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As a prerequisite for adding EEE CAP2 register support, complement
PHY_EEE_CAP1_FEATURES with PHY_EEE_CAP2_FEATURES.
For now only 2500baseT and 5000baseT modes are supported.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This adds helpers for accessing the EEE CAP2 registers.
For now only 2500baseT and 5000baseT modes are supported.
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Stanislaw Gruszka says:
====================
thermal/netlink/intel_hfi: Enable HFI feature only when required
The patchset introduces a new genetlink family bind/unbind callbacks
and thermal/netlink notifications, which allow drivers to send netlink
multicast events based on the presence of actual user-space consumers.
This functionality optimizes resource usage by allowing disabling
of features when not needed.
v1: https://lore.kernel.org/linux-pm/20240131120535.933424-1-stanislaw.gruszka@linux.intel.com//
v2: https://lore.kernel.org/linux-pm/20240206133605.1518373-1-stanislaw.gruszka@linux.intel.com/
v3: https://lore.kernel.org/linux-pm/20240209120625.1775017-1-stanislaw.gruszka@linux.intel.com/
====================
Link: https://lore.kernel.org/r/20240212161615.161935-1-stanislaw.gruszka@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Add genetlink family bind()/unbind() callbacks when adding/removing
multicast group to/from netlink client socket via setsockopt() or
bind() syscall.
They can be used to track if consumers of netlink multicast messages
emerge or disappear. Thus, a client implementing callbacks, can now
send events only when there are active consumers, preventing unnecessary
work when none exist.
Suggested-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Link: https://lore.kernel.org/r/20240212161615.161935-2-stanislaw.gruszka@linux.intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
net/core/dev.c
9f30831390ed ("net: add rcu safety to rtnl_prop_list_size()")
723de3ebef03 ("net: free altname using an RCU callback")
net/unix/garbage.c
11498715f266 ("af_unix: Remove io_uring code for GC.")
25236c91b5ab ("af_unix: Fix task hung while purging oob_skb in GC.")
drivers/net/ethernet/renesas/ravb_main.c
ed4adc07207d ("net: ravb: Count packets instead of descriptors in GbEth RX path"
)
c2da9408579d ("ravb: Add Rx checksum offload support for GbEth")
net/mptcp/protocol.c
bdd70eb68913 ("mptcp: drop the push_pending field")
28e5c1380506 ("mptcp: annotate lockless accesses around read-mostly fields")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from can, wireless and netfilter.
Current release - regressions:
- af_unix: fix task hung while purging oob_skb in GC
- pds_core: do not try to run health-thread in VF path
Current release - new code bugs:
- sched: act_mirred: don't zero blockid when net device is being
deleted
Previous releases - regressions:
- netfilter:
- nat: restore default DNAT behavior
- nf_tables: fix bidirectional offload, broken when unidirectional
offload support was added
- openvswitch: limit the number of recursions from action sets
- eth: i40e: do not allow untrusted VF to remove administratively set
MAC address
Previous releases - always broken:
- tls: fix races and bugs in use of async crypto
- mptcp: prevent data races on some of the main socket fields, fix
races in fastopen handling
- dpll: fix possible deadlock during netlink dump operation
- dsa: lan966x: fix crash when adding interface under a lag when some
of the ports are disabled
- can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
Misc:
- a handful of fixes and reliability improvements for selftests
- fix sysfs documentation missing net/ in paths
- finish the work of squashing the missing MODULE_DESCRIPTION()
warnings in networking"
* tag 'net-6.8-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (92 commits)
net: fill in MODULE_DESCRIPTION()s for missing arcnet
net: fill in MODULE_DESCRIPTION()s for mdio_devres
net: fill in MODULE_DESCRIPTION()s for ppp
net: fill in MODULE_DESCRIPTION()s for fddik/skfp
net: fill in MODULE_DESCRIPTION()s for plip
net: fill in MODULE_DESCRIPTION()s for ieee802154/fakelb
net: fill in MODULE_DESCRIPTION()s for xen-netback
net: ravb: Count packets instead of descriptors in GbEth RX path
pppoe: Fix memory leak in pppoe_sendmsg()
net: sctp: fix skb leak in sctp_inq_free()
net: bcmasp: Handle RX buffer allocation failure
net-timestamp: make sk_tskey more predictable in error path
selftests: tls: increase the wait in poll_partial_rec_async
ice: Add check for lport extraction to LAG init
netfilter: nf_tables: fix bidirectional offload regression
netfilter: nat: restore default DNAT behavior
netfilter: nft_set_pipapo: fix missing : in kdoc
igc: Remove temporary workaround
igb: Fix string truncation warnings in igb_set_fw_version
can: netlink: Fix TDCO calculation using the old data bittiming
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Fixes and simple cleanups:
- use a proper flexible array instead of a one-element array in order
to avoid array-bounds sanitizer errors
- add NULL pointer checks after allocating memory
- use memdup_array_user() instead of open-coding it
- fix a rare race condition in Xen event channel allocation code
- make struct bus_type instances const
- make kerneldoc inline comments match reality"
* tag 'for-linus-6.8a-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/events: close evtchn after mapping cleanup
xen/gntalloc: Replace UAPI 1-element array
xen: balloon: make balloon_subsys const
xen: pcpu: make xen_pcpu_subsys const
xen/privcmd: Use memdup_array_user() in alloc_ioreq()
x86/xen: Add some null pointer checking to smp.c
xen/xenbus: document will_handle argument for xenbus_watch_path()
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In commit 4356e9f841f7 ("work around gcc bugs with 'asm goto' with
outputs") I did the gcc workaround unconditionally, because the cause of
the bad code generation wasn't entirely clear.
In the meantime, Jakub Jelinek debugged the issue, and has come up with
a fix in gcc [2], which also got backported to the still maintained
branches of gcc-11, gcc-12 and gcc-13.
Note that while the fix technically wasn't in the original gcc-14
branch, Jakub says:
"while it is true that no GCC 14 snapshots until today (or whenever the
fix will be committed) have the fix, for GCC trunk it is up to the
distros to use the latest snapshot if they use it at all and would
allow better testing of the kernel code without the workaround, so
that if there are other issues they won't be discovered years later.
Most userland code doesn't actually use asm goto with outputs..."
so we will consider gcc-14 to be fixed - if somebody is using gcc
snapshots of the gcc-14 before the fix, they should upgrade.
Note that while the bug goes back to gcc-11, in practice other gcc
changes seem to have effectively hidden it since gcc-12.1 as per a
bisect by Jakub. So even a gcc-14 snapshot without the fix likely
doesn't show actual problems.
Also, make the default 'asm_goto_output()' macro mark the asm as
volatile by hand, because of an unrelated gcc issue [1] where it doesn't
match the documented behavior ("asm goto is always volatile").
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103979 [1]
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113921 [2]
Link: https://lore.kernel.org/all/20240208220604.140859-1-seanjc@google.com/
Requested-by: Jakub Jelinek <jakub@redhat.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Andrew Pinski <quic_apinski@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In RFC 8981, REGEN_ADVANCE cannot be less than 2 seconds, and the RFC
does not permit the creation of temporary addresses with lifetimes
shorter than that:
> When processing a Router Advertisement with a
> Prefix Information option carrying a prefix for the purposes of
> address autoconfiguration (i.e., the A bit is set), the host MUST
> perform the following steps:
> 5. A temporary address is created only if this calculated preferred
> lifetime is greater than REGEN_ADVANCE time units.
However, some users want to change their IPv6 address as frequently as
possible regardless of the RFC's arbitrary minimum lifetime. For the
benefit of those users, add a regen_min_advance sysctl parameter that
can be set to below or above 2 seconds.
Link: https://datatracker.ietf.org/doc/html/rfc8981
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Since commit d492cc2573a0 ("driver core: device.h: make struct
bus_type a const *"), the driver core can properly handle constant
struct bus_type, move the mdio_bus_type variable to be a constant
structure as well, placing it into read-only memory which can not be
modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://lore.kernel.org/r/20240213-bus_cleanup-mdio-v1-1-f9e799da7fda@marliere.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux
Pull MIPS fixes from Thomas Bogendoerfer:
- Fix for broken ipv6 checksums
- Fix handling of exceptions in delay slots
* tag 'mips-fixes_6.8_2' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
mm/memory: Use exception ip to search exception tables
MIPS: Clear Cause.BD in instruction_pointer_set
ptrace: Introduce exception_ip arch hook
MIPS: Add 'memory' clobber to csum_ipv6_magic() inline assembler
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dev_base_lock is not needed anymore, all remaining users also hold RTNL.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dev_base_lock is going away, add netdev_set_operstate() helper
so that hsr does not have to know core internals.
Remove dev_base_lock acquisition from rfc2863_policy()
v3: use an "unsigned int" for dev->operstate,
so that try_cmpxchg() can work on all arches.
( https://lore.kernel.org/oe-kbuild-all/202402081918.OLyGaea3-lkp@intel.com/ )
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prepares things so that dev->reg_state reads can be lockless,
by adding WRITE_ONCE() on write side.
READ_ONCE()/WRITE_ONCE() do not support bitfields.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add an ioctl for getting and setting epoll_params. User programs can use
this ioctl to get and set the busy poll usec time, packet budget, and
prefer busy poll params for a specific epoll context.
Parameters are limited:
- busy_poll_usecs is limited to <= s32_max
- busy_poll_budget is limited to <= NAPI_POLL_WEIGHT by unprivileged
users (!capable(CAP_NET_ADMIN))
- prefer_busy_poll must be 0 or 1
- __pad must be 0
Signed-off-by: Joe Damato <jdamato@fastly.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can-next
Marc Kleine-Budde says:
====================
linux-can-next-for-6.9-20240213
this is a pull request of 23 patches for net-next/master.
The first patch is by Nicolas Maier and targets the CAN Broadcast
Manager (bcm), it adds message flags to distinguish between own local
and remote traffic.
Oliver Hartkopp contributes a patch for the CAN ISOTP protocol that
adds dynamic flow control parameters.
Stefan Mätje's patch series add support for the esd PCIe/402 CAN
interface family.
Markus Schneider-Pargmann contributes 14 patches for the m_can to
optimize for the SPI attached tcan4x5x controller.
A patch by Vincent Mailhol replaces Wolfgang Grandegger by Vincent
Mailhol as the CAN drivers Co-Maintainer.
Jimmy Assarsson's patch add support for the Kvaser M.2 PCIe 4xCAN
adapter.
A patch by Daniil Dulov removed a redundant NULL check in the softing
driver.
Oliver Hartkopp contributes a patch to add CANXL virtual CAN network
identifier support.
A patch by myself removes Naga Sureshkumar Relli as the maintainer of
the xilinx_can driver, as their email bounces.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Rely on skb_pp_cow_data utility routine and remove duplicated code.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Reviewed-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/029cc14cce41cb242ee7efdcf32acc81f1ce4e9f.1707729884.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Similar to native xdp, do not always linearize the skb in
netif_receive_generic_xdp routine but create a non-linear xdp_buff to be
processed by the eBPF program. This allow to add multi-buffer support
for xdp running in generic mode.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Reviewed-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/1044d6412b1c3e95b40d34993fd5f37cd2f319fd.1707729884.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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netif_receive_generic_xdp
Rely on skb pointer reference instead of the skb pointer in do_xdp_generic
and netif_receive_generic_xdp routine signatures.
This is a preliminary patch to add multi-buff support for xdp running in
generic mode where we will need to reallocate the skb to avoid
linearization and we will need to make it visible to do_xdp_generic()
caller.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Reviewed-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/c09415b1f48c8620ef4d76deed35050a7bddf7c2.1707729884.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Introduce generic percpu page_pools allocator.
Moreover add page_pool_create_percpu() and cpuid filed in page_pool struct
in order to recycle the page in the page_pool "hot" cache if
napi_pp_put_page() is running on the same cpu.
This is a preliminary patch to add xdp multi-buff support for xdp running
in generic mode.
Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Reviewed-by: Toke Hoiland-Jorgensen <toke@redhat.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/80bc4285228b6f4220cd03de1999d86e46e3fcbd.1707729884.git.lorenzo@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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CAN XL data frames contain an 8-bit virtual CAN network identifier (VCID).
A VCID value of zero represents an 'untagged' CAN XL frame.
To receive and send these optional VCIDs via CAN_RAW sockets a new socket
option CAN_RAW_XL_VCID_OPTS is introduced to define/access VCID content:
- tx: set the outgoing VCID value by the kernel (one fixed 8-bit value)
- tx: pass through VCID values from the user space (e.g. for traffic replay)
- rx: apply VCID receive filter (value/mask) to be passed to the user space
With the 'tx pass through' option CAN_RAW_XL_VCID_TX_PASS all valid VCID
values can be sent, e.g. to replay full qualified CAN XL traffic.
The VCID value provided for the CAN_RAW_XL_VCID_TX_SET option will
override the VCID value in the struct canxl_frame.prio defined for
CAN_RAW_XL_VCID_TX_PASS when both flags are set.
With a rx_vcid_mask of zero all possible VCID values (0x00 - 0xFF) are
passed to the user space when the CAN_RAW_XL_VCID_RX_FILTER flag is set.
Without this flag only untagged CAN XL frames (VCID = 0x00) are delivered
to the user space (default).
The 8-bit VCID is stored inside the CAN XL prio element (only in CAN XL
frames!) to not interfere with other CAN content or the CAN filters
provided by the CAN_RAW sockets and kernel infrastruture.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20240212213550.18516-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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Without changing the structure size (since it is UAPI), add a proper
flexible array member, and reference it in the kernel so that it will
not be trip the array-bounds sanitizer[1].
Link: https://github.com/KSPP/linux/issues/113 [1]
Cc: Juergen Gross <jgross@suse.com>
Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>
Cc: Gustavo A. R. Silva <gustavoars@kernel.org>
Cc: xen-devel@lists.xenproject.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20240206170320.work.437-kees@kernel.org
Signed-off-by: Juergen Gross <jgross@suse.com>
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Set scope automatically in ip_route_output_ports() (using the socket
SOCK_LOCALROUTE flag). This way, callers don't have to overload the
tos with the RTO_ONLINK flag, like RT_CONN_FLAGS() does.
For callers that don't pass a struct sock, this doesn't change anything
as the scope is still set to RT_SCOPE_UNIVERSE when sk is NULL.
Callers that passed a struct sock and used RT_CONN_FLAGS(sk) or
RT_CONN_FLAGS_TOS(sk, tos) for the tos are modified to use
ip_sock_tos(sk) and RT_TOS(tos) respectively, as overloading tos with
the RTO_ONLINK flag now becomes unnecessary.
In drivers/net/amt.c, all ip_route_output_ports() calls use a 0 tos
parameter, ignoring the SOCK_LOCALROUTE flag of the socket. But the sk
parameter is a kernel socket, which doesn't have any configuration path
for setting SOCK_LOCALROUTE anyway. Therefore, ip_route_output_ports()
will continue to initialise scope with RT_SCOPE_UNIVERSE and amt.c
doesn't need to be modified.
Also, remove RT_CONN_FLAGS() and RT_CONN_FLAGS_TOS() from route.h as
these macros are now unused.
The objective is to eventually remove RTO_ONLINK entirely to allow
converting ->flowi4_tos to dscp_t. This will ensure proper isolation
between the DSCP and ECN bits, thus minimising the risk of introducing
bugs where TOS values interfere with ECN.
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/dacfd2ab40685e20959ab7b53c427595ba229e7d.1707496938.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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On architectures with delay slot, architecture level instruction
pointer (or program counter) in pt_regs may differ from where
exception was triggered.
Introduce exception_ip hook to invoke architecture code and determine
actual instruction pointer to the exception.
Link: https://lore.kernel.org/lkml/00d1b813-c55f-4365-8d81-d70258e10b16@app.fastmail.com/
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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The ISO15765-2 standard supports to take the PDUs communication parameters
blocksize (BS) and Separation Time minimum (STmin) either from the first
received flow control (FC) "static" or from every received FC "dynamic".
Add a new CAN_ISOTP_DYN_FC_PARMS flag to support dynamic FC parameters.
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Link: https://lore.kernel.org/all/20231208165729.3011-1-socketcan@hartkopp.net
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- Fix performance regression introduced by moving the security
permission hook out of do_clone_file_range() and into its caller
vfs_clone_file_range().
This causes the security hook to be called in situation were it
wasn't called before as the fast permission checks were left in
do_clone_file_range().
Fix this by merging the two implementations back together and
restoring the old ordering: fast permission checks first, expensive
ones later.
- Tweak mount_setattr() permission checking so that mount properties on
the real rootfs can be changed.
When we added mount_setattr() we added additional checks compared to
legacy mount(2). If the mount had a parent then verify that the
caller and the mount namespace the mount is attached to match and if
not make sure that it's an anonymous mount.
But the real rootfs falls into neither category. It is neither an
anoymous mount because it is obviously attached to the initial mount
namespace but it also obviously doesn't have a parent mount. So that
means legacy mount(2) allows changing mount properties on the real
rootfs but mount_setattr(2) blocks this. This causes regressions (See
the commit for details).
Fix this by relaxing the check. If the mount has a parent or if it
isn't a detached mount, verify that the mount namespaces of the
caller and the mount are the same. Technically, we could probably
write this even simpler and check that the mount namespaces match if
it isn't a detached mount. But the slightly longer check makes it
clearer what conditions one needs to think about.
* tag 'vfs-6.8-rc5.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
fs: relax mount_setattr() permission checks
remap_range: merge do_clone_file_range() into vfs_clone_file_range()
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FIB6 GC walks trees of fib6_tables to remove expired routes. Walking a tree
can be expensive if the number of routes in a table is big, even if most of
them are permanent. Checking routes in a separated list of routes having
expiration will avoid this potential issue.
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pass the duration of a lifetime (in seconds) to the function
rt6_add_dflt_router() so that it can properly set the expiration time.
The function ndisc_router_discovery() is the only one that calls
rt6_add_dflt_router(), and it will later set the expiration time for the
route created by rt6_add_dflt_router(). However, there is a gap of time
between calling rt6_add_dflt_router() and setting the expiration time in
ndisc_router_discovery(). During this period, there is a possibility that a
new route may be removed from the routing table. By setting the correct
expiration time in rt6_add_dflt_router(), we can prevent this from
happening. The reason for setting RTF_EXPIRES in rt6_add_dflt_router() is
to start the Garbage Collection (GC) timer, as it only activates when a
route with RTF_EXPIRES is added to a table.
Suggested-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dev->lstats is notably used from loopback ndo_start_xmit()
and other virtual drivers.
Per cpu stats updates are dirtying per-cpu data,
but the pointer itself is read-only.
Fixes: 43a71cd66b9c ("net-device: reorganize net_device fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Simon Horman <horms@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tp->tcp_usec_ts is a read mostly field, used in rx and tx fast paths.
Fixes: d5fed5addb2b ("tcp: reorganize tcp_sock fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Wei Wang <weiwan@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tp->scaling_ratio is a read mostly field, used in rx and tx fast paths.
Fixes: d5fed5addb2b ("tcp: reorganize tcp_sock fast path variables")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Coco Li <lixiaoyan@google.com>
Cc: Wei Wang <weiwan@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Borislav Petkov:
- Make sure a warning is issued when a hrtimer gets queued after the
timers have been migrated on the CPU down path and thus said timer
will get ignored
* tag 'timers_urgent_for_v6.8_rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
hrtimer: Report offline hrtimer enqueue
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The submitting thread (one which called recvmsg/sendmsg)
may exit as soon as the async crypto handler calls complete()
so any code past that point risks touching already freed data.
Try to avoid the locking and extra flags altogether.
Have the main thread hold an extra reference, this way
we can depend solely on the atomic ref counter for
synchronization.
Don't futz with reiniting the completion, either, we are now
tightly controlling when completion fires.
Reported-by: valis <sec@valis.email>
Fixes: 0cada33241d9 ("net/tls: fix race condition causing kernel panic")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull block fixes from Jens Axboe:
- NVMe pull request via Keith:
- Update a potentially stale firmware attribute (Maurizio)
- Fixes for the recent verbose error logging (Keith, Chaitanya)
- Protection information payload size fix for passthrough (Francis)
- Fix for a queue freezing issue in virtblk (Yi)
- blk-iocost underflow fix (Tejun)
- blk-wbt task detection fix (Jan)
* tag 'block-6.8-2024-02-10' of git://git.kernel.dk/linux:
virtio-blk: Ensure no requests in virtqueues before deleting vqs.
blk-iocost: Fix an UBSAN shift-out-of-bounds warning
nvme: use ns->head->pi_size instead of t10_pi_tuple structure size
nvme-core: fix comment to reflect right functions
nvme: move passthrough logging attribute to head
blk-wbt: Fix detection of dirty-throttled tasks
nvme-host: fix the updating of the firmware version
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Some PHY driver might require additional regs call after
genphy_c37_read_status() is called.
Expand genphy_c37_read_status to provide a bool wheather the link has
changed or not to permit PHY driver to skip additional regs call if
nothing has changed.
Every user of genphy_c37_read_status() is updated with the new
additional bool.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add devm/of_phy_package_join helper to join PHYs in a PHY package. These
are variant of the manual phy_package_join with the difference that
these will use DT nodes to derive the base_addr instead of manually
passing an hardcoded value.
An additional value is added in phy_package_shared, "np" to reference
the PHY package node pointer in specific PHY driver probe_once and
config_init_once functions to make use of additional specific properties
defined in the PHY package node in DT.
The np value is filled only with of_phy_package_join if a valid PHY
package node is found. A valid PHY package node must have the node name
set to "ethernet-phy-package".
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull ceph fixes from Ilya Dryomov:
"Some fscrypt-related fixups (sparse reads are used only for encrypted
files) and two cap handling fixes from Xiubo and Rishabh"
* tag 'ceph-for-6.8-rc4' of https://github.com/ceph/ceph-client:
ceph: always check dir caps asynchronously
ceph: prevent use-after-free in encode_cap_msg()
ceph: always set initial i_blkbits to CEPH_FSCRYPT_BLOCK_SHIFT
libceph: just wait for more data to be available on the socket
libceph: rename read_sparse_msg_*() to read_partial_sparse_msg_*()
libceph: fail sparse-read if the data length doesn't match
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We've had issues with gcc and 'asm goto' before, and we created a
'asm_volatile_goto()' macro for that in the past: see commits
3f0116c3238a ("compiler/gcc4: Add quirk for 'asm goto' miscompilation
bug") and a9f180345f53 ("compiler/gcc4: Make quirk for
asm_volatile_goto() unconditional").
Then, much later, we ended up removing the workaround in commit
43c249ea0b1e ("compiler-gcc.h: remove ancient workaround for gcc PR
58670") because we no longer supported building the kernel with the
affected gcc versions, but we left the macro uses around.
Now, Sean Christopherson reports a new version of a very similar
problem, which is fixed by re-applying that ancient workaround. But the
problem in question is limited to only the 'asm goto with outputs'
cases, so instead of re-introducing the old workaround as-is, let's
rename and limit the workaround to just that much less common case.
It looks like there are at least two separate issues that all hit in
this area:
(a) some versions of gcc don't mark the asm goto as 'volatile' when it
has outputs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98619
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110420
which is easy to work around by just adding the 'volatile' by hand.
(b) Internal compiler errors:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110422
which are worked around by adding the extra empty 'asm' as a
barrier, as in the original workaround.
but the problem Sean sees may be a third thing since it involves bad
code generation (not an ICE) even with the manually added 'volatile'.
but the same old workaround works for this case, even if this feels a
bit like voodoo programming and may only be hiding the issue.
Reported-and-tested-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/all/20240208220604.140859-1-seanjc@google.com/
Cc: Nick Desaulniers <ndesaulniers@google.com>
Cc: Uros Bizjak <ubizjak@gmail.com>
Cc: Jakub Jelinek <jakub@redhat.com>
Cc: Andrew Pinski <quic_apinski@quicinc.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
"The only notable change here is the patch that changes the way we deal
with spurious errors from the EFI memory attribute protocol. This will
be backported to v6.6, and is intended to ensure that we will not
paint ourselves into a corner when we tighten this further in order to
comply with MS requirements on signed EFI code.
Note that this protocol does not currently exist in x86 production
systems in the field, only in Microsoft's fork of OVMF, but it will be
mandatory for Windows logo certification for x86 PCs in the future.
- Tighten ELF relocation checks on the RISC-V EFI stub
- Give up if the new EFI memory attributes protocol fails spuriously
on x86
- Take care not to place the kernel in the lowest 16 MB of DRAM on
x86
- Omit special purpose EFI memory from memblock
- Some fixes for the CXL CPER reporting code
- Make the PE/COFF layout of mixed-mode capable images comply with a
strict interpretation of the spec"
* tag 'efi-fixes-for-v6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
x86/efistub: Use 1:1 file:memory mapping for PE/COFF .compat section
cxl/trace: Remove unnecessary memcpy's
cxl/cper: Fix errant CPER prints for CXL events
efi: Don't add memblocks for soft-reserved memory
efi: runtime: Fix potential overflow of soft-reserved region size
efi/libstub: Add one kernel-doc comment
x86/efistub: Avoid placing the kernel below LOAD_PHYSICAL_ADDR
x86/efistub: Give up if memory attribute protocol returns an error
riscv/efistub: Tighten ELF relocation check
riscv/efistub: Ensure GP-relative addressing is not used
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Merge netdev bits of io_uring busy polling support.
Jens Axboe says:
====================
io_uring: add napi busy polling support
I finally got around to testing this patchset in its current form, and
results look fine to me. It Works. Using the basic ping/pong test that's
part of the liburing addition, without enabling NAPI I get:
Stock settings, no NAPI, 100k packets:
rtt(us) min/avg/max/mdev = 31.730/37.006/87.960/0.497
and with -t10 -b enabled:
rtt(us) min/avg/max/mdev = 23.250/29.795/63.511/1.203
In short, this patchset enables per io_uring NAPI enablement, rather
than need to enable that globally. This allows targeted NAPI usage with
io_uring.
Here's Stefan's v15 posting, which predates this one:
https://lore.kernel.org/io-uring/20230608163839.2891748-1-shr@devkernel.io/
====================
Link: https://lore.kernel.org/r/20240206163422.646218-1-axboe@kernel.dk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This adds the napi_busy_loop_rcu() function. This function assumes that
the calling function is already holding the rcu read lock and
napi_busy_loop() does not need to take the rcu read lock. Add a
NAPI_F_NO_SCHED flag, which tells __napi_busy_loop() to abort if we
need to reschedule rather than drop the RCU read lock and reschedule.
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Link: https://lore.kernel.org/r/20230608163839.2891748-3-shr@devkernel.io
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Pull drm fixes from Dave Airlie:
"Regular weekly fixes, xe, amdgpu and msm are most of them, with some
misc in i915, ivpu and nouveau, scattered but nothing too intense at
this point.
i915:
- gvt: docs fix, uninit var, MAINTAINERS
ivpu:
- add aborted job status
- disable d3 hot delay
- mmu fixes
nouveau:
- fix gsp rpc size request
- fix dma buffer leaks
- use common code for gsp mem ctor
xe:
- Fix a loop in an error path
- Fix a missing dma-fence reference
- Fix a retry path on userptr REMAP
- Workaround for a false gcc warning
- Fix missing map of the usm batch buffer in the migrate vm.
- Fix a memory leak.
- Fix a bad assumption of used page size
- Fix hitting a BUG() due to zero pages to map.
- Remove some leftover async bind queue relics
amdgpu:
- Misc NULL/bounds check fixes
- ODM pipe policy fix
- Aborted suspend fixes
- JPEG 4.0.5 fix
- DCN 3.5 fixes
- PSP fix
- DP MST fix
- Phantom pipe fix
- VRAM vendor fix
- Clang fix
- SR-IOV fix
msm:
- DPU:
- fix for kernel doc warnings and smatch warnings in dpu_encoder
- fix for smatch warning in dpu_encoder
- fix the bus bandwidth value for SDM670
- DP:
- fixes to handle unknown bpc case correctly for DP
- fix for MISC0 programming
- GPU:
- dmabuf vmap fix
- a610 UBWC corruption fix (incorrect hbb)
- revert a commit that was making GPU recovery unreliable"
* tag 'drm-fixes-2024-02-09' of git://anongit.freedesktop.org/drm/drm: (43 commits)
drm/xe: Remove TEST_VM_ASYNC_OPS_ERROR
drm/xe/vm: don't ignore error when in_kthread
drm/xe: Assume large page size if VMA not yet bound
drm/xe/display: Fix memleak in display initialization
drm/xe: Map both mem.kernel_bb_pool and usm.bb_pool
drm/xe: circumvent bogus stringop-overflow warning
drm/xe: Pick correct userptr VMA to repin on REMAP op failure
drm/xe: Take a reference in xe_exec_queue_last_fence_get()
drm/xe: Fix loop in vm_bind_ioctl_ops_unwind
drm/amdgpu: Fix HDP flush for VFs on nbio v7.9
drm/amd/display: Implement bounds check for stream encoder creation in DCN301
drm/amd/display: Increase frame-larger-than for all display_mode_vba files
drm/amd/display: Clear phantom stream count and plane count
drm/amdgpu: Avoid fetching VRAM vendor info
drm/amd/display: Disable ODM by default for DCN35
drm/amd/display: Update phantom pipe enable / disable sequence
drm/amd/display: Fix MST Null Ptr for RV
drm/amdgpu: Fix shared buff copy to user
drm/amd/display: Increase eval/entry delay for DCN35
drm/amdgpu: remove asymmetrical irq disabling in jpeg 4.0.5 suspend
...
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Add a new WWAN port that connects to the device fastboot protocol
interface.
Signed-off-by: Jinjian Song <jinjian.song@fibocom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A null pointer dereference fix for v3d, a TTM pool initialization fix,
several fixes for nouveau around register size, DMA buffer leaks and API
consistency, a multiple fixes for ivpu around MMU setup, initialization
and firmware interactions.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/4wsi2i6kgkqdu7nzp4g7hxasbswnrmc5cakgf5zzvnix53u7lr@4rmp7hwblow3
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Cross-merge networking fixes after downstream PR.
No conflicts.
Adjacent changes:
drivers/net/ethernet/stmicro/stmmac/common.h
38cc3c6dcc09 ("net: stmmac: protect updates of 64-bit statistics counters")
fd5a6a71313e ("net: stmmac: est: Per Tx-queue error count for HLBF")
c5c3e1bfc9e0 ("net: stmmac: Offload queueMaxSDU from tc-taprio")
drivers/net/wireless/microchip/wilc1000/netdev.c
c9013880284d ("wifi: fill in MODULE_DESCRIPTION()s for wilc1000")
328efda22af8 ("wifi: wilc1000: do not realloc workqueue everytime an interface is added")
net/unix/garbage.c
11498715f266 ("af_unix: Remove io_uring code for GC.")
1279f9d9dec2 ("af_unix: Call kfree_skb() for dead unix_(sk)->oob_skb in GC.")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Paolo Abeni:
"Including fixes from WiFi and netfilter.
Current release - regressions:
- nic: intel: fix old compiler regressions
- netfilter: ipset: missing gc cancellations fixed
Current release - new code bugs:
- netfilter: ctnetlink: fix filtering for zone 0
Previous releases - regressions:
- core: fix from address in memcpy_to_iter_csum()
- netfilter: nfnetlink_queue: un-break NF_REPEAT
- af_unix: fix memory leak for dead unix_(sk)->oob_skb in GC.
- devlink: avoid potential loop in devlink_rel_nested_in_notify_work()
- iwlwifi:
- mvm: fix a battery life regression
- fix double-free bug
- mac80211: fix waiting for beacons logic
- nic: nfp: flower: prevent re-adding mac index for bonded port
Previous releases - always broken:
- rxrpc: fix generation of serial numbers to skip zero
- tipc: check the bearer type before calling tipc_udp_nl_bearer_add()
- tunnels: fix out of bounds access when building IPv6 PMTU error
- nic: hv_netvsc: register VF in netvsc_probe if NET_DEVICE_REGISTER
missed
- nic: atlantic: fix DMA mapping for PTP hwts ring
Misc:
- selftests: more fixes to deal with very slow hosts"
* tag 'net-6.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (80 commits)
netfilter: nft_set_pipapo: remove scratch_aligned pointer
netfilter: nft_set_pipapo: add helper to release pcpu scratch area
netfilter: nft_set_pipapo: store index in scratch maps
netfilter: nft_set_rbtree: skip end interval element from gc
netfilter: nfnetlink_queue: un-break NF_REPEAT
netfilter: nf_tables: use timestamp to check for set element timeout
netfilter: nft_ct: reject direction for ct id
netfilter: ctnetlink: fix filtering for zone 0
s390/qeth: Fix potential loss of L3-IP@ in case of network issues
netfilter: ipset: Missing gc cancellations fixed
octeontx2-af: Initialize maps.
net: ethernet: ti: cpsw: enable mac_managed_pm to fix mdio
net: ethernet: ti: cpsw_new: enable mac_managed_pm to fix mdio
netfilter: nft_set_pipapo: remove static in nft_pipapo_get()
netfilter: nft_compat: restrict match/target protocol to u16
netfilter: nft_compat: reject unused compat flag
netfilter: nft_compat: narrow down revision to unsigned 8-bits
net: intel: fix old compiler regressions
MAINTAINERS: Maintainer change for rds
selftests: cmsg_ipv6: repeat the exact packet
...
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git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Narrow down target/match revision to u8 in nft_compat.
2) Bail out with unused flags in nft_compat.
3) Restrict layer 4 protocol to u16 in nft_compat.
4) Remove static in pipapo get command that slipped through when
reducing set memory footprint.
5) Follow up incremental fix for the ipset performance regression,
this includes the missing gc cancellation, from Jozsef Kadlecsik.
6) Allow to filter by zone 0 in ctnetlink, do not interpret zone 0
as no filtering, from Felix Huettner.
7) Reject direction for NFT_CT_ID.
8) Use timestamp to check for set element expiration while transaction
is handled to prevent garbage collection from removing set elements
that were just added by this transaction. Packet path and netlink
dump/get path still use current time to check for expiration.
9) Restore NF_REPEAT in nfnetlink_queue, from Florian Westphal.
10) map_index needs to be percpu and per-set, not just percpu.
At this time its possible for a pipapo set to fill the all-zero part
with ones and take the 'might have bits set' as 'start-from-zero' area.
From Florian Westphal. This includes three patches:
- Change scratchpad area to a structure that provides space for a
per-set-and-cpu toggle and uses it of the percpu one.
- Add a new free helper to prepare for the next patch.
- Remove the scratch_aligned pointer and makes AVX2 implementation
use the exact same memory addresses for read/store of the matching
state.
netfilter pull request 24-02-08
* tag 'nf-24-02-08' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nft_set_pipapo: remove scratch_aligned pointer
netfilter: nft_set_pipapo: add helper to release pcpu scratch area
netfilter: nft_set_pipapo: store index in scratch maps
netfilter: nft_set_rbtree: skip end interval element from gc
netfilter: nfnetlink_queue: un-break NF_REPEAT
netfilter: nf_tables: use timestamp to check for set element timeout
netfilter: nft_ct: reject direction for ct id
netfilter: ctnetlink: fix filtering for zone 0
netfilter: ipset: Missing gc cancellations fixed
netfilter: nft_set_pipapo: remove static in nft_pipapo_get()
netfilter: nft_compat: restrict match/target protocol to u16
netfilter: nft_compat: reject unused compat flag
netfilter: nft_compat: narrow down revision to unsigned 8-bits
====================
Link: https://lore.kernel.org/r/20240208112834.1433-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Add a timestamp field at the beginning of the transaction, store it
in the nftables per-netns area.
Update set backend .insert, .deactivate and sync gc path to use the
timestamp, this avoids that an element expires while control plane
transaction is still unfinished.
.lookup and .update, which are used from packet path, still use the
current time to check if the element has expired. And .get path and dump
also since this runs lockless under rcu read size lock. Then, there is
async gc which also needs to check the current time since it runs
asynchronously from a workqueue.
Fixes: c3e1b005ed1c ("netfilter: nf_tables: add set element timeout support")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
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exit_batch_rtnl() is called while RTNL is held,
and devices to be unregistered can be queued in the dev_kill_list.
This saves one rtnl_lock()/rtnl_unlock() pair
and one unregister_netdevice_many() call.
This patch takes care of ipip, ip_vti, and ip_gre tunnels.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20240206144313.2050392-15-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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unregister_nexthop_notifier() assumes the caller does not hold rtnl.
We need in the following patch to use it from a context
already holding rtnl.
Add __unregister_nexthop_notifier().
unregister_nexthop_notifier() becomes a wrapper.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Antoine Tenart <atenart@kernel.org>
Link: https://lore.kernel.org/r/20240206144313.2050392-9-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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