers changes:
* Macronix: OTP access for MX30LFxG18AC
* Add basic Sandisk manufacturer ops
* Add support for Sandisk SDTNQGAMA
Raw NAND controller driver changes:
* Meson:
- Replace integer consts with proper defines
- Allow waiting w/o wired ready/busy pin
- Check buffer length validity
- Fix unaligned DMA buffers handling
- dt-bindings: Fix 'nand-rb' property
* Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported configuration"
as this limitation is no longer true thanks to the recent efforts in improving
the clocks support in this driver
SPI-NAND changes:
* Gigadevice: add support for GD5F2GQ5xExxH
* Macronix: Add support for serial NAND flashes
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Merge tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from
"Core MTD changes:
- otp:
- Put factory OTP/NVRAM into the entropy pool
- Clean up on error in mtd_otp_nvmem_add()
MTD devices changes:
- sm_ftl: Fix typos in comments
- Use SPDX license headers
- pismo: Switch back to use i2c_driver's .probe()
- mtdpart: Drop useless LIST_HEAD
- st_spi_fsm: Use the devm_clk_get_enabled() helper function
DT binding changes:
- partitions:
- Include TP-Link SafeLoader in allowed list
- Add missing type for "linux,rootfs"
- Extend the nand node names filter
- Create a file for raw NAND chip properties
- Mark nand-ecc-placement deprecated
- Describe nand-ecc-mode
- Prevent NAND chip unevaluated properties in all NAND bindings with
a NAND chip reference.
- Qcom: Fix a property position
- Marvell: Convert to YAML DT schema
Raw NAND chip drivers changes:
- Macronix: OTP access for MX30LFxG18AC
- Add basic Sandisk manufacturer ops
- Add support for Sandisk SDTNQGAMA
Raw NAND controller driver changes:
- Meson:
- Replace integer consts with proper defines
- Allow waiting w/o wired ready/busy pin
- Check buffer length validity
- Fix unaligned DMA buffers handling
- dt-bindings: Fix 'nand-rb' property
- Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported
configuration" as this limitation is no longer true thanks to the
recent efforts in improving the clocks support in this driver
SPI-NAND changes:
- Gigadevice: add support for GD5F2GQ5xExxH
- Macronix: Add support for serial NAND flashes"
* tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (38 commits)
dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
dt-bindings: mtd: ti,am654: Prevent unevaluated properties
dt-bindings: mtd: mediatek: Prevent NAND chip unevaluated properties
dt-bindings: mtd: mediatek: Reference raw-nand-chip.yaml
dt-bindings: mtd: stm32: Prevent NAND chip unevaluated properties
dt-bindings: mtd: rockchip: Prevent NAND chip unevaluated properties
dt-bindings: mtd: intel: Prevent NAND chip unevaluated properties
dt-bindings: mtd: denali: Prevent NAND chip unevaluated properties
dt-bindings: mtd: brcmnand: Prevent NAND chip unevaluated properties
dt-bindings: mtd: meson: Prevent NAND chip unevaluated properties
dt-bindings: mtd: sunxi: Prevent NAND chip unevaluated properties
dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Fix a property position
dt-bindings: mtd: Describe nand-ecc-mode
dt-bindings: mtd: Mark nand-ecc-placement deprecated
dt-bindings: mtd: Create a file for raw NAND chip properties
dt-bindings: mtd: Accept nand related node names
mtd: sm_ftl: Fix typos in comments
mtd: otp: clean up on error in mtd_otp_nvmem_add()
...
One small core feature this time around but mostly driver improvements
and additions for SPI:
- Add support for controlling the idle state of MOSI, some systems can
support this and depending on the system integration may need it to
avoid glitching in some situations.
- Support for polling mode in the S3C64xx driver and DMA on the
Qualcomm QSPI driver.
- Support for several Allwinner SoCs, AMD Pensando Elba, Intel Mount
Evans, Renesas RZ/V2M, and ST STM32H7.
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Merge tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"One small core feature this time around but mostly driver improvements
and additions for SPI:
- Add support for controlling the idle state of MOSI, some systems
can support this and depending on the system integration may need
it to avoid glitching in some situations
- Support for polling mode in the S3C64xx driver and DMA on the
Qualcomm QSPI driver
- Support for several Allwinner SoCs, AMD Pensando Elba, Intel Mount
Evans, Renesas RZ/V2M, and ST STM32H7"
* tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits)
spi: dt-bindings: atmel,at91rm9200-spi: fix broken sam9x7 compatible
spi: dt-bindings: atmel,at91rm9200-spi: add sam9x7 compatible
spi: Add support for Renesas CSI
spi: dt-bindings: Add bindings for RZ/V2M CSI
spi: sun6i: Use the new helper to derive the xfer timeout value
spi: atmel: Prevent false timeouts on long transfers
spi: dt-bindings: stm32: do not disable spi-slave property for stm32f4-f7
spi: Create a helper to derive adaptive timeouts
spi: spi-geni-qcom: correctly handle -EPROBE_DEFER from dma_request_chan()
spi: stm32: disable spi-slave property for stm32f4-f7
spi: stm32: introduction of stm32h7 SPI device mode support
spi: stm32: use dmaengine_terminate_{a}sync instead of _all
spi: stm32: renaming of spi_master into spi_controller
spi: dw: Remove misleading comment for Mount Evans SoC
spi: dt-bindings: snps,dw-apb-ssi: Add compatible for Intel Mount Evans SoC
spi: dw: Add compatible for Intel Mount Evans SoC
spi: s3c64xx: Use dev_err_probe()
spi: s3c64xx: Use the managed spi master allocation function
spi: spl022: Probe defer is no error
spi: spi-imx: fix mixing of native and gpio chipselects for imx51/imx53/imx6 variants
...
This release is almost all drivers, there's some small improvements in
the core but otherwise everything is updates to drivers, mostly the
addition of new ones.
There's also a bunch of changes pulled in from the MFD subsystem as
dependencies, Rockchip and TI core MFD code that the regulator drivers
depend on.
I've also yet again managed to put a SPI commit in the regulator tree, I
don't know what it is about those two trees (this for spi-geni-qcom).
- Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a
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Merge tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This release is almost all drivers, there's some small improvements in
the core but otherwise everything is updates to drivers, mostly the
addition of new ones.
There's also a bunch of changes pulled in from the MFD subsystem as
dependencies, Rockchip and TI core MFD code that the regulator drivers
depend on.
I've also yet again managed to put a SPI commit in the regulator tree,
I don't know what it is about those two trees (this for
spi-geni-qcom).
Summary:
- Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a"
* tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (43 commits)
regulator: Add Renesas PMIC RAA215300 driver
regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings
regulator: ltc3676: Use maple tree register cache
regulator: ltc3589: Use maple tree register cache
regulator: helper: Document ramp_delay parameter of regulator_set_ramp_delay_regmap()
regulator: mt6358: Use linear voltage helpers for single range regulators
regulator: mt6358: Const-ify mt6358_regulator_info data structures
regulator: mt6358: Drop *_SSHUB regulators
regulator: mt6358: Merge VCN33_* regulators
regulator: dt-bindings: mt6358: Drop *_sshub regulators
regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators
regulator: dt-bindings: pwm-regulator: Add missing type for "pwm-dutycycle-unit"
regulator: Switch two more i2c drivers back to use .probe()
spi: spi-geni-qcom: Do not do DMA map/unmap inside driver, use framework instead
soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()
regulator: tps6594-regulator: Add driver for TI TPS6594 regulators
regulator: axp20x: Add AXP15060 support
regulator: axp20x: Add support for AXP313a variant
dt-bindings: pfuze100.yaml: Add an entry for interrupts
regulator: stm32-pwr: Fix regulator disabling
...
Another busy release for regmap with the second half fo the maple tree
register cache implementation, there's some smaller optimisations that
could be done but this should now be able to replace the rbtree cache
for most devices.
We also had a followup from Aidan MacDonald's refactoring of some of the
regmap-irq interfaces, the conversion is complete so the old interfaces
are removed. This means that even with the new features for the maple
tree cache we'd have a nice negative diffstat were it not for the
addition of a bunch more KUnit coverage.
There's one GPIO patch in here, it was a dependency for a cleanup of an
API in the regmap-irq code for which the gpio-104-dio-48e driver was the
only user.
Highlights:
- The maple tree cache can now load in default values more efficiently,
and is capabale of syncing multiple registers in a single write
during cache sync.
- More KUnit coverage, including some coverage for raw I/O and a dummy
RAM backed cache to support it.
- Removal of several old interfaces in regmap-irq now all the users
have been modernised.
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Merge tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Another busy release for regmap with the second half of the maple tree
register cache implementation, there's some smaller optimisations that
could be done but this should now be able to replace the rbtree cache
for most devices.
We also had a followup from Aidan MacDonald's refactoring of some of
the regmap-irq interfaces, the conversion is complete so the old
interfaces are removed. This means that even with the new features for
the maple tree cache we'd have a nice negative diffstat were it not
for the addition of a bunch more KUnit coverage.
There's one GPIO patch in here, it was a dependency for a cleanup of
an API in the regmap-irq code for which the gpio-104-dio-48e driver
was the only user.
Highlights:
- The maple tree cache can now load in default values more
efficiently, and is capabale of syncing multiple registers
in a single write during cache sync
- More KUnit coverage, including some coverage for raw I/O
and a dummy RAM backed cache to support it
- Removal of several old interfaces in regmap-irq now all
users have been modernised"
* tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (23 commits)
regmap: Allow reads from write only registers with the flat cache
regmap: Drop early readability check
regmap: Check for register readability before checking cache during read
regmap: Add test to make sure we don't sync to read only registers
regmap: Add a test case for write only registers
regmap: Add test that writes to write only registers are prevented
regmap: Add debugfs file for forcing field writes
regmap: Don't check for changes in regcache_set_val()
regmap: maple: Implement block sync for the maple tree cache
regmap: Provide basic KUnit coverage for the raw register I/O
regmap: Provide a ram backed regmap with raw support
regmap: Add missing cache_only checks
regmap: regmap-irq: Move handle_post_irq to before pm_runtime_put
regmap: Load register defaults in blocks rather than register by register
regmap: mmio: Allow passing an empty config->reg_stride
regmap-irq: Drop backward compatibility for inverted mask/unmask
regmap-irq: Minor adjustments to .handle_mask_sync()
regmap-irq: Remove support for not_fixed_stride
regmap-irq: Remove type registers
regmap-irq: Remove virtual registers
...
The memory encryption initialization logic was moved from init/main.c
into arch_cpu_finalize_init() in commit 439e17576e ("init, x86: Move
mem_encrypt_init() into arch_cpu_finalize_init()"), but a stale
declaration for the init function was left in <linux/init.h>.
And didn't cause any problems if you had X86_MEM_ENCRYPT enabled, which
apparently everybody involved did have. See also commit 0a9567ac5e
("x86/mem_encrypt: Unbreak the AMD_MEM_ENCRYPT=n build") in this whole
sad saga of conflicting declarations for different situations.
Reported-by: Matthew Wilcox <willy@infradead.org>
Fixes: 439e17576e init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit ca5e863233 ("mm/gup: remove vmas parameter from
get_user_pages_remote()") removed the vma argument from GUP handling,
and instead added a helper function (get_user_page_vma_remote()) that
looks it up separately using 'vma_lookup()'. And then converted
existing users that needed a vma to use the helper instead.
However, the helper function intentionally acts exactly like the old
get_user_pages_remote() did, and only fills in 'vma' on successful page
lookup. Fine so far.
However, __access_remote_vm() wants the vma even for the unsuccessful
case, and used to do a
vma = vma_lookup(mm, addr);
explicitly to look it up when the get_user_page() failed.
However, that conversion commit incorrectly removed that vma lookup,
thinking that get_user_page_vma_remote() would have done it. Not so.
So add the vma_lookup() back in.
Fixes: ca5e863233 ("mm/gup: remove vmas parameter from get_user_pages_remote()")
Cc: Lorenzo Stoakes <lstoakes@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
top-level directories.
- Douglas Anderson has added a new "buddy" mode to the hardlockup
detector. It permits the detector to work on architectures which
cannot provide the required interrupts, by having CPUs periodically
perform checks on other CPUs.
- Zhen Lei has enhanced kexec's ability to support two crash regions.
- Petr Mladek has done a lot of cleanup on the hard lockup detector's
Kconfig entries.
- And the usual bunch of singleton patches in various places.
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Merge tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-mm updates from Andrew Morton:
- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in top-level
directories
- Douglas Anderson has added a new "buddy" mode to the hardlockup
detector. It permits the detector to work on architectures which
cannot provide the required interrupts, by having CPUs periodically
perform checks on other CPUs
- Zhen Lei has enhanced kexec's ability to support two crash regions
- Petr Mladek has done a lot of cleanup on the hard lockup detector's
Kconfig entries
- And the usual bunch of singleton patches in various places
* tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits)
kernel/time/posix-stubs.c: remove duplicated include
ocfs2: remove redundant assignment to variable bit_off
watchdog/hardlockup: fix typo in config HARDLOCKUP_DETECTOR_PREFER_BUDDY
powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h
devres: show which resource was invalid in __devm_ioremap_resource()
watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH
watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64
watchdog/hardlockup: make HAVE_NMI_WATCHDOG sparc64-specific
watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h
watchdog/hardlockup: make the config checks more straightforward
watchdog/hardlockup: sort hardlockup detector related config values a logical way
watchdog/hardlockup: move SMP barriers from common code to buddy code
watchdog/buddy: simplify the dependency for HARDLOCKUP_DETECTOR_PREFER_BUDDY
watchdog/buddy: don't copy the cpumask in watchdog_next_cpu()
watchdog/buddy: cleanup how watchdog_buddy_check_hardlockup() is called
watchdog/hardlockup: remove softlockup comment in touch_nmi_watchdog()
watchdog/hardlockup: in watchdog_hardlockup_check() use cpumask_copy()
watchdog/hardlockup: don't use raw_cpu_ptr() in watchdog_hardlockup_kick()
watchdog/hardlockup: HAVE_NMI_WATCHDOG must implement watchdog_hardlockup_probe()
watchdog/hardlockup: keep kernel.nmi_watchdog sysctl as 0444 if probe fails
...
- Yosry has also eliminated cgroup's atomic rstat flushing.
- Nhat Pham adds the new cachestat() syscall. It provides userspace
with the ability to query pagecache status - a similar concept to
mincore() but more powerful and with improved usability.
- Mel Gorman provides more optimizations for compaction, reducing the
prevalence of page rescanning.
- Lorenzo Stoakes has done some maintanance work on the get_user_pages()
interface.
- Liam Howlett continues with cleanups and maintenance work to the maple
tree code. Peng Zhang also does some work on maple tree.
- Johannes Weiner has done some cleanup work on the compaction code.
- David Hildenbrand has contributed additional selftests for
get_user_pages().
- Thomas Gleixner has contributed some maintenance and optimization work
for the vmalloc code.
- Baolin Wang has provided some compaction cleanups,
- SeongJae Park continues maintenance work on the DAMON code.
- Huang Ying has done some maintenance on the swap code's usage of
device refcounting.
- Christoph Hellwig has some cleanups for the filemap/directio code.
- Ryan Roberts provides two patch series which yield some
rationalization of the kernel's access to pte entries - use the provided
APIs rather than open-coding accesses.
- Lorenzo Stoakes has some fixes to the interaction between pagecache
and directio access to file mappings.
- John Hubbard has a series of fixes to the MM selftesting code.
- ZhangPeng continues the folio conversion campaign.
- Hugh Dickins has been working on the pagetable handling code, mainly
with a view to reducing the load on the mmap_lock.
- Catalin Marinas has reduced the arm64 kmalloc() minimum alignment from
128 to 8.
- Domenico Cerasuolo has improved the zswap reclaim mechanism by
reorganizing the LRU management.
- Matthew Wilcox provides some fixups to make gfs2 work better with the
buffer_head code.
- Vishal Moola also has done some folio conversion work.
- Matthew Wilcox has removed the remnants of the pagevec code - their
functionality is migrated over to struct folio_batch.
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Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton:
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs
- Yosry has also eliminated cgroup's atomic rstat flushing
- Nhat Pham adds the new cachestat() syscall. It provides userspace
with the ability to query pagecache status - a similar concept to
mincore() but more powerful and with improved usability
- Mel Gorman provides more optimizations for compaction, reducing the
prevalence of page rescanning
- Lorenzo Stoakes has done some maintanance work on the
get_user_pages() interface
- Liam Howlett continues with cleanups and maintenance work to the
maple tree code. Peng Zhang also does some work on maple tree
- Johannes Weiner has done some cleanup work on the compaction code
- David Hildenbrand has contributed additional selftests for
get_user_pages()
- Thomas Gleixner has contributed some maintenance and optimization
work for the vmalloc code
- Baolin Wang has provided some compaction cleanups,
- SeongJae Park continues maintenance work on the DAMON code
- Huang Ying has done some maintenance on the swap code's usage of
device refcounting
- Christoph Hellwig has some cleanups for the filemap/directio code
- Ryan Roberts provides two patch series which yield some
rationalization of the kernel's access to pte entries - use the
provided APIs rather than open-coding accesses
- Lorenzo Stoakes has some fixes to the interaction between pagecache
and directio access to file mappings
- John Hubbard has a series of fixes to the MM selftesting code
- ZhangPeng continues the folio conversion campaign
- Hugh Dickins has been working on the pagetable handling code, mainly
with a view to reducing the load on the mmap_lock
- Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
from 128 to 8
- Domenico Cerasuolo has improved the zswap reclaim mechanism by
reorganizing the LRU management
- Matthew Wilcox provides some fixups to make gfs2 work better with the
buffer_head code
- Vishal Moola also has done some folio conversion work
- Matthew Wilcox has removed the remnants of the pagevec code - their
functionality is migrated over to struct folio_batch
* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
mm/hugetlb: remove hugetlb_set_page_subpool()
mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
hugetlb: revert use of page_cache_next_miss()
Revert "page cache: fix page_cache_next/prev_miss off by one"
mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
mm: memcg: rename and document global_reclaim()
mm: kill [add|del]_page_to_lru_list()
mm: compaction: convert to use a folio in isolate_migratepages_block()
mm: zswap: fix double invalidate with exclusive loads
mm: remove unnecessary pagevec includes
mm: remove references to pagevec
mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
mm: remove struct pagevec
net: convert sunrpc from pagevec to folio_batch
i915: convert i915_gpu_error to use a folio_batch
pagevec: rename fbatch_count()
mm: remove check_move_unevictable_pages()
drm: convert drm_gem_put_pages() to use a folio_batch
i915: convert shmem_sg_free_table() to use a folio_batch
scatterlist: add sg_set_folio()
...
brings some order to the documentation directory, declutters the top-level
directory, and makes the documentation organization more closely match that
of the source.
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Merge tag 'docs-arm64-move' of git://git.lwn.net/linux
Pull arm64 documentation move from Jonathan Corbet:
"Move the arm64 architecture documentation under Documentation/arch/.
This brings some order to the documentation directory, declutters the
top-level directory, and makes the documentation organization more
closely match that of the source"
* tag 'docs-arm64-move' of git://git.lwn.net/linux:
perf arm-spe: Fix a dangling Documentation/arm64 reference
mm: Fix a dangling Documentation/arm64 reference
arm64: Fix dangling references to Documentation/arm64
dt-bindings: fix dangling Documentation/arm64 reference
docs: arm64: Move arm64 documentation under Documentation/arch/
- Fix KMSAN vs FORTIFY in strlcpy/strlcat (Alexander Potapenko)
- Convert strreplace() to return string start (Andy Shevchenko)
- Flexible array conversions (Arnd Bergmann, Wyes Karny, Kees Cook)
- Add missing function prototypes seen with W=1 (Arnd Bergmann)
- Fix strscpy() kerndoc typo (Arne Welzel)
- Replace strlcpy() with strscpy() across many subsystems which were
either Acked by respective maintainers or were trivial changes that
went ignored for multiple weeks (Azeem Shaikh)
- Remove unneeded cc-option test for UBSAN_TRAP (Nick Desaulniers)
- Add KUnit tests for strcat()-family
- Enable KUnit tests of FORTIFY wrappers under UML
- Add more complete FORTIFY protections for strlcat()
- Add missed disabling of FORTIFY for all arch purgatories.
- Enable -fstrict-flex-arrays=3 globally
- Tightening UBSAN_BOUNDS when using GCC
- Improve checkpatch to check for strcpy, strncpy, and fake flex arrays
- Improve use of const variables in FORTIFY
- Add requested struct_size_t() helper for types not pointers
- Add __counted_by macro for annotating flexible array size members
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Merge tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
"There are three areas of note:
A bunch of strlcpy()->strscpy() conversions ended up living in my tree
since they were either Acked by maintainers for me to carry, or got
ignored for multiple weeks (and were trivial changes).
The compiler option '-fstrict-flex-arrays=3' has been enabled
globally, and has been in -next for the entire devel cycle. This
changes compiler diagnostics (though mainly just -Warray-bounds which
is disabled) and potential UBSAN_BOUNDS and FORTIFY _warning_
coverage. In other words, there are no new restrictions, just
potentially new warnings. Any new FORTIFY warnings we've seen have
been fixed (usually in their respective subsystem trees). For more
details, see commit df8fc4e934.
The under-development compiler attribute __counted_by has been added
so that we can start annotating flexible array members with their
associated structure member that tracks the count of flexible array
elements at run-time. It is possible (likely?) that the exact syntax
of the attribute will change before it is finalized, but GCC and Clang
are working together to sort it out. Any changes can be made to the
macro while we continue to add annotations.
As an example of that last case, I have a treewide commit waiting with
such annotations found via Coccinelle:
https://git.kernel.org/linus/adc5b3cb48a049563dc673f348eab7b6beba8a9b
Also see commit dd06e72e68 for more details.
Summary:
- Fix KMSAN vs FORTIFY in strlcpy/strlcat (Alexander Potapenko)
- Convert strreplace() to return string start (Andy Shevchenko)
- Flexible array conversions (Arnd Bergmann, Wyes Karny, Kees Cook)
- Add missing function prototypes seen with W=1 (Arnd Bergmann)
- Fix strscpy() kerndoc typo (Arne Welzel)
- Replace strlcpy() with strscpy() across many subsystems which were
either Acked by respective maintainers or were trivial changes that
went ignored for multiple weeks (Azeem Shaikh)
- Remove unneeded cc-option test for UBSAN_TRAP (Nick Desaulniers)
- Add KUnit tests for strcat()-family
- Enable KUnit tests of FORTIFY wrappers under UML
- Add more complete FORTIFY protections for strlcat()
- Add missed disabling of FORTIFY for all arch purgatories.
- Enable -fstrict-flex-arrays=3 globally
- Tightening UBSAN_BOUNDS when using GCC
- Improve checkpatch to check for strcpy, strncpy, and fake flex
arrays
- Improve use of const variables in FORTIFY
- Add requested struct_size_t() helper for types not pointers
- Add __counted_by macro for annotating flexible array size members"
* tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (54 commits)
netfilter: ipset: Replace strlcpy with strscpy
uml: Replace strlcpy with strscpy
um: Use HOST_DIR for mrproper
kallsyms: Replace all non-returning strlcpy with strscpy
sh: Replace all non-returning strlcpy with strscpy
of/flattree: Replace all non-returning strlcpy with strscpy
sparc64: Replace all non-returning strlcpy with strscpy
Hexagon: Replace all non-returning strlcpy with strscpy
kobject: Use return value of strreplace()
lib/string_helpers: Change returned value of the strreplace()
jbd2: Avoid printing outside the boundary of the buffer
checkpatch: Check for 0-length and 1-element arrays
riscv/purgatory: Do not use fortified string functions
s390/purgatory: Do not use fortified string functions
x86/purgatory: Do not use fortified string functions
acpi: Replace struct acpi_table_slit 1-element array with flex-array
clocksource: Replace all non-returning strlcpy with strscpy
string: use __builtin_memcpy() in strlcpy/strlcat
staging: most: Replace all non-returning strlcpy with strscpy
drm/i2c: tda998x: Replace all non-returning strlcpy with strscpy
...
- Fix a few comments for correctness and typos (Baruch Siach)
- Small simplifications for binfmt (Christophe JAILLET)
- Set p_align to 4 for PT_NOTE in core dump (Fangrui Song)
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Merge tag 'execve-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook:
- Fix a few comments for correctness and typos (Baruch Siach)
- Small simplifications for binfmt (Christophe JAILLET)
- Set p_align to 4 for PT_NOTE in core dump (Fangrui Song)
* tag 'execve-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
binfmt_elf: fix comment typo s/reset/regset/
elf: correct note name comment
binfmt: Slightly simplify elf_fdpic_map_file()
binfmt: Use struct_size()
coredump, vmcore: Set p_align to 4 for PT_NOTE
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Merge tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next
Pull smack updates from Casey Schaufler:
"There are two patches, both of which change how Smack initializes the
SMACK64TRANSMUTE extended attribute.
The first corrects the behavior of overlayfs, which creates inodes
differently from other filesystems. The second ensures that transmute
attributes specified by mount options are correctly assigned"
* tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next:
smack: Record transmuting in smk_transmuted
smack: Retrieve transmuting information in smack_inode_getsecurity()
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Merge tag 'integrity-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem updates from Mimi Zohar:
"An i_version change, one bug fix, and three kernel doc fixes:
- instead of IMA detecting file change by directly accesssing
i_version, it now calls vfs_getattr_nosec().
- fix a race condition when inserting a new node in the iint rb-tree"
* tag 'integrity-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: Fix build warnings
evm: Fix build warnings
evm: Complete description of evm_inode_setattr()
integrity: Fix possible multiple allocation in integrity_inode_get()
IMA: use vfs_getattr_nosec to get the i_version
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Merge tag 'lsm-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm updates from Paul Moore:
- A SafeSetID patch to correct what appears to be a cut-n-paste typo in
the code causing a UID to be printed where a GID was desired.
This is coming via the LSM tree because we haven't been able to get a
response from the SafeSetID maintainer (Micah Morton) in several
months. Hopefully we are able to get in touch with Micah, but until
we do I'm going to pick them up in the LSM tree.
- A small fix to the reiserfs LSM xattr code.
We're continuing to work through some issues with the reiserfs code
as we try to fixup the LSM xattr handling, but in the process we're
uncovering some ugly problems in reiserfs and we may just end up
removing the LSM xattr support in reiserfs prior to reiserfs'
removal.
For better or worse, this shouldn't impact any of the reiserfs users,
as we discovered that LSM xattrs on reiserfs were completely broken,
meaning no one is currently using the combo of reiserfs and a file
labeling LSM.
- A tweak to how the cap_user_data_t struct/typedef is declared in the
header file to appease the Sparse gods.
- In the process of trying to sort out the SafeSetID lost-maintainer
problem I realized that I needed to update the labeled networking
entry to "Supported".
- Minor comment/documentation and spelling fixes.
* tag 'lsm-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm:
device_cgroup: Fix kernel-doc warnings in device_cgroup
SafeSetID: fix UID printed instead of GID
MAINTAINERS: move labeled networking to "supported"
capability: erase checker warnings about struct __user_cap_data_struct
lsm: fix a number of misspellings
reiserfs: Initialize sec->length in reiserfs_security_init().
capability: fix kernel-doc warnings in capability.c
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Merge tag 'selinux-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore:
- Thanks to help from the MPTCP folks, it looks like we have finally
sorted out a proper solution to the MPTCP socket labeling issue, see
the new security_mptcp_add_subflow() LSM hook.
- Fix the labeled NFS handling such that a labeled NFS share mounted
prior to the initial SELinux policy load is properly labeled once a
policy is loaded; more information in the commit description.
- Two patches to security/selinux/Makefile, the first took the cleanups
in v6.4 a bit further and the second removed the grouped targets
support as that functionality doesn't appear to be properly supported
prior to make v4.3.
- Deprecate the "fs" object context type in SELinux policies. The fs
object context type was an old vestige that was introduced back in
v2.6.12-rc2 but never really used.
- A number of small changes that remove dead code, clean up some
awkward bits, and generally improve the quality of the code. See the
individual commit descriptions for more information.
* tag 'selinux-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: avoid bool as identifier name
selinux: fix Makefile for versions of make < v4.3
selinux: make labeled NFS work when mounted before policy load
selinux: cleanup exit_sel_fs() declaration
selinux: deprecated fs ocon
selinux: make header files self-including
selinux: keep context struct members in sync
selinux: Implement mptcp_add_subflow hook
security, lsm: Introduce security_mptcp_add_subflow()
selinux: small cleanups in selinux_audit_rule_init()
selinux: declare read-only data arrays const
selinux: retain const qualifier on string literal in avtab_hash_eval()
selinux: drop return at end of void function avc_insert()
selinux: avc: drop unused function avc_disable()
selinux: adjust typos in comments
selinux: do not leave dangling pointer behind
selinux: more Makefile tweaks
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Merge tag 'audit-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit update from Paul Moore:
"A single audit patch that resolves two compiler warnings regarding
missing function prototypes"
* tag 'audit-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit:
audit: avoid missing-prototype warnings
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Merge tag 'landlock-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock updates from Mickaël Salaün:
"Add support for Landlock to UML.
To do this, this fixes the way hostfs manages inodes according to the
underlying filesystem [1]. They are now properly handled as for other
filesystems, which enables Landlock support (and probably other
features).
This also extends Landlock's tests with 6 pseudo filesystems,
including hostfs"
[1] https://lore.kernel.org/all/20230612191430.339153-1-mic@digikod.net/
* tag 'landlock-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
selftests/landlock: Add hostfs tests
selftests/landlock: Add tests for pseudo filesystems
selftests/landlock: Make mounts configurable
selftests/landlock: Add supports_filesystem() helper
selftests/landlock: Don't create useless file layouts
hostfs: Fix ephemeral inodes
* Whenever cpuset needs to rebuild sched_domain, it walked all tasks looking
for DEADLINE tasks as they need to be accounted on the new domain. Walking
all tasks can be expensive and there may not be any DEADLINE tasks at all.
Task iteration is now omitted if there are no DEADLINE tasks.
* Fixes DEADLINE bandwidth misaccounting after task migration failures.
* When no controller is enabled, -Wstringop-overflow warning is triggered.
The fix patch added an early exit which is too eager and got reverted for
now. Will fix later.
* Everything else are minor cleanups.
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Merge tag 'cgroup-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo:
- Whenever cpuset needs to rebuild sched_domain, it walked all tasks
looking for DEADLINE tasks as they need to be accounted on the new
domain. Walking all tasks can be expensive and there may not be any
DEADLINE tasks at all. Task iteration is now omitted if there are no
DEADLINE tasks
- Fixes DEADLINE bandwidth misaccounting after task migration failures
- When no controller is enabled, -Wstringop-overflow warning is
triggered. The fix patch added an early exit which is too eager and
got reverted for now. Will fix later
- Everything else is minor cleanups
* tag 'cgroup-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
Revert "cgroup: Avoid -Wstringop-overflow warnings"
cgroup/misc: Expose misc.current on cgroup v2 root
cgroup: Avoid -Wstringop-overflow warnings
cgroup: remove obsolete comment on cgroup_on_dfl()
cgroup: remove unused task_cgroup_path()
cgroup/cpuset: remove unneeded header files
cgroup: make cgroup_is_threaded() and cgroup_is_thread_root() static
rdmacg: fix kernel-doc warnings in rdmacg
cgroup: Replace the css_set call with cgroup_get
cgroup: remove unused macro for_each_e_css()
cgroup: Update out-of-date comment in cgroup_migrate()
cgroup: Replace all non-returning strlcpy with strscpy
cgroup/cpuset: remove unneeded header files
cgroup/cpuset: Free DL BW in case can_attach() fails
sched/deadline: Create DL BW alloc, free & check overflow interface
cgroup/cpuset: Iterate only if DEADLINE tasks are present
sched/cpuset: Keep track of SCHED_DEADLINE task in cpusets
sched/cpuset: Bring back cpuset_mutex
cgroup/cpuset: Rename functions dealing with DEADLINE accounting
For historical reasons, unbound workqueues with max concurrency limit of 1
are considered ordered, even though the concurrency limit hasn't been
system-wide for a long time. This creates ambiguity around whether ordered
execution is actually required for correctness, which was actually confusing
for e.g. btrfs (btrfs updates are being routed through the btrfs tree).
There aren't that many users in the tree which use the combination and there
are pending improvements to unbound workqueue affinity handling which will
make inadvertent use of ordered workqueue a bigger loss. This pull request
clarifies the situation for most of them by updating the ones which require
ordered execution to use alloc_ordered_workqueue().
There are some conversions being routed through subsystem-specific trees and
likely a few stragglers. Once they're all converted, workqueue can trigger a
warning on unbound + @max_active==1 usages and eventually drop the implicit
ordered behavior.
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Merge tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull ordered workqueue creation updates from Tejun Heo:
"For historical reasons, unbound workqueues with max concurrency limit
of 1 are considered ordered, even though the concurrency limit hasn't
been system-wide for a long time.
This creates ambiguity around whether ordered execution is actually
required for correctness, which was actually confusing for e.g. btrfs
(btrfs updates are being routed through the btrfs tree).
There aren't that many users in the tree which use the combination and
there are pending improvements to unbound workqueue affinity handling
which will make inadvertent use of ordered workqueue a bigger loss.
This clarifies the situation for most of them by updating the ones
which require ordered execution to use alloc_ordered_workqueue().
There are some conversions being routed through subsystem-specific
trees and likely a few stragglers. Once they're all converted,
workqueue can trigger a warning on unbound + @max_active==1 usages and
eventually drop the implicit ordered behavior"
* tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
rxrpc: Use alloc_ordered_workqueue() to create ordered workqueues
net: qrtr: Use alloc_ordered_workqueue() to create ordered workqueues
net: wwan: t7xx: Use alloc_ordered_workqueue() to create ordered workqueues
dm integrity: Use alloc_ordered_workqueue() to create ordered workqueues
media: amphion: Use alloc_ordered_workqueue() to create ordered workqueues
scsi: NCR5380: Use default @max_active for hostdata->work_q
media: coda: Use alloc_ordered_workqueue() to create ordered workqueues
crypto: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues
wifi: ath10/11/12k: Use alloc_ordered_workqueue() to create ordered workqueues
wifi: mwifiex: Use default @max_active for workqueues
wifi: iwlwifi: Use default @max_active for trans_pcie->rba.alloc_wq
xen/pvcalls: Use alloc_ordered_workqueue() to create ordered workqueues
virt: acrn: Use alloc_ordered_workqueue() to create ordered workqueues
net: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues
net: thunderx: Use alloc_ordered_workqueue() to create ordered workqueues
greybus: Use alloc_ordered_workqueue() to create ordered workqueues
powerpc, workqueue: Use alloc_ordered_workqueue() to create ordered workqueues
* Concurrency-managed per-cpu work items that hog CPUs and delay the
execution of other work items are now automatically detected and excluded
from concurrency management. Reporting on such work items can also be
enabled through a config option.
* Added tools/workqueue/wq_monitor.py which improves visibility into
workqueue usages and behaviors.
* Includes Arnd's minimal fix for gcc-13 enum warning on 32bit compiles.
This conflicts with afa4bb778e ("workqueue: clean up WORK_* constant
types, clarify masking") in master. Can be resolved by picking the master
version.
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Merge tag 'wq-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
- Concurrency-managed per-cpu work items that hog CPUs and delay the
execution of other work items are now automatically detected and
excluded from concurrency management. Reporting on such work items
can also be enabled through a config option.
- Added tools/workqueue/wq_monitor.py which improves visibility into
workqueue usages and behaviors.
- Arnd's minimal fix for gcc-13 enum warning on 32bit compiles,
superseded by commit afa4bb778e in mainline.
* tag 'wq-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: Disable per-cpu CPU hog detection when wq_cpu_intensive_thresh_us is 0
workqueue: Fix WARN_ON_ONCE() triggers in worker_enter_idle()
workqueue: fix enum type for gcc-13
workqueue: Track and monitor per-workqueue CPU time usage
workqueue: Report work funcs that trigger automatic CPU_INTENSIVE mechanism
workqueue: Automatically mark CPU-hogging work items CPU_INTENSIVE
workqueue: Improve locking rule description for worker fields
workqueue: Move worker_set/clr_flags() upwards
workqueue: Re-order struct worker fields
workqueue: Add pwq->stats[] and a monitoring script
Further upgrade queue_work_on() comment
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Merge tag 'for-linus-6.5-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- three patches adding missing prototypes
- a fix for finding the iBFT in a Xen dom0 for supporting diskless
iSCSI boot
* tag 'for-linus-6.5-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86: xen: add missing prototypes
x86/xen: add prototypes for paravirt mmu functions
iscsi_ibft: Fix finding the iBFT under Xen Dom 0
xen: xen_debug_interrupt prototype to global header
- Fix the style of protected key API driver source: use
x-mas tree for all local variable declarations.
- Rework protected key API driver to not use the struct
pkey_protkey and pkey_clrkey anymore. Both structures
have a fixed size buffer, but with the support of ECC
protected key these buffers are not big enough. Use
dynamic buffers internally and transparently for
userspace.
- Add support for a new 'non CCA clear key token' with
ECC clear keys supported: ECC P256, ECC P384, ECC P521,
ECC ED25519 and ECC ED448. This makes it possible to
derive a protected key from the ECC clear key input via
PKEY_KBLOB2PROTK3 ioctl, while currently the only way
to derive is via PCKMO instruction.
- The s390 PMU of PAI crypto and extension 1 NNPA counters
use atomic_t for reference counting. Replace this with
the proper data type refcount_t.
- Select ARCH_SUPPORTS_INT128, but limit this to clang for
now, since gcc generates inefficient code, which may lead
to stack overflows.
- Replace one-element array with flexible-array member in
struct vfio_ccw_parent and refactor the rest of the code
accordingly. Also, prefer struct_size() over sizeof() open-
coded versions.
- Introduce OS_INFO_FLAGS_ENTRY pointing to a flags field and
OS_INFO_FLAG_REIPL_CLEAR flag that informs a dumper whether
the system memory should be cleared or not once dumped.
- Fix a hang when a user attempts to remove a VFIO-AP mediated
device attached to a guest: add VFIO_DEVICE_GET_IRQ_INFO and
VFIO_DEVICE_SET_IRQS IOCTLs and wire up the VFIO bus driver
callback to request a release of the device.
- Fix calculation for R_390_GOTENT relocations for modules.
- Allow any user space process with CAP_PERFMON capability
read and display the CPU Measurement facility counter sets.
- Rework large statically-defined per-CPU cpu_cf_events data
structure and replace it with dynamically allocated structures
created when a perf_event_open() system call is invoked or
/dev/hwctr device is accessed.
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Merge tag 's390-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev:
- Fix the style of protected key API driver source: use x-mas tree for
all local variable declarations
- Rework protected key API driver to not use the struct pkey_protkey
and pkey_clrkey anymore. Both structures have a fixed size buffer,
but with the support of ECC protected key these buffers are not big
enough. Use dynamic buffers internally and transparently for
userspace
- Add support for a new 'non CCA clear key token' with ECC clear keys
supported: ECC P256, ECC P384, ECC P521, ECC ED25519 and ECC ED448.
This makes it possible to derive a protected key from the ECC clear
key input via PKEY_KBLOB2PROTK3 ioctl, while currently the only way
to derive is via PCKMO instruction
- The s390 PMU of PAI crypto and extension 1 NNPA counters use atomic_t
for reference counting. Replace this with the proper data type
refcount_t
- Select ARCH_SUPPORTS_INT128, but limit this to clang for now, since
gcc generates inefficient code, which may lead to stack overflows
- Replace one-element array with flexible-array member in struct
vfio_ccw_parent and refactor the rest of the code accordingly. Also,
prefer struct_size() over sizeof() open- coded versions
- Introduce OS_INFO_FLAGS_ENTRY pointing to a flags field and
OS_INFO_FLAG_REIPL_CLEAR flag that informs a dumper whether the
system memory should be cleared or not once dumped
- Fix a hang when a user attempts to remove a VFIO-AP mediated device
attached to a guest: add VFIO_DEVICE_GET_IRQ_INFO and
VFIO_DEVICE_SET_IRQS IOCTLs and wire up the VFIO bus driver callback
to request a release of the device
- Fix calculation for R_390_GOTENT relocations for modules
- Allow any user space process with CAP_PERFMON capability read and
display the CPU Measurement facility counter sets
- Rework large statically-defined per-CPU cpu_cf_events data structure
and replace it with dynamically allocated structures created when a
perf_event_open() system call is invoked or /dev/hwctr device is
accessed
* tag 's390-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/cpum_cf: rework PER_CPU_DEFINE of struct cpu_cf_events
s390/cpum_cf: open access to hwctr device for CAP_PERFMON privileged process
s390/module: fix rela calculation for R_390_GOTENT
s390/vfio-ap: wire in the vfio_device_ops request callback
s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl
s390/vfio-ap: realize the VFIO_DEVICE_GET_IRQ_INFO ioctl
s390/pkey: add support for ecc clear key
s390/pkey: do not use struct pkey_protkey
s390/pkey: introduce reverse x-mas trees
s390/zcore: conditionally clear memory on reipl
s390/ipl: add REIPL_CLEAR flag to os_info
vfio/ccw: use struct_size() helper
vfio/ccw: replace one-element array with flexible-array member
s390: select ARCH_SUPPORTS_INT128
s390/pai_ext: replace atomic_t with refcount_t
s390/pai_crypto: replace atomic_t with refcount_t
- clean up platform_* interface of the xtensa architecture
- enable HAVE_ASM_MODVERSIONS
- drop ARCH_WANT_FRAME_POINTERS
- clean up unaligned access exception handler
- provide handler for load/store exceptions
- various small fixes and cleanups
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Merge tag 'xtensa-20230627' of https://github.com/jcmvbkbc/linux-xtensa
Pull xtensa updates from Max Filippov:
- clean up platform_* interface of the xtensa architecture
- enable HAVE_ASM_MODVERSIONS
- drop ARCH_WANT_FRAME_POINTERS
- clean up unaligned access exception handler
- provide handler for load/store exceptions
- various small fixes and cleanups
* tag 'xtensa-20230627' of https://github.com/jcmvbkbc/linux-xtensa:
xtensa: dump userspace code around the exception PC
xtensa: rearrange show_stack output
xtensa: add load/store exception handler
xtensa: rearrange unaligned exception handler
xtensa: always install slow handler for unaligned access exception
xtensa: move early_trap_init from kasan_early_init to init_arch
xtensa: drop ARCH_WANT_FRAME_POINTERS
xtensa: report trax and perf counters in cpuinfo
xtensa: add asm-prototypes.h
xtensa: only build __strncpy_user with CONFIG_ARCH_HAS_STRNCPY_FROM_USER
xtensa: drop bcopy implementation
xtensa: drop EXPORT_SYMBOL for common_exception_return
xtensa: boot-redboot: clean up Makefile
xtensa: clean up default platform functions
xtensa: drop platform_halt and platform_power_off
xtensa: drop platform_restart
xtensa: drop platform_heartbeat
xtensa: xt2000: drop empty platform_init
This reverts commit 6ebe94baa2.
The patch "nios2: Convert __pte_free_tlb() to use ptdescs" was supposed
to go together with a patchset that Vishal Moola had planned taking it
through the mm tree. By just having this patch, all NIOS2 builds are
broken.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Johan Hovold