sk->sk_bind_phc is read locklessly. Add corresponding annotations.
Fixes: d463126e23 ("net: sock: extend SO_TIMESTAMPING for PHC binding")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Yangbo Lu <yangbo.lu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
sk->sk_tsflags can be read locklessly, add corresponding annotations.
Fixes: b9f40e21ef ("net-timestamp: move timestamp flags out of sk_flags")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
msk->rmem_fwd_alloc can be read locklessly.
Add mptcp_rmem_fwd_alloc_add(), similar to sk_forward_alloc_add(),
and appropriate READ_ONCE()/WRITE_ONCE() annotations.
Fixes: 6511882cdd ("mptcp: allocate fwd memory separately on the rx and tx path")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Every time sk->sk_forward_alloc is read locklessly,
add a READ_ONCE().
Add sk_forward_alloc_add() helper to centralize updates,
to reduce number of WRITE_ONCE().
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
inet_sk_diag_fill() has been changed to use sk_forward_alloc_get(),
but sk_get_meminfo() was forgotten.
Fixes: 292e6077b0 ("net: introduce sk_forward_alloc_get()")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2023-08-31
We've added 15 non-merge commits during the last 3 day(s) which contain
a total of 17 files changed, 468 insertions(+), 97 deletions(-).
The main changes are:
1) BPF selftest fixes: one flake and one related to clang18 testing,
from Yonghong Song.
2) Fix a d_path BPF selftest failure after fast-forward from Linus'
tree, from Jiri Olsa.
3) Fix a preempt_rt splat in sockmap when using raw_spin_lock_t,
from John Fastabend.
4) Fix a xsk_diag_fill use-after-free race during socket cleanup,
from Magnus Karlsson.
5) Fix xsk_build_skb to address a buggy dereference of an ERR_PTR(),
from Tirthendu Sarkar.
6) Fix a bpftool build warning when compiled with -Wtype-limits,
from Yafang Shao.
7) Several misc fixes and cleanups in standardization docs,
from David Vernet.
8) Fix BPF selftest install to consider no_alu32/cpuv4/bpf-gcc flavors,
from Björn Töpel.
9) Annotate a data race in bpf_long_memcpy for KCSAN, from Daniel Borkmann.
10) Extend documentation with a description for CO-RE relocations,
from Eduard Zingerman.
11) Fix several invalid escape sequence warnings in bpf_doc.py script,
from Vishal Chourasia.
12) Fix the instruction set doc wrt offset of BPF-to-BPF call,
from Will Hawkins.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf:
selftests/bpf: Include build flavors for install target
bpf: Annotate bpf_long_memcpy with data_race
selftests/bpf: Fix d_path test
bpf, docs: Fix invalid escape sequence warnings in bpf_doc.py
xsk: Fix xsk_diag use-after-free error during socket cleanup
bpf, docs: s/eBPF/BPF in standards documents
bpf, docs: Add abi.rst document to standardization subdirectory
bpf, docs: Move linux-notes.rst to root bpf docs tree
bpf, sockmap: Fix preempt_rt splat when using raw_spin_lock_t
docs/bpf: Add description for CO-RE relocations
bpf, docs: Correct source of offset for program-local call
selftests/bpf: Fix flaky cgroup_iter_sleepable subtest
xsk: Fix xsk_build_skb() error: 'skb' dereferencing possible ERR_PTR()
bpftool: Fix build warnings with -Wtype-limits
bpf: Prevent inlining of bpf_fentry_test7()
====================
Link: https://lore.kernel.org/r/20230831210019.14417-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When using the "install" or targets depending on install, e.g. "gen_tar",
the BPF machine flavors weren't included.
A command like:
| make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- O=/workspace/kbuild \
| HOSTCC=gcc FORMAT= SKIP_TARGETS="arm64 ia64 powerpc sparc64 x86 sgx" \
| -C tools/testing/selftests gen_tar
would not include bpf/no_alu32, bpf/cpuv4, or bpf/bpf-gcc.
Include the BPF machine flavors for "install" make target.
Signed-off-by: Björn Töpel <bjorn@rivosinc.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230831162954.111485-1-bjorn@kernel.org
syzbot reported a data race splat between two processes trying to
update the same BPF map value via syscall on different CPUs:
BUG: KCSAN: data-race in bpf_percpu_array_update / bpf_percpu_array_update
write to 0xffffe8fffe7425d8 of 8 bytes by task 8257 on cpu 1:
bpf_long_memcpy include/linux/bpf.h:428 [inline]
bpf_obj_memcpy include/linux/bpf.h:441 [inline]
copy_map_value_long include/linux/bpf.h:464 [inline]
bpf_percpu_array_update+0x3bb/0x500 kernel/bpf/arraymap.c:380
bpf_map_update_value+0x190/0x370 kernel/bpf/syscall.c:175
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1749
bpf_map_do_batch+0x2df/0x3d0 kernel/bpf/syscall.c:4648
__sys_bpf+0x28a/0x780
__do_sys_bpf kernel/bpf/syscall.c:5241 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5239 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
write to 0xffffe8fffe7425d8 of 8 bytes by task 8268 on cpu 0:
bpf_long_memcpy include/linux/bpf.h:428 [inline]
bpf_obj_memcpy include/linux/bpf.h:441 [inline]
copy_map_value_long include/linux/bpf.h:464 [inline]
bpf_percpu_array_update+0x3bb/0x500 kernel/bpf/arraymap.c:380
bpf_map_update_value+0x190/0x370 kernel/bpf/syscall.c:175
generic_map_update_batch+0x3ae/0x4f0 kernel/bpf/syscall.c:1749
bpf_map_do_batch+0x2df/0x3d0 kernel/bpf/syscall.c:4648
__sys_bpf+0x28a/0x780
__do_sys_bpf kernel/bpf/syscall.c:5241 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5239 [inline]
__x64_sys_bpf+0x43/0x50 kernel/bpf/syscall.c:5239
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
value changed: 0x0000000000000000 -> 0xfffffff000002788
The bpf_long_memcpy is used with 8-byte aligned pointers, power-of-8 size
and forced to use long read/writes to try to atomically copy long counters.
It is best-effort only and no barriers are here since it _will_ race with
concurrent updates from BPF programs. The bpf_long_memcpy() is called from
bpf(2) syscall. Marco suggested that the best way to make this known to
KCSAN would be to use data_race() annotation.
Reported-by: syzbot+97522333291430dd277f@syzkaller.appspotmail.com
Suggested-by: Marco Elver <elver@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Marco Elver <elver@google.com>
Link: https://lore.kernel.org/bpf/000000000000d87a7f06040c970c@google.com
Link: https://lore.kernel.org/bpf/57628f7a15e20d502247c3b55fceb1cb2b31f266.1693342186.git.daniel@iogearbox.net
Recent commit [1] broke d_path test, because now filp_close is not called
directly from sys_close, but eventually later when the file is finally
released.
As suggested by Hou Tao we don't need to re-hook the bpf program, but just
instead we can use sys_close_range to trigger filp_close synchronously.
[1] 021a160abf ("fs: use __fput_sync in close(2)")
Suggested-by: Hou Tao <houtao@huaweicloud.com>
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230831141103.359810-1-jolsa@kernel.org
The script bpf_doc.py generates multiple SyntaxWarnings related to invalid
escape sequences when executed with Python 3.12. These warnings do not appear
in Python 3.10 and 3.11 and do not affect the kernel build, which completes
successfully.
This patch resolves these SyntaxWarnings by converting the relevant string
literals to raw strings or by escaping backslashes. This ensures that
backslashes are interpreted as literal characters, eliminating the warnings.
Reported-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Vishal Chourasia <vishalc@linux.ibm.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20230829074931.2511204-1-vishalc@linux.ibm.com
Fix a use-after-free error that is possible if the xsk_diag interface
is used after the socket has been unbound from the device. This can
happen either due to the socket being closed or the device
disappearing. In the early days of AF_XDP, the way we tested that a
socket was not bound to a device was to simply check if the netdevice
pointer in the xsk socket structure was NULL. Later, a better system
was introduced by having an explicit state variable in the xsk socket
struct. For example, the state of a socket that is on the way to being
closed and has been unbound from the device is XSK_UNBOUND.
The commit in the Fixes tag below deleted the old way of signalling
that a socket is unbound, setting dev to NULL. This in the belief that
all code using the old way had been exterminated. That was
unfortunately not true as the xsk diagnostics code was still using the
old way and thus does not work as intended when a socket is going
down. Fix this by introducing a test against the state variable. If
the socket is in the state XSK_UNBOUND, simply abort the diagnostic's
netlink operation.
Fixes: 18b1ab7aa7 ("xsk: Fix race at socket teardown")
Reported-by: syzbot+822d1359297e2694f873@syzkaller.appspotmail.com
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: syzbot+822d1359297e2694f873@syzkaller.appspotmail.com
Tested-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Link: https://lore.kernel.org/bpf/20230831100119.17408-1-magnus.karlsson@gmail.com
New skbs allocated via nf_send_reset() have skb->dev == NULL.
fib*_rules_early_flow_dissect helpers already have a 'struct net'
argument but its not passed down to the flow dissector core, which
will then WARN as it can't derive a net namespace to use:
WARNING: CPU: 0 PID: 0 at net/core/flow_dissector.c:1016 __skb_flow_dissect+0xa91/0x1cd0
[..]
ip_route_me_harder+0x143/0x330
nf_send_reset+0x17c/0x2d0 [nf_reject_ipv4]
nft_reject_inet_eval+0xa9/0xf2 [nft_reject_inet]
nft_do_chain+0x198/0x5d0 [nf_tables]
nft_do_chain_inet+0xa4/0x110 [nf_tables]
nf_hook_slow+0x41/0xc0
ip_local_deliver+0xce/0x110
..
Cc: Stanislav Fomichev <sdf@google.com>
Cc: David Ahern <dsahern@kernel.org>
Cc: Ido Schimmel <idosch@nvidia.com>
Fixes: 812fa71f0d ("netfilter: Dissect flow after packet mangling")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217826
Signed-off-by: Florian Westphal <fw@strlen.de>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230830110043.30497-1-fw@strlen.de
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'nf-23-08-31' of 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) Fix mangling of TCP options with non-linear skbuff, from Xiao Liang.
2) OOB read in xt_sctp due to missing sanitization of array length field.
From Wander Lairson Costa.
3) OOB read in xt_u32 due to missing sanitization of array length field.
Also from Wander Lairson Costa.
All of them above, always broken for several releases.
4) Missing audit log for set element reset command, from Phil Sutter.
5) Missing audit log for rule reset command, also from Phil.
These audit log support are missing in 6.5.
* tag 'nf-23-08-31' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
netfilter: nf_tables: Audit log rule reset
netfilter: nf_tables: Audit log setelem reset
netfilter: xt_u32: validate user space input
netfilter: xt_sctp: validate the flag_info count
netfilter: nft_exthdr: Fix non-linear header modification
====================
Link: https://lore.kernel.org/r/20230830235935.465690-1-pablo@netfilter.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
It is backwards compatible
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230829084717.961-1-oneukum@suse.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Alexander Stein reports that commit a014c35556 ("net: stmmac: clarify
difference between "interface" and "phy_interface"") caused breakage,
because plat->mac_interface will never be negative. Fix this by using
the "rc" temporary variable in stmmac_probe_config_dt().
Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/E1qayn0-006Q8J-GE@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Resetting rules' stateful data happens outside of the transaction logic,
so 'get' and 'dump' handlers have to emit audit log entries themselves.
Fixes: 8daa8fde3f ("netfilter: nf_tables: Introduce NFT_MSG_GETRULE_RESET")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Since set element reset is not integrated into nf_tables' transaction
logic, an explicit log call is needed, similar to NFT_MSG_GETOBJ_RESET
handling.
For the sake of simplicity, catchall element reset will always generate
a dedicated log entry. This relieves nf_tables_dump_set() from having to
adjust the logged element count depending on whether a catchall element
was found or not.
Fixes: 079cd63321 ("netfilter: nf_tables: Introduce NFT_MSG_GETSETELEM_RESET")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
The xt_u32 module doesn't validate the fields in the xt_u32 structure.
An attacker may take advantage of this to trigger an OOB read by setting
the size fields with a value beyond the arrays boundaries.
Add a checkentry function to validate the structure.
This was originally reported by the ZDI project (ZDI-CAN-18408).
Fixes: 1b50b8a371 ("[NETFILTER]: Add u32 match")
Cc: stable@vger.kernel.org
Signed-off-by: Wander Lairson Costa <wander@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
sctp_mt_check doesn't validate the flag_count field. An attacker can
take advantage of that to trigger a OOB read and leak memory
information.
Add the field validation in the checkentry function.
Fixes: 2e4e6a17af ("[NETFILTER] x_tables: Abstraction layer for {ip,ip6,arp}_tables")
Cc: stable@vger.kernel.org
Reported-by: Lucas Leong <wmliang@infosec.exchange>
Signed-off-by: Wander Lairson Costa <wander@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Fix skb_ensure_writable() size. Don't use nft_tcp_header_pointer() to
make it explicit that pointers point to the packet (not local buffer).
Fixes: 99d1712bc4 ("netfilter: exthdr: tcp option set support")
Fixes: 7890cbea66 ("netfilter: exthdr: add support for tcp option removal")
Cc: stable@vger.kernel.org
Signed-off-by: Xiao Liang <shaw.leon@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
There isn't really anything other than just "BPF" at this point,
so referring to it as "eBPF" in our standards document just causes
unnecessary confusion. Let's just be consistent and use "BPF".
Suggested-by: Will Hawkins <hawkinsw@obs.cr>
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230828155948.123405-4-void@manifault.com
As specified in the IETF BPF charter, the BPF working group has plans to
add one or more informational documents that recommend conventions and
guidelines for producing portable BPF program binaries. The
instruction-set.rst document currently contains a "Registers and calling
convention" subsection which dictates a calling convention that belongs
in an ABI document, rather than an instruction set document. Let's move
it to a new abi.rst document so we can clean it up. The abi.rst document
will of course be significantly changed and expanded upon over time. For
now, it's really just a placeholder which will contain ABI-specific
language that doesn't belong in other documents.
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230828155948.123405-3-void@manifault.com
In commit 4d496be9ca ("bpf,docs: Create new standardization
subdirectory"), I added a standardization/ directory to the BPF
documentation, which will contain the docs that will be standardized
as part of the effort with the IETF.
I included linux-notes.rst in that directory, but I shouldn't have. It
doesn't contain anything that will be standardized. Let's move it back
to Documentation/bpf.
Signed-off-by: David Vernet <void@manifault.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230828155948.123405-2-void@manifault.com
commit edf391ff17 ("snmp: add missing counters for RFC 4293") had
already added OutOctets for RFC 4293. In commit 2d8dbb04c6 ("snmp: fix
OutOctets counter to include forwarded datagrams"), OutOctets was
counted again, but not removed from ip_output().
According to RFC 4293 "3.2.3. IP Statistics Tables",
ipipIfStatsOutTransmits is not equal to ipIfStatsOutForwDatagrams. So
"IPSTATS_MIB_OUTOCTETS must be incremented when incrementing" is not
accurate. And IPSTATS_MIB_OUTOCTETS should be counted after fragment.
This patch reverts commit 2d8dbb04c6 ("snmp: fix OutOctets counter to
include forwarded datagrams") and move IPSTATS_MIB_OUTOCTETS to
ip_finish_output2 for ipv4.
Reviewed-by: Filip Pudak <filip.pudak@windriver.com>
Signed-off-by: Heng Guo <heng.guo@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Sockmap and sockhash maps are a collection of psocks that are
objects representing a socket plus a set of metadata needed
to manage the BPF programs associated with the socket. These
maps use the stab->lock to protect from concurrent operations
on the maps, e.g. trying to insert to objects into the array
at the same time in the same slot. Additionally, a sockhash map
has a bucket lock to protect iteration and insert/delete into
the hash entry.
Each psock has a psock->link which is a linked list of all the
maps that a psock is attached to. This allows a psock (socket)
to be included in multiple sockmap and sockhash maps. This
linked list is protected the psock->link_lock.
They _must_ be nested correctly to avoid deadlock:
lock(stab->lock)
: do BPF map operations and psock insert/delete
lock(psock->link_lock)
: add map to psock linked list of maps
unlock(psock->link_lock)
unlock(stab->lock)
For non PREEMPT_RT kernels both raw_spin_lock_t and spin_lock_t
are guaranteed to not sleep. But, with PREEMPT_RT kernels the
spin_lock_t variants may sleep. In the current code we have
many patterns like this:
rcu_critical_section:
raw_spin_lock(stab->lock)
spin_lock(psock->link_lock) <- may sleep ouch
spin_unlock(psock->link_lock)
raw_spin_unlock(stab->lock)
rcu_critical_section
Nesting spin_lock() inside a raw_spin_lock() violates locking
rules for PREEMPT_RT kernels. And additionally we do alloc(GFP_ATOMICS)
inside the stab->lock, but those might sleep on PREEMPT_RT kernels.
The result is splats like this:
./test_progs -t sockmap_basic
[ 33.344330] bpf_testmod: loading out-of-tree module taints kernel.
[ 33.441933]
[ 33.442089] =============================
[ 33.442421] [ BUG: Invalid wait context ]
[ 33.442763] 6.5.0-rc5-01731-gec0ded2e0282 #4958 Tainted: G O
[ 33.443320] -----------------------------
[ 33.443624] test_progs/2073 is trying to lock:
[ 33.443960] ffff888102a1c290 (&psock->link_lock){....}-{3:3}, at: sock_map_update_common+0x2c2/0x3d0
[ 33.444636] other info that might help us debug this:
[ 33.444991] context-{5:5}
[ 33.445183] 3 locks held by test_progs/2073:
[ 33.445498] #0: ffff88811a208d30 (sk_lock-AF_INET){+.+.}-{0:0}, at: sock_map_update_elem_sys+0xff/0x330
[ 33.446159] #1: ffffffff842539e0 (rcu_read_lock){....}-{1:3}, at: sock_map_update_elem_sys+0xf5/0x330
[ 33.446809] #2: ffff88810d687240 (&stab->lock){+...}-{2:2}, at: sock_map_update_common+0x177/0x3d0
[ 33.447445] stack backtrace:
[ 33.447655] CPU: 10 PID
To fix observe we can't readily remove the allocations (for that
we would need to use/create something similar to bpf_map_alloc). So
convert raw_spin_lock_t to spin_lock_t. We note that sock_map_update
that would trigger the allocate and potential sleep is only allowed
through sys_bpf ops and via sock_ops which precludes hw interrupts
and low level atomic sections in RT preempt kernel. On non RT
preempt kernel there are no changes here and spin locks sections
and alloc(GFP_ATOMIC) are still not sleepable.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230830053517.166611-1-john.fastabend@gmail.com
Add a section on CO-RE relocations to llvm_relo.rst. Describe relevant .BTF.ext
structure, `enum bpf_core_relo_kind` and `struct bpf_core_relo` in some detail.
Description is based on doc-strings from:
- include/uapi/linux/bpf.h:struct bpf_core_relo
- tools/lib/bpf/relo_core.c:__bpf_core_types_match()
Signed-off-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yonghong.song@linux.dev>
Link: https://lore.kernel.org/bpf/20230826222912.2560865-2-eddyz87@gmail.com
The offset to use when calculating the target of a program-local call is
in the instruction's imm field, not its offset field.
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: David Vernet <void@manifault.com>
Link: https://lore.kernel.org/bpf/20230826053258.1860167-1-hawkinsw@obs.cr
Occasionally, with './test_progs -j' on my vm, I will hit the
following failure:
test_cgrp_local_storage:PASS:join_cgroup /cgrp_local_storage 0 nsec
test_cgroup_iter_sleepable:PASS:skel_open 0 nsec
test_cgroup_iter_sleepable:PASS:skel_load 0 nsec
test_cgroup_iter_sleepable:PASS:attach_iter 0 nsec
test_cgroup_iter_sleepable:PASS:iter_create 0 nsec
test_cgroup_iter_sleepable:FAIL:cgroup_id unexpected cgroup_id: actual 1 != expected 2812
#48/5 cgrp_local_storage/cgroup_iter_sleepable:FAIL
#48 cgrp_local_storage:FAIL
Finally, I decided to do some investigation since the test is introduced
by myself. It turns out the reason is due to cgroup_fd with value 0.
In cgroup_iter, a cgroup_fd of value 0 means the root cgroup.
/* from cgroup_iter.c */
if (fd)
cgrp = cgroup_v1v2_get_from_fd(fd);
else if (id)
cgrp = cgroup_get_from_id(id);
else /* walk the entire hierarchy by default. */
cgrp = cgroup_get_from_path("/");
That is why we got cgroup_id 1 instead of expected 2812.
Why we got a cgroup_fd 0? Nobody should really touch 'stdin' (fd 0) in
test_progs. I traced 'close' syscall with stack trace and found the root
cause, which is a bug in bpf_obj_pinning.c. Basically, the code closed
fd 0 although it should not. Fixing the bug in bpf_obj_pinning.c also
resolved the above cgroup_iter_sleepable subtest failure.
Fixes: 3b22f98e5a ("selftests/bpf: Add path_fd-based BPF_OBJ_PIN and BPF_OBJ_GET tests")
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230827150551.1743497-1-yonghong.song@linux.dev
Currently, xsk_build_skb() is a function that builds skb in two possible
ways and then is ended with common error handling.
We can distinguish four possible error paths and handling in xsk_build_skb():
1. sock_alloc_send_skb fails: Retry (skb is NULL).
2. skb_store_bits fails : Free skb and retry.
3. MAX_SKB_FRAGS exceeded: Free skb, cleanup and drop packet.
4. alloc_page fails for frag: Retry page allocation w/o freeing skb
1] and 3] can happen in xsk_build_skb_zerocopy(), which is one of the
two code paths responsible for building skb. Common error path in
xsk_build_skb() assumes that in case errno != -EAGAIN, skb is a valid
pointer, which is wrong as kernel test robot reports that in
xsk_build_skb_zerocopy() other errno values are returned for skb being
NULL.
To fix this, set -EOVERFLOW as error when MAX_SKB_FRAGS are exceeded
and packet needs to be dropped in both xsk_build_skb() and
xsk_build_skb_zerocopy() and use this to distinguish against all other
error cases. Also, add explicit kfree_skb() for 3] so that handling
of 1], 2], and 3] becomes identical where allocation needs to be retried.
Fixes: cf24f5a5fe ("xsk: add support for AF_XDP multi-buffer on Tx path")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Tirthendu Sarkar <tirthendu.sarkar@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Magnus Karlsson <magnus.karlsson@intel.com>
Closes: https://lore.kernel.org/r/202307210434.OjgqFcbB-lkp@intel.com
Link: https://lore.kernel.org/bpf/20230823144713.2231808-1-tirthendu.sarkar@intel.com
Quentin reported build warnings when building bpftool :
link.c: In function ‘perf_config_hw_cache_str’:
link.c:86:18: warning: comparison of unsigned expression in ‘>= 0’ is always true [-Wtype-limits]
86 | if ((id) >= 0 && (id) < ARRAY_SIZE(array)) \
| ^~
link.c:320:20: note: in expansion of macro ‘perf_event_name’
320 | hw_cache = perf_event_name(evsel__hw_cache, config & 0xff);
| ^~~~~~~~~~~~~~~
[... more of the same for the other calls to perf_event_name ...]
He also pointed out the reason and the solution:
We're always passing unsigned, so it should be safe to drop the check on
(id) >= 0.
Fixes: 62b57e3ddd ("bpftool: Add perf event names")
Reported-by: Quentin Monnet <quentin@isovalent.com>
Suggested-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Closes: https://lore.kernel.org/bpf/a35d9a2d-54a0-49ec-9ed1-8fcf1369d3cc@isovalent.com
Link: https://lore.kernel.org/bpf/20230830030325.3786-1-laoar.shao@gmail.com
With latest clang18, I hit test_progs failures for the following test:
#13/2 bpf_cookie/multi_kprobe_link_api:FAIL
#13/3 bpf_cookie/multi_kprobe_attach_api:FAIL
#13 bpf_cookie:FAIL
#75 fentry_fexit:FAIL
#76/1 fentry_test/fentry:FAIL
#76 fentry_test:FAIL
#80/1 fexit_test/fexit:FAIL
#80 fexit_test:FAIL
#110/1 kprobe_multi_test/skel_api:FAIL
#110/2 kprobe_multi_test/link_api_addrs:FAIL
#110/3 kprobe_multi_test/link_api_syms:FAIL
#110/4 kprobe_multi_test/attach_api_pattern:FAIL
#110/5 kprobe_multi_test/attach_api_addrs:FAIL
#110/6 kprobe_multi_test/attach_api_syms:FAIL
#110 kprobe_multi_test:FAIL
For example, for #13/2, the error messages are:
[...]
kprobe_multi_test_run:FAIL:kprobe_test7_result unexpected kprobe_test7_result: actual 0 != expected 1
[...]
kprobe_multi_test_run:FAIL:kretprobe_test7_result unexpected kretprobe_test7_result: actual 0 != expected 1
clang17 does not have this issue.
Further investigation shows that kernel func bpf_fentry_test7(), used in
the above tests, is inlined by the compiler although it is marked as
noinline.
int noinline bpf_fentry_test7(struct bpf_fentry_test_t *arg)
{
return (long)arg;
}
It is known that for simple functions like the above (e.g. just returning
a constant or an input argument), the clang compiler may still do inlining
for a noinline function. Adding 'asm volatile ("")' in the beginning of the
bpf_fentry_test7() can prevent inlining.
Signed-off-by: Yonghong Song <yonghong.song@linux.dev>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Tested-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/20230826200843.2210074-1-yonghong.song@linux.dev
Core
----
- Increase size limits for to-be-sent skb frag allocations. This
allows tun, tap devices and packet sockets to better cope with large
writes operations.
- Store netdevs in an xarray, to simplify iterating over netdevs.
- Refactor nexthop selection for multipath routes.
- Improve sched class lifetime handling.
- Add backup nexthop ID support for bridge.
- Implement drop reasons support in openvswitch.
- Several data races annotations and fixes.
- Constify the sk parameter of routing functions.
- Prepend kernel version to netconsole message.
Protocols
---------
- Implement support for TCP probing the peer being under memory
pressure.
- Remove hard coded limitation on IPv6 specific info placement
inside the socket struct.
- Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated
per socket scaling factor.
- Scaling-up the IPv6 expired route GC via a separated list of
expiring routes.
- In-kernel support for the TLS alert protocol.
- Better support for UDP reuseport with connected sockets.
- Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
header size.
- Get rid of additional ancillary per MPTCP connection struct socket.
- Implement support for BPF-based MPTCP packet schedulers.
- Format MPTCP subtests selftests results in TAP.
- Several new SMC 2.1 features including unique experimental options,
max connections per lgr negotiation, max links per lgr negotiation.
BPF
---
- Multi-buffer support in AF_XDP.
- Add multi uprobe BPF links for attaching multiple uprobes
and usdt probes, which is significantly faster and saves extra fds.
- Implement an fd-based tc BPF attach API (TCX) and BPF link support on
top of it.
- Add SO_REUSEPORT support for TC bpf_sk_assign.
- Support new instructions from cpu v4 to simplify the generated code and
feature completeness, for x86, arm64, riscv64.
- Support defragmenting IPv(4|6) packets in BPF.
- Teach verifier actual bounds of bpf_get_smp_processor_id()
and fix perf+libbpf issue related to custom section handling.
- Introduce bpf map element count and enable it for all program types.
- Add a BPF hook in sys_socket() to change the protocol ID
from IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy.
- Introduce bpf_me_mcache_free_rcu() and fix OOM under stress.
- Add uprobe support for the bpf_get_func_ip helper.
- Check skb ownership against full socket.
- Support for up to 12 arguments in BPF trampoline.
- Extend link_info for kprobe_multi and perf_event links.
Netfilter
---------
- Speed-up process exit by aborting ruleset validation if a
fatal signal is pending.
- Allow NLA_POLICY_MASK to be used with BE16/BE32 types.
Driver API
----------
- Page pool optimizations, to improve data locality and cache usage.
- Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the need
for raw ioctl() handling in drivers.
- Simplify genetlink dump operations (doit/dumpit) providing them
the common information already populated in struct genl_info.
- Extend and use the yaml devlink specs to [re]generate the split ops.
- Introduce devlink selective dumps, to allow SF filtering SF based on
handle and other attributes.
- Add yaml netlink spec for netlink-raw families, allow route, link and
address related queries via the ynl tool.
- Remove phylink legacy mode support.
- Support offload LED blinking to phy.
- Add devlink port function attributes for IPsec.
New hardware / drivers
----------------------
- Ethernet:
- Broadcom ASP 2.0 (72165) ethernet controller
- MediaTek MT7988 SoC
- Texas Instruments AM654 SoC
- Texas Instruments IEP driver
- Atheros qca8081 phy
- Marvell 88Q2110 phy
- NXP TJA1120 phy
- WiFi:
- MediaTek mt7981 support
- Can:
- Kvaser SmartFusion2 PCI Express devices
- Allwinner T113 controllers
- Texas Instruments tcan4552/4553 chips
- Bluetooth:
- Intel Gale Peak
- Qualcomm WCN3988 and WCN7850
- NXP AW693 and IW624
- Mediatek MT2925
Drivers
-------
- Ethernet NICs:
- nVidia/Mellanox:
- mlx5:
- support UDP encapsulation in packet offload mode
- IPsec packet offload support in eswitch mode
- improve aRFS observability by adding new set of counters
- extends MACsec offload support to cover RoCE traffic
- dynamic completion EQs
- mlx4:
- convert to use auxiliary bus instead of custom interface logic
- Intel
- ice:
- implement switchdev bridge offload, even for LAG interfaces
- implement SRIOV support for LAG interfaces
- igc:
- add support for multiple in-flight TX timestamps
- Broadcom:
- bnxt:
- use the unified RX page pool buffers for XDP and non-XDP
- use the NAPI skb allocation cache
- OcteonTX2:
- support Round Robin scheduling HTB offload
- TC flower offload support for SPI field
- Freescale:
- add XDP_TX feature support
- AMD:
- ionic: add support for PCI FLR event
- sfc:
- basic conntrack offload
- introduce eth, ipv4 and ipv6 pedit offloads
- ST Microelectronics:
- stmmac: maximze PTP timestamping resolution
- Virtual NICs:
- Microsoft vNIC:
- batch ringing RX queue doorbell on receiving packets
- add page pool for RX buffers
- Virtio vNIC:
- add per queue interrupt coalescing support
- Google vNIC:
- add queue-page-list mode support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add port range matching tc-flower offload
- permit enslavement to netdevices with uppers
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- convert to phylink_pcs
- Renesas:
- r8A779fx: add speed change support
- rzn1: enables vlan support
- Ethernet PHYs:
- convert mv88e6xxx to phylink_pcs
- WiFi:
- Qualcomm Wi-Fi 7 (ath12k):
- extremely High Throughput (EHT) PHY support
- RealTek (rtl8xxxu):
- enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
RTL8192EU and RTL8723BU
- RealTek (rtw89):
- Introduce Time Averaged SAR (TAS) support
- Connector:
- support for event filtering
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Paolo Abeni:
"Core:
- Increase size limits for to-be-sent skb frag allocations. This
allows tun, tap devices and packet sockets to better cope with
large writes operations
- Store netdevs in an xarray, to simplify iterating over netdevs
- Refactor nexthop selection for multipath routes
- Improve sched class lifetime handling
- Add backup nexthop ID support for bridge
- Implement drop reasons support in openvswitch
- Several data races annotations and fixes
- Constify the sk parameter of routing functions
- Prepend kernel version to netconsole message
Protocols:
- Implement support for TCP probing the peer being under memory
pressure
- Remove hard coded limitation on IPv6 specific info placement inside
the socket struct
- Get rid of sysctl_tcp_adv_win_scale and use an auto-estimated per
socket scaling factor
- Scaling-up the IPv6 expired route GC via a separated list of
expiring routes
- In-kernel support for the TLS alert protocol
- Better support for UDP reuseport with connected sockets
- Add NEXT-C-SID support for SRv6 End.X behavior, reducing the SR
header size
- Get rid of additional ancillary per MPTCP connection struct socket
- Implement support for BPF-based MPTCP packet schedulers
- Format MPTCP subtests selftests results in TAP
- Several new SMC 2.1 features including unique experimental options,
max connections per lgr negotiation, max links per lgr negotiation
BPF:
- Multi-buffer support in AF_XDP
- Add multi uprobe BPF links for attaching multiple uprobes and usdt
probes, which is significantly faster and saves extra fds
- Implement an fd-based tc BPF attach API (TCX) and BPF link support
on top of it
- Add SO_REUSEPORT support for TC bpf_sk_assign
- Support new instructions from cpu v4 to simplify the generated code
and feature completeness, for x86, arm64, riscv64
- Support defragmenting IPv(4|6) packets in BPF
- Teach verifier actual bounds of bpf_get_smp_processor_id() and fix
perf+libbpf issue related to custom section handling
- Introduce bpf map element count and enable it for all program types
- Add a BPF hook in sys_socket() to change the protocol ID from
IPPROTO_TCP to IPPROTO_MPTCP to cover migration for legacy
- Introduce bpf_me_mcache_free_rcu() and fix OOM under stress
- Add uprobe support for the bpf_get_func_ip helper
- Check skb ownership against full socket
- Support for up to 12 arguments in BPF trampoline
- Extend link_info for kprobe_multi and perf_event links
Netfilter:
- Speed-up process exit by aborting ruleset validation if a fatal
signal is pending
- Allow NLA_POLICY_MASK to be used with BE16/BE32 types
Driver API:
- Page pool optimizations, to improve data locality and cache usage
- Introduce ndo_hwtstamp_get() and ndo_hwtstamp_set() to avoid the
need for raw ioctl() handling in drivers
- Simplify genetlink dump operations (doit/dumpit) providing them the
common information already populated in struct genl_info
- Extend and use the yaml devlink specs to [re]generate the split ops
- Introduce devlink selective dumps, to allow SF filtering SF based
on handle and other attributes
- Add yaml netlink spec for netlink-raw families, allow route, link
and address related queries via the ynl tool
- Remove phylink legacy mode support
- Support offload LED blinking to phy
- Add devlink port function attributes for IPsec
New hardware / drivers:
- Ethernet:
- Broadcom ASP 2.0 (72165) ethernet controller
- MediaTek MT7988 SoC
- Texas Instruments AM654 SoC
- Texas Instruments IEP driver
- Atheros qca8081 phy
- Marvell 88Q2110 phy
- NXP TJA1120 phy
- WiFi:
- MediaTek mt7981 support
- Can:
- Kvaser SmartFusion2 PCI Express devices
- Allwinner T113 controllers
- Texas Instruments tcan4552/4553 chips
- Bluetooth:
- Intel Gale Peak
- Qualcomm WCN3988 and WCN7850
- NXP AW693 and IW624
- Mediatek MT2925
Drivers:
- Ethernet NICs:
- nVidia/Mellanox:
- mlx5:
- support UDP encapsulation in packet offload mode
- IPsec packet offload support in eswitch mode
- improve aRFS observability by adding new set of counters
- extends MACsec offload support to cover RoCE traffic
- dynamic completion EQs
- mlx4:
- convert to use auxiliary bus instead of custom interface
logic
- Intel
- ice:
- implement switchdev bridge offload, even for LAG
interfaces
- implement SRIOV support for LAG interfaces
- igc:
- add support for multiple in-flight TX timestamps
- Broadcom:
- bnxt:
- use the unified RX page pool buffers for XDP and non-XDP
- use the NAPI skb allocation cache
- OcteonTX2:
- support Round Robin scheduling HTB offload
- TC flower offload support for SPI field
- Freescale:
- add XDP_TX feature support
- AMD:
- ionic: add support for PCI FLR event
- sfc:
- basic conntrack offload
- introduce eth, ipv4 and ipv6 pedit offloads
- ST Microelectronics:
- stmmac: maximze PTP timestamping resolution
- Virtual NICs:
- Microsoft vNIC:
- batch ringing RX queue doorbell on receiving packets
- add page pool for RX buffers
- Virtio vNIC:
- add per queue interrupt coalescing support
- Google vNIC:
- add queue-page-list mode support
- Ethernet high-speed switches:
- nVidia/Mellanox (mlxsw):
- add port range matching tc-flower offload
- permit enslavement to netdevices with uppers
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- convert to phylink_pcs
- Renesas:
- r8A779fx: add speed change support
- rzn1: enables vlan support
- Ethernet PHYs:
- convert mv88e6xxx to phylink_pcs
- WiFi:
- Qualcomm Wi-Fi 7 (ath12k):
- extremely High Throughput (EHT) PHY support
- RealTek (rtl8xxxu):
- enable AP mode for: RTL8192FU, RTL8710BU (RTL8188GU),
RTL8192EU and RTL8723BU
- RealTek (rtw89):
- Introduce Time Averaged SAR (TAS) support
- Connector:
- support for event filtering"
* tag 'net-next-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1806 commits)
net: ethernet: mtk_wed: minor change in wed_{tx,rx}info_show
net: ethernet: mtk_wed: add some more info in wed_txinfo_show handler
net: stmmac: clarify difference between "interface" and "phy_interface"
r8152: add vendor/device ID pair for D-Link DUB-E250
devlink: move devlink_notify_register/unregister() to dev.c
devlink: move small_ops definition into netlink.c
devlink: move tracepoint definitions into core.c
devlink: push linecard related code into separate file
devlink: push rate related code into separate file
devlink: push trap related code into separate file
devlink: use tracepoint_enabled() helper
devlink: push region related code into separate file
devlink: push param related code into separate file
devlink: push resource related code into separate file
devlink: push dpipe related code into separate file
devlink: move and rename devlink_dpipe_send_and_alloc_skb() helper
devlink: push shared buffer related code into separate file
devlink: push port related code into separate file
devlink: push object register/unregister notifications into separate helpers
inet: fix IP_TRANSPARENT error handling
...
API:
- Move crypto engine callback from tfm ctx into algorithm object.
- Fix atomic sleep bug in crypto_destroy_instance.
- Move lib/mpi into lib/crypto.
Algorithms:
- Add chacha20 and poly1305 implementation for powerpc p10.
Drivers:
- Add AES skcipher and aead support to starfive.
- Add Dynamic Boost Control support to ccp.
- Add support for STM32P13 platform to stm32.
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Merge tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Move crypto engine callback from tfm ctx into algorithm object
- Fix atomic sleep bug in crypto_destroy_instance
- Move lib/mpi into lib/crypto
Algorithms:
- Add chacha20 and poly1305 implementation for powerpc p10
Drivers:
- Add AES skcipher and aead support to starfive
- Add Dynamic Boost Control support to ccp
- Add support for STM32P13 platform to stm32"
* tag 'v6.6-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (149 commits)
Revert "dt-bindings: crypto: qcom,prng: Add SM8450"
crypto: chelsio - Remove unused declarations
X.509: if signature is unsupported skip validation
crypto: qat - fix crypto capability detection for 4xxx
crypto: drivers - Explicitly include correct DT includes
crypto: engine - Remove crypto_engine_ctx
crypto: zynqmp - Use new crypto_engine_op interface
crypto: virtio - Use new crypto_engine_op interface
crypto: stm32 - Use new crypto_engine_op interface
crypto: jh7110 - Use new crypto_engine_op interface
crypto: rk3288 - Use new crypto_engine_op interface
crypto: omap - Use new crypto_engine_op interface
crypto: keembay - Use new crypto_engine_op interface
crypto: sl3516 - Use new crypto_engine_op interface
crypto: caam - Use new crypto_engine_op interface
crypto: aspeed - Remove non-standard sha512 algorithms
crypto: aspeed - Use new crypto_engine_op interface
crypto: amlogic - Use new crypto_engine_op interface
crypto: sun8i-ss - Use new crypto_engine_op interface
crypto: sun8i-ce - Use new crypto_engine_op interface
...
Core GPIOLIB updates:
- wake-up poll() in user-space on device unbind
- improve fwnode usage
- interrupt domain handling improvements
- correctly handle the ngpios property in gpio-mmio
Driver cleanups:
- remove unneeded calls to platform_set_drvdata() all around the place
- remove unneeded of_match_ptr() expansions whenever a driver depends on
CONFIG_OF
- remove redundant calls to dev_err_probe() from gpio-omap and gpio-davinci
Driver improvements:
- use autopointers and guards from cleanup.h in gpio-sim
- shrink code in gpio-sim using some common helpers
- convert the idio family of drivers to using gpio-regmap
- convert gpio-ws16c48 to using gpio-regmap
- use devres to simplify code in gpio-pisosr and gpio-mxc
- update gpio-sifive: support IRQ wake, improve interrupt handling, allow
building as module
- make gpio-ge and gpio-bcm-kona OF-independent (plus some minor tweaks)
- add support for new models in gpio-pca953x and gpio-ds4520
- add runtime PM support to gpio-mxc
- fix a build warning in gpio-mxs
- add support for adding pin ranges to gpio-mlxbf3
- add counter/timer support to gpio-104-dio-48e
- switch to dynamic GPIO base allocation in gpio-vf610
- minor oneliners here and there
Device-tree bindings updates:
- enable the gpio-line-names property in snps,dw-apb and STMPE GPIO
- document new models in fsl-imx-gpio, ds4520 and pca95xx
- convert the bindings for brcm,kona-gpio to YAML
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Merge tag 'gpio-updates-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have a lot of code refactoring using common helpers and ended up
removing more lines then we're adding this release cycle.
Nothing really stands out, just small updates all over the place.
Core GPIOLIB updates:
- wake-up poll() in user-space on device unbind
- improve fwnode usage
- interrupt domain handling improvements
- correctly handle the ngpios property in gpio-mmio
Driver cleanups:
- remove unneeded calls to platform_set_drvdata() all around the
place
- remove unneeded of_match_ptr() expansions whenever a driver depends
on CONFIG_OF
- remove redundant calls to dev_err_probe() from gpio-omap and
gpio-davinci
Driver improvements:
- use autopointers and guards from cleanup.h in gpio-sim
- shrink code in gpio-sim using some common helpers
- convert the idio family of drivers to using gpio-regmap
- convert gpio-ws16c48 to using gpio-regmap
- use devres to simplify code in gpio-pisosr and gpio-mxc
- update gpio-sifive: support IRQ wake, improve interrupt handling,
allow building as module
- make gpio-ge and gpio-bcm-kona OF-independent (plus some minor
tweaks)
- add support for new models in gpio-pca953x and gpio-ds4520
- add runtime PM support to gpio-mxc
- fix a build warning in gpio-mxs
- add support for adding pin ranges to gpio-mlxbf3
- add counter/timer support to gpio-104-dio-48e
- switch to dynamic GPIO base allocation in gpio-vf610
- minor oneliners here and there
Device-tree bindings updates:
- enable the gpio-line-names property in snps,dw-apb and STMPE GPIO
- document new models in fsl-imx-gpio, ds4520 and pca95xx
- convert the bindings for brcm,kona-gpio to YAML"
* tag 'gpio-updates-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (94 commits)
gpio: pca953x: add support for TCA9538
dt-bindings: gpio: pca95xx: document new tca9538 chip
gpio: pca953x: Use i2c_get_match_data()
gpio: mlxbf3: use capital "OR" for multiple licenses in SPDX
gpio: pcf857x: Extend match data support for OF tables
gpio: vf610: switch to dynamic allocat GPIO base
gpiolib: provide and use gpiod_line_state_notify()
gpio: cdev: wake up lineevent poll() on device unbind
gpio: cdev: wake up linereq poll() on device unbind
gpio: cdev: wake up chardev poll() on device unbind
gpiolib: add a second blocking notifier to struct gpio_device
gpio: cdev: open-code to_gpio_chardev_data()
gpiolib: rename the gpio_device notifier
gpio: mlxbf3: Support add_pin_ranges()
gpio: mxc: Use helper function devm_clk_get_optional_enabled()
gpio: pca9570: fix kerneldoc
gpio: sim: simplify code with cleanup helpers
gpio: sim: replace memmove() + strstrip() with skip_spaces() + strim()
gpio: sim: simplify gpio_sim_device_config_live_store()
gpio: mxc: release the parent IRQ in runtime suspend
...
- New drivers
* Driver for Renesas HS3001
- Chip support added to existing drivers
* pmbus/mp2975 driver now supports MP2971 and MP2973
- Functional improvements
* Additional voltage and temperature sensor support for
NCT6798/NCT6799 in nt6755 driver
* it87 driver now detects AMDTSI sensor type
* dimmtemp now supports more than 32 DIMMs
- Driver removals
* sm665 driver removed as unsupportable and long since obsolete
- Minor fixes, cleanups, and simplifications in several drivers
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Merge tag 'hwmon-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
"New drivers:
- Renesas HS3001
Chip support added to existing drivers:
- pmbus/mp2975 driver now supports MP2971 and MP2973
Functional improvements:
- Additional voltage and temperature sensor support for
NCT6798/NCT6799 in nt6755 driver
- it87 driver now detects AMDTSI sensor type
- dimmtemp now supports more than 32 DIMMs
Driver removals:
- sm665 driver removed as unsupportable and long since obsolete
.. and minor fixes, cleanups, and simplifications in several drivers"
* tag 'hwmon-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (57 commits)
hwmon: (tmp513) Simplify probe()
hwmon: (tmp513) Fix the channel number in tmp51x_is_visible()
hwmon: (mlxreg-fan) Extend number of supported fans
hwmon: (sis5595) Do PCI error checks on own line
hwmon: (vt8231) Do PCI error checks on own line
hwmon: (via686a) Do PCI error checks on own line
hwmon: pmbus: Fix -EIO seen on pli1209
hwmon: pmbus: Drop unnecessary clear fault page
hwmon: pmbus: Reduce clear fault page invocations
hwmon: (nsa320-hwmon) Remove redundant of_match_ptr()
hwmon: (pmbus/ucd9200) fix Wvoid-pointer-to-enum-cast warning
hwmon: (pmbus/ucd9000) fix Wvoid-pointer-to-enum-cast warning
hwmon: (pmbus/tps53679) fix Wvoid-pointer-to-enum-cast warning
hwmon: (pmbus/ibm-cffps) fix Wvoid-pointer-to-enum-cast warning
hwmon: (tmp513) fix Wvoid-pointer-to-enum-cast warning
hwmon: (max6697) fix Wvoid-pointer-to-enum-cast warning
hwmon: (max20730) fix Wvoid-pointer-to-enum-cast warning
hwmon: (lm90) fix Wvoid-pointer-to-enum-cast warning
hwmon: (lm85) fix Wvoid-pointer-to-enum-cast warning
hwmon: (lm75) fix Wvoid-pointer-to-enum-cast warning
...
- Convert drivers to use the ->remove_new() callback
- Propagate the removable attribute for the card's device
MMC host:
- Convert drivers to use the ->remove_new() callback
- atmel-mci: Convert to gpio descriptors and cleanup the code
- davinci: Make SDIO irq truly optional
- renesas_sdhi: Register irqs before registering controller
- sdhci: Simplify the sdhci_pltfm_* interface a bit
- sdhci-esdhc-imx: Improve support for the 1.8V errata
- sdhci-of-at91: Add support for the microchip sam9x7 variant
- sdhci-of-dwcmshc: Add support for runtime PM
- sdhci-pci-o2micro: Add support for the new Bayhub GG8 variant
- sdhci-sprd: Add support for SD high-speed mode tuning
- uniphier-sd: Register irqs before registering controller
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Merge tag 'mmc-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Convert drivers to use the ->remove_new() callback
- Propagate the removable attribute for the card's device
MMC host:
- Convert drivers to use the ->remove_new() callback
- atmel-mci: Convert to gpio descriptors and cleanup the code
- davinci: Make SDIO irq truly optional
- renesas_sdhi: Register irqs before registering controller
- sdhci: Simplify the sdhci_pltfm_* interface a bit
- sdhci-esdhc-imx: Improve support for the 1.8V errata
- sdhci-of-at91: Add support for the microchip sam9x7 variant
- sdhci-of-dwcmshc: Add support for runtime PM
- sdhci-pci-o2micro: Add support for the new Bayhub GG8 variant
- sdhci-sprd: Add support for SD high-speed mode tuning
- uniphier-sd: Register irqs before registering controller"
* tag 'mmc-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (108 commits)
mmc: atmel-mci: Move card detect gpio polarity quirk to gpiolib
mmc: atmel-mci: move atmel MCI header file
mmc: atmel-mci: Convert to gpio descriptors
mmc: sdhci-sprd: Add SD HS mode online tuning
mmc: core: Add host specific tuning support for SD HS mode
mmc: sdhci-of-dwcmshc: Add runtime PM operations
mmc: sdhci-of-dwcmshc: Add error handling in dwcmshc_resume
mmc: sdhci-esdhc-imx: improve ESDHC_FLAG_ERR010450
mmc: sdhci-pltfm: Rename sdhci_pltfm_register()
mmc: sdhci-pltfm: Remove sdhci_pltfm_unregister()
mmc: sdhci-st: Use sdhci_pltfm_remove()
mmc: sdhci-pxav2: Use sdhci_pltfm_remove()
mmc: sdhci-of-sparx5: Use sdhci_pltfm_remove()
mmc: sdhci-of-hlwd: Use sdhci_pltfm_remove()
mmc: sdhci-of-esdhc: Use sdhci_pltfm_remove()
mmc: sdhci-of-at91: Use sdhci_pltfm_remove()
mmc: sdhci-of-arasan: Use sdhci_pltfm_remove()
mmc: sdhci-iproc: Use sdhci_pltfm_remove()
mmc: sdhci_f_sdh30: Use sdhci_pltfm_remove()
mmc: sdhci-dove: Use sdhci_pltfm_remove()
...
There's been quite a lot of generic activity here, but more
administrative than featuers. We also have a bunch of new drivers,
including one that's part of a MFD so we pulled in the core parts of
that:
- Lots of work from both Yang Yingliang and Andy Shevchenko on moving
to host/device/controller based terminology for devices.
- QuadSPI SPI support for Allwinner sun6i.
- New device support Cirrus Logic CS43L43, Longsoon, Qualcomm GENI
QuPv3 and StarFive JH7110 QSPI.
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Merge tag 'spi-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"There's been quite a lot of generic activity here, but more
administrative than featuers. We also have a bunch of new drivers,
including one that's part of a MFD so we pulled in the core parts of
that:
- Lots of work from both Yang Yingliang and Andy Shevchenko on moving
to host/device/controller based terminology for devices.
- QuadSPI SPI support for Allwinner sun6i.
- New device support Cirrus Logic CS43L43, Longsoon, Qualcomm GENI
QuPv3 and StarFive JH7110 QSPI"
* tag 'spi-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (151 commits)
spi: at91-usart: Use PTR_ERR_OR_ZERO() to simplify code
spi: spi-sn-f-ospi: switch to use modern name
spi: sifive: switch to use modern name
spi: sh: switch to use modern name
spi: sh-sci: switch to use modern name
spi: sh-msiof: switch to use modern name
spi: sh-hspi: switch to use modern name
spi: sc18is602: switch to use modern name
spi: s3c64xx: switch to use modern name
spi: rzv2m-csi: switch to use devm_spi_alloc_host()
spi: rspi: switch to use spi_alloc_host()
spi: rockchip: switch to use modern name
spi: rockchip-sfc: switch to use modern name
spi: realtek-rtl: switch to use devm_spi_alloc_host()
spi: rb4xx: switch to use modern name
spi: qup: switch to use modern name
spi: spi-qcom-qspi: switch to use modern name
spi: pxa2xx: switch to use modern name
spi: ppc4xx: switch to use modern name
spi: spl022: switch to use modern name
...
Other tha new device support and some minor fixes this has been a really
quiet release, the only notable things are the new drivers. There's a
couple of MFDs among the new devices so the generic parts are pulled in:
- Support for Analog Devices MAX77831/57/59, Awinc AW37503, Qualcom
PMX75 and RFGEN, RealTek RT5733, RichTek RTQ2208 and Texas
Instruments TPS65086.
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Merge tag 'regulator-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"Other than new device support and some minor fixes this has been a
really quiet release, the only notable things are the new drivers.
There's a couple of MFDs among the new devices so the generic parts
are pulled in:
- Support for Analog Devices MAX77831/57/59, Awinc AW37503, Qualcom
PMX75 and RFGEN, RealTek RT5733, RichTek RTQ2208 and Texas
Instruments TPS65086"
* tag 'regulator-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (68 commits)
regulator: userspace-consumer: Drop event support for this cycle
regulator: aw37503: Switch back to use struct i2c_driver's .probe()
dt-bindings: regulator: qcom,rpmh-regulator: allow i, j, l, m & n as RPMh resource name suffix
regulator: dt-bindings: Add Awinic AW37503
regulator: aw37503: add regulator driver for Awinic AW37503
regulator: tps65086: Select dedicated regulator config for chip variant
mfd: tps65086: Read DEVICE ID register 1 from device
regulator: raa215300: Update help description
regulator: raa215300: Add missing blank space
regulator: raa215300: Change rate from 32000->32768
regulator: db8500-prcmu: Remove unused declaration power_state_active_is_enabled()
regulator: raa215300: Add const definition
regulator: raa215300: Fix resource leak in case of error
regulator: rtq2208: Switch back to use struct i2c_driver's .probe()
regulator: lp872x: Fix Wvoid-pointer-to-enum-cast warning
regulator: max77857: Fix Wvoid-pointer-to-enum-cast warning
regulator: ltc3589: Fix Wvoid-pointer-to-enum-cast warning
regulator: qcom_rpm-regulator: Use devm_kmemdup to replace devm_kmalloc + memcpy
regulator: tps6286x-regulator: Remove redundant of_match_ptr() macros
regulator: pfuze100-regulator: Remove redundant of_match_ptr() macro
...
This is a much quieter release than the past few, there's one small API
addition that I noticed a user for in ALSA and a bunch of cleanups:
- Provide an interface for determining if a register is present in the
cache and add a user of it in ALSA.
- Full support for dynamic allocations, following the temporary bodges
that were done as fixes in the previous release.
- Remove the unused and questionably working 64 bit support.
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Merge tag 'regmap-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"This is a much quieter release than the past few, there's one small
API addition that I noticed a user for in ALSA and a bunch of
cleanups:
- Provide an interface for determining if a register is present in
the cache and add a user of it in ALSA.
- Full support for dynamic allocations, following the temporary
bodges that were done as fixes in the previous release.
- Remove the unused and questionably working 64 bit support"
* tag 'regmap-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap:
regmap: Fix the type used for a bitmap pointer
regmap: Remove dynamic allocation warnings for rbtree and maple
regmap: rbtree: Use alloc_flags for memory allocations
regmap: maple: Use alloc_flags for memory allocations
regmap: Reject fast_io regmap configurations with RBTREE and MAPLE caches
ALSA: hda: Use regcache_reg_cached() rather than open coding
regmap: Provide test for regcache_reg_present()
regmap: Let users check if a register is cached
regmap: Provide user selectable option to enable regmap
regmap: mmio: Remove unused 64-bit support code
regmap: cache: Revert "Add 64-bit mode support"
regmap: Revert "add 64-bit mode support" and Co.
* explicitly include correct DT includes
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Merge tag 'hsi-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HSI update from Sebastian Reichel:
- explicitly include correct DT includes
* tag 'hsi-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
hsi: omap_ssi: Explicitly include correct DT includes
- hd44780: move cursor home after clear display command
The change allows to support displays like the NewHaven
NHD-0220DZW-AG5 which has a non-standard controller.
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Merge tag 'auxdisplay-6.6' of https://github.com/ojeda/linux
Pull auxdisplay update from Miguel Ojeda:
- hd44780: move cursor home after clear display command
The change allows to support displays like the NewHaven
NHD-0220DZW-AG5 which has a non-standard controller.
* tag 'auxdisplay-6.6' of https://github.com/ojeda/linux:
auxdisplay: hd44780: move cursor home after clear display command
In terms of lines, most changes this time are on the pinned-init API
and infrastructure. While we have a Rust version upgrade, and thus a
bunch of changes from the vendored 'alloc' crate as usual, this time
those do not account for many lines.
Toolchain and infrastructure:
- Upgrade to Rust 1.71.1. This is the second such upgrade, which is a
smaller jump compared to the last time.
This version allows us to remove the '__rust_*' allocator functions
-- the compiler now generates them as expected, thus now our
'KernelAllocator' is used.
It also introduces the 'offset_of!' macro in the standard library
(as an unstable feature) which we will need soon. So far, we were
using a declarative macro as a prerequisite in some not-yet-landed
patch series, which did not support sub-fields (i.e. nested structs):
#[repr(C)]
struct S {
a: u16,
b: (u8, u8),
}
assert_eq!(offset_of!(S, b.1), 3);
- Upgrade to bindgen 0.65.1. This is the first time we upgrade its
version.
Given it is a fairly big jump, it comes with a fair number of
improvements/changes that affect us, such as a fix needed to support
LLVM 16 as well as proper support for '__noreturn' C functions, which
are now mapped to return the '!' type in Rust:
void __noreturn f(void); // C
pub fn f() -> !; // Rust
- 'scripts/rust_is_available.sh' improvements and fixes.
This series takes care of all the issues known so far and adds a few
new checks to cover for even more cases, plus adds some more help
texts. All this together will hopefully make problematic setups
easier to identify and to be solved by users building the kernel.
In addition, it adds a test suite which covers all branches of the
shell script, as well as tests for the issues found so far.
- Support rust-analyzer for out-of-tree modules too.
- Give 'cfg's to rust-analyzer for the 'core' and 'alloc' crates.
- Drop 'scripts/is_rust_module.sh' since it is not needed anymore.
Macros crate:
- New 'paste!' proc macro.
This macro is a more flexible version of 'concat_idents!': it allows
the resulting identifier to be used to declare new items and it
allows to transform the identifiers before concatenating them, e.g.
let x_1 = 42;
paste!(let [<x _2>] = [<x _1>];);
assert!(x_1 == x_2);
The macro is then used for several of the pinned-init API changes in
this pull.
Pinned-init API:
- Make '#[pin_data]' compatible with conditional compilation of fields,
allowing to write code like:
#[pin_data]
pub struct Foo {
#[cfg(CONFIG_BAR)]
a: Bar,
#[cfg(not(CONFIG_BAR))]
a: Baz,
}
- New '#[derive(Zeroable)]' proc macro for the 'Zeroable' trait, which
allows 'unsafe' implementations for structs where every field
implements the 'Zeroable' trait, e.g.:
#[derive(Zeroable)]
pub struct DriverData {
id: i64,
buf_ptr: *mut u8,
len: usize,
}
- Add '..Zeroable::zeroed()' syntax to the 'pin_init!' macro for
zeroing all other fields, e.g.:
pin_init!(Buf {
buf: [1; 64],
..Zeroable::zeroed()
});
- New '{,pin_}init_array_from_fn()' functions to create array
initializers given a generator function, e.g.:
let b: Box<[usize; 1_000]> = Box::init::<Error>(
init_array_from_fn(|i| i)
).unwrap();
assert_eq!(b.len(), 1_000);
assert_eq!(b[123], 123);
- New '{,pin_}chain' methods for '{,Pin}Init<T, E>' that allow to
execute a closure on the value directly after initialization, e.g.:
let foo = init!(Foo {
buf <- init::zeroed()
}).chain(|foo| {
foo.setup();
Ok(())
});
- Support arbitrary paths in init macros, instead of just identifiers
and generic types.
- Implement the 'Zeroable' trait for the 'UnsafeCell<T>' and
'Opaque<T>' types.
- Make initializer values inaccessible after initialization.
- Make guards in the init macros hygienic.
'allocator' module:
- Use 'krealloc_aligned()' in 'KernelAllocator::alloc' preventing
misaligned allocations when the Rust 1.71.1 upgrade is applied later
in this pull.
The equivalent fix for the previous compiler version (where
'KernelAllocator' is not yet used) was merged into 6.5 already,
which added the 'krealloc_aligned()' function used here.
- Implement 'KernelAllocator::{realloc, alloc_zeroed}' for performance,
using 'krealloc_aligned()' too, which forwards the call to the C API.
'types' module:
- Make 'Opaque' be '!Unpin', removing the need to add a 'PhantomPinned'
field to Rust structs that contain C structs which must not be moved.
- Make 'Opaque' use 'UnsafeCell' as the outer type, rather than inner.
Documentation:
- Suggest obtaining the source code of the Rust's 'core' library using
the tarball instead of the repository.
MAINTAINERS:
- Andreas and Alice, from Samsung and Google respectively, are joining
as reviewers of the "RUST" entry.
As well as a few other minor changes and cleanups.
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Merge tag 'rust-6.6' of https://github.com/Rust-for-Linux/linux
Pull rust updates from Miguel Ojeda:
"In terms of lines, most changes this time are on the pinned-init API
and infrastructure. While we have a Rust version upgrade, and thus a
bunch of changes from the vendored 'alloc' crate as usual, this time
those do not account for many lines.
Toolchain and infrastructure:
- Upgrade to Rust 1.71.1. This is the second such upgrade, which is a
smaller jump compared to the last time.
This version allows us to remove the '__rust_*' allocator functions
-- the compiler now generates them as expected, thus now our
'KernelAllocator' is used.
It also introduces the 'offset_of!' macro in the standard library
(as an unstable feature) which we will need soon. So far, we were
using a declarative macro as a prerequisite in some not-yet-landed
patch series, which did not support sub-fields (i.e. nested
structs):
#[repr(C)]
struct S {
a: u16,
b: (u8, u8),
}
assert_eq!(offset_of!(S, b.1), 3);
- Upgrade to bindgen 0.65.1. This is the first time we upgrade its
version.
Given it is a fairly big jump, it comes with a fair number of
improvements/changes that affect us, such as a fix needed to
support LLVM 16 as well as proper support for '__noreturn' C
functions, which are now mapped to return the '!' type in Rust:
void __noreturn f(void); // C
pub fn f() -> !; // Rust
- 'scripts/rust_is_available.sh' improvements and fixes.
This series takes care of all the issues known so far and adds a
few new checks to cover for even more cases, plus adds some more
help texts. All this together will hopefully make problematic
setups easier to identify and to be solved by users building the
kernel.
In addition, it adds a test suite which covers all branches of the
shell script, as well as tests for the issues found so far.
- Support rust-analyzer for out-of-tree modules too.
- Give 'cfg's to rust-analyzer for the 'core' and 'alloc' crates.
- Drop 'scripts/is_rust_module.sh' since it is not needed anymore.
Macros crate:
- New 'paste!' proc macro.
This macro is a more flexible version of 'concat_idents!': it
allows the resulting identifier to be used to declare new items and
it allows to transform the identifiers before concatenating them,
e.g.
let x_1 = 42;
paste!(let [<x _2>] = [<x _1>];);
assert!(x_1 == x_2);
The macro is then used for several of the pinned-init API changes
in this pull.
Pinned-init API:
- Make '#[pin_data]' compatible with conditional compilation of
fields, allowing to write code like:
#[pin_data]
pub struct Foo {
#[cfg(CONFIG_BAR)]
a: Bar,
#[cfg(not(CONFIG_BAR))]
a: Baz,
}
- New '#[derive(Zeroable)]' proc macro for the 'Zeroable' trait,
which allows 'unsafe' implementations for structs where every field
implements the 'Zeroable' trait, e.g.:
#[derive(Zeroable)]
pub struct DriverData {
id: i64,
buf_ptr: *mut u8,
len: usize,
}
- Add '..Zeroable::zeroed()' syntax to the 'pin_init!' macro for
zeroing all other fields, e.g.:
pin_init!(Buf {
buf: [1; 64],
..Zeroable::zeroed()
});
- New '{,pin_}init_array_from_fn()' functions to create array
initializers given a generator function, e.g.:
let b: Box<[usize; 1_000]> = Box::init::<Error>(
init_array_from_fn(|i| i)
).unwrap();
assert_eq!(b.len(), 1_000);
assert_eq!(b[123], 123);
- New '{,pin_}chain' methods for '{,Pin}Init<T, E>' that allow to
execute a closure on the value directly after initialization, e.g.:
let foo = init!(Foo {
buf <- init::zeroed()
}).chain(|foo| {
foo.setup();
Ok(())
});
- Support arbitrary paths in init macros, instead of just identifiers
and generic types.
- Implement the 'Zeroable' trait for the 'UnsafeCell<T>' and
'Opaque<T>' types.
- Make initializer values inaccessible after initialization.
- Make guards in the init macros hygienic.
'allocator' module:
- Use 'krealloc_aligned()' in 'KernelAllocator::alloc' preventing
misaligned allocations when the Rust 1.71.1 upgrade is applied
later in this pull.
The equivalent fix for the previous compiler version (where
'KernelAllocator' is not yet used) was merged into 6.5 already,
which added the 'krealloc_aligned()' function used here.
- Implement 'KernelAllocator::{realloc, alloc_zeroed}' for
performance, using 'krealloc_aligned()' too, which forwards the
call to the C API.
'types' module:
- Make 'Opaque' be '!Unpin', removing the need to add a
'PhantomPinned' field to Rust structs that contain C structs which
must not be moved.
- Make 'Opaque' use 'UnsafeCell' as the outer type, rather than
inner.
Documentation:
- Suggest obtaining the source code of the Rust's 'core' library
using the tarball instead of the repository.
MAINTAINERS:
- Andreas and Alice, from Samsung and Google respectively, are
joining as reviewers of the "RUST" entry.
As well as a few other minor changes and cleanups"
* tag 'rust-6.6' of https://github.com/Rust-for-Linux/linux: (42 commits)
rust: init: update expanded macro explanation
rust: init: add `{pin_}chain` functions to `{Pin}Init<T, E>`
rust: init: make `PinInit<T, E>` a supertrait of `Init<T, E>`
rust: init: implement `Zeroable` for `UnsafeCell<T>` and `Opaque<T>`
rust: init: add support for arbitrary paths in init macros
rust: init: add functions to create array initializers
rust: init: add `..Zeroable::zeroed()` syntax for zeroing all missing fields
rust: init: make initializer values inaccessible after initializing
rust: init: wrap type checking struct initializers in a closure
rust: init: make guards in the init macros hygienic
rust: add derive macro for `Zeroable`
rust: init: make `#[pin_data]` compatible with conditional compilation of fields
rust: init: consolidate init macros
docs: rust: clarify what 'rustup override' does
docs: rust: update instructions for obtaining 'core' source
docs: rust: add command line to rust-analyzer section
scripts: generate_rust_analyzer: provide `cfg`s for `core` and `alloc`
rust: bindgen: upgrade to 0.65.1
rust: enable `no_mangle_with_rust_abi` Clippy lint
rust: upgrade to Rust 1.71.1
...
Contents:
- Restrict linking of keys to .ima and .evm keyrings based on
digitalSignature attribute in the certificate.
- PowerVM: load machine owner keys into the .machine [1] keyring.
- PowerVM: load module signing keys into the secondary trusted keyring
(keys blessed by the vendor).
- tpm_tis_spi: half-duplex transfer mode
- tpm_tis: retry corrupted transfers
- Apply revocation list (.mokx) to an all system keyrings (e.g. .machine
keyring).
[1] https://blogs.oracle.com/linux/post/the-machine-keyring
BR, Jarkko
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Merge tag 'tpmdd-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull tpm updates from Jarkko Sakkinen:
- Restrict linking of keys to .ima and .evm keyrings based on
digitalSignature attribute in the certificate
- PowerVM: load machine owner keys into the .machine [1] keyring
- PowerVM: load module signing keys into the secondary trusted keyring
(keys blessed by the vendor)
- tpm_tis_spi: half-duplex transfer mode
- tpm_tis: retry corrupted transfers
- Apply revocation list (.mokx) to an all system keyrings (e.g.
.machine keyring)
Link: https://blogs.oracle.com/linux/post/the-machine-keyring [1]
* tag 'tpmdd-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
certs: Reference revocation list for all keyrings
tpm/tpm_tis_synquacer: Use module_platform_driver macro to simplify the code
tpm: remove redundant variable len
tpm_tis: Resend command to recover from data transfer errors
tpm_tis: Use responseRetry to recover from data transfer errors
tpm_tis: Move CRC check to generic send routine
tpm_tis_spi: Add hardware wait polling
KEYS: Replace all non-returning strlcpy with strscpy
integrity: PowerVM support for loading third party code signing keys
integrity: PowerVM machine keyring enablement
integrity: check whether imputed trust is enabled
integrity: remove global variable from machine_keyring.c
integrity: ignore keys failing CA restrictions on non-UEFI platform
integrity: PowerVM support for loading CA keys on machine keyring
integrity: Enforce digitalSignature usage in the ima and evm keyrings
KEYS: DigitalSignature link restriction
tpm_tis: Revert "tpm_tis: Disable interrupts on ThinkPad T490s"
Eric Dumazet
Jakub Kicinski
Björn Töpel
Daniel Borkmann
Jiri Olsa
Vishal Chourasia
Magnus Karlsson
Florian Westphal
Donald Hunter
Oliver Neukum
Russell King (Oracle)
Phil Sutter
Wander Lairson Costa
Xiao Liang
David Vernet
Heng Guo
John Fastabend
Eduard Zingerman
Will Hawkins
Yonghong Song
Tirthendu Sarkar
Yafang Shao
Linus Torvalds