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803370d3d37579e080e8c59f2360a072d0e45aff
1191547 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Anton Protopopov
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803370d3d3 |
bpf: add a new kfunc to return current bpf_map elements count
A bpf_map_sum_elem_count kfunc was added to simplify getting the sum of the map per-cpu element counters. If a map doesn't implement the counter, then the function will always return 0. Signed-off-by: Anton Protopopov <aspsk@isovalent.com> Link: https://lore.kernel.org/r/20230706133932.45883-3-aspsk@isovalent.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Anton Protopopov
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2595473046 |
bpf: add percpu stats for bpf_map elements insertions/deletions
Add a generic percpu stats for bpf_map elements insertions/deletions in order to keep track of both, the current (approximate) number of elements in a map and per-cpu statistics on update/delete operations. To expose these stats a particular map implementation should initialize the counter and adjust it as needed using the 'bpf_map_*_elem_count' helpers provided by this commit. Signed-off-by: Anton Protopopov <aspsk@isovalent.com> Link: https://lore.kernel.org/r/20230706133932.45883-2-aspsk@isovalent.com Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
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Hou Tao
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fd283ab196 |
selftests/bpf: Add benchmark for bpf memory allocator
The benchmark could be used to compare the performance of hash map
operations and the memory usage between different flavors of bpf memory
allocator (e.g., no bpf ma vs bpf ma vs reuse-after-gp bpf ma). It also
could be used to check the performance improvement or the memory saving
provided by optimization.
The benchmark creates a non-preallocated hash map which uses bpf memory
allocator and shows the operation performance and the memory usage of
the hash map under different use cases:
(1) overwrite
Each CPU overwrites nonoverlapping part of hash map. When each CPU
completes overwriting of 64 elements in hash map, it increases the
op_count.
(2) batch_add_batch_del
Each CPU adds then deletes nonoverlapping part of hash map in batch.
When each CPU adds and deletes 64 elements in hash map, it increases
the op_count twice.
(3) add_del_on_diff_cpu
Each two-CPUs pair adds and deletes nonoverlapping part of map
cooperatively. When each CPU adds or deletes 64 elements in hash map,
it will increase the op_count.
The following is the benchmark results when comparing between different
flavors of bpf memory allocator. These tests are conducted on a KVM guest
with 8 CPUs and 16 GB memory. The command line below is used to do all
the following benchmarks:
./bench htab-mem --use-case $name ${OPTS} -w3 -d10 -a -p8
These results show that preallocated hash map has both better performance
and smaller memory footprint.
(1) non-preallocated + no bpf memory allocator (v6.0.19)
use kmalloc() + call_rcu
overwrite per-prod-op: 11.24 ± 0.07k/s, avg mem: 82.64 ± 26.32MiB, peak mem: 119.18MiB
batch_add_batch_del per-prod-op: 18.45 ± 0.10k/s, avg mem: 50.47 ± 14.51MiB, peak mem: 94.96MiB
add_del_on_diff_cpu per-prod-op: 14.50 ± 0.03k/s, avg mem: 4.64 ± 0.73MiB, peak mem: 7.20MiB
(2) preallocated
OPTS=--preallocated
overwrite per-prod-op: 191.42 ± 0.09k/s, avg mem: 1.24 ± 0.00MiB, peak mem: 1.49MiB
batch_add_batch_del per-prod-op: 221.83 ± 0.17k/s, avg mem: 1.23 ± 0.00MiB, peak mem: 1.49MiB
add_del_on_diff_cpu per-prod-op: 39.66 ± 0.31k/s, avg mem: 1.47 ± 0.13MiB, peak mem: 1.75MiB
(3) normal bpf memory allocator
overwrite per-prod-op: 126.59 ± 0.02k/s, avg mem: 2.26 ± 0.00MiB, peak mem: 2.74MiB
batch_add_batch_del per-prod-op: 83.37 ± 0.20k/s, avg mem: 2.14 ± 0.17MiB, peak mem: 2.74MiB
add_del_on_diff_cpu per-prod-op: 21.25 ± 0.24k/s, avg mem: 17.50 ± 3.32MiB, peak mem: 28.87MiB
Acked-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20230704025039.938914-1-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
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Björn Töpel
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21be9e477f |
selftests/bpf: Honor $(O) when figuring out paths
When building the kselftests out-of-tree, e.g. ... | make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- \ | O=/tmp/kselftest headers | make ARCH=riscv CROSS_COMPILE=riscv64-linux-gnu- \ | O=/tmp/kselftest HOSTCC=gcc FORMAT= \ | SKIP_TARGETS="arm64 ia64 powerpc sparc64 x86 sgx" \ | -C tools/testing/selftests gen_tar ... the kselftest build would not pick up the correct GENDIR path, and therefore not including autoconf.h. Correct that by taking $(O) into consideration when figuring out the GENDIR path. Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230705113926.751791-3-bjorn@kernel.org |
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Björn Töpel
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ce1f289f54 |
selftests/bpf: Add F_NEEDS_EFFICIENT_UNALIGNED_ACCESS to some tests
Some verifier tests were missing F_NEEDS_EFFICIENT_UNALIGNED_ACCESS, which made the test fail. Add the flag where needed. Signed-off-by: Björn Töpel <bjorn@rivosinc.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20230705113926.751791-2-bjorn@kernel.org |
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Hou Tao
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cf6eeb8f9d |
bpf: Remove unnecessary ring buffer size check
The theoretical maximum size of ring buffer is about 64GB, but now the size of ring buffer is specified by max_entries in bpf_attr and its maximum value is (4GB - 1), and it won't be possible for overflow. So just remove the unnecessary size check in ringbuf_map_alloc() but keep the comments for possible extension in future. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Hou Tao <houtao1@huawei.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Closes: https://lore.kernel.org/bpf/9c636a63-1f3d-442d-9223-96c2dccb9469@moroto.mountain Link: https://lore.kernel.org/bpf/20230704074014.216616-1-houtao@huaweicloud.com |
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Andrii Nakryiko
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c20f9cef72 |
Merge branch 'libbpf: add netfilter link attach helper'
Florian Westphal says: ==================== v4: address comment from Daniel Xu: - use human-readable test names in 2/2 v3: address comments from Andrii: - prune verbose error message in 1/2 - use bpf_link_create internally in 1/2 - use subtests in patch 2/2 When initial netfilter bpf program type support got added one suggestion was to extend libbpf with a helper to ease attachment of nf programs to the hook locations. Add such a helper and a demo test case that attaches a dummy program to various combinations. I tested that the selftest fails when changing the expected outcome (i.e., set 'success' when it should fail and v.v.). ==================== Signed-off-by: Andrii Nakryiko <andrii@kernel.org> |
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Florian Westphal
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a94098d490 |
selftests/bpf: Add bpf_program__attach_netfilter helper test
Call bpf_program__attach_netfilter() with different protocol/hook/priority combinations. Test fails if supposedly-illegal attachments work (e.g., bogus protocol family, illegal priority and so on) or if a should-work attachment fails. Expected output: ./test_progs -t netfilter_link_attach #145/1 netfilter_link_attach/allzero:OK #145/2 netfilter_link_attach/invalid-pf:OK #145/3 netfilter_link_attach/invalid-hooknum:OK #145/4 netfilter_link_attach/invalid-priority-min:OK #145/5 netfilter_link_attach/invalid-priority-max:OK #145/6 netfilter_link_attach/invalid-flags:OK #145/7 netfilter_link_attach/invalid-inet-not-supported:OK #145/8 netfilter_link_attach/attach ipv4:OK #145/9 netfilter_link_attach/attach ipv6:OK Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Daniel Xu <dxu@dxuuu.xyz> Link: https://lore.kernel.org/bpf/20230628152738.22765-3-fw@strlen.de |
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Florian Westphal
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52364abb10 |
libbpf: Add netfilter link attach helper
Add new api function: bpf_program__attach_netfilter. It takes a bpf program (netfilter type), and a pointer to a option struct that contains the desired attachment (protocol family, priority, hook location, ...). It returns a pointer to a 'bpf_link' structure or NULL on error. Next patch adds new netfilter_basic test that uses this function to attach a program to a few pf/hook/priority combinations. v2: change name and use bpf_link_create. Suggested-by: Andrii Nakryiko <andrii.nakryiko@gmail.com> Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Acked-by: Daniel Xu <dxu@dxuuu.xyz> Link: https://lore.kernel.org/bpf/CAEf4BzZrmUv27AJp0dDxBDMY_B8e55-wLs8DUKK69vCWsCG_pQ@mail.gmail.com/ Link: https://lore.kernel.org/bpf/CAEf4BzZ69YgrQW7DHCJUT_X+GqMq_ZQQPBwopaJJVGFD5=d5Vg@mail.gmail.com/ Link: https://lore.kernel.org/bpf/20230628152738.22765-2-fw@strlen.de |
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Andrea Terzolo
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2d2c95162d |
libbpf: Skip modules BTF loading when CAP_SYS_ADMIN is missing
If during CO-RE relocations libbpf is not able to find the target type in the running kernel BTF, it searches for it in modules' BTF. The downside of this approach is that loading modules' BTF requires CAP_SYS_ADMIN and this prevents BPF applications from running with more granular capabilities (e.g. CAP_BPF) when they don't need to search types into modules' BTF. This patch skips by default modules' BTF loading phase when CAP_SYS_ADMIN is missing. Suggested-by: Andrii Nakryiko <andrii@kernel.org> Co-developed-by: Federico Di Pierro <nierro92@gmail.com> Signed-off-by: Federico Di Pierro <nierro92@gmail.com> Signed-off-by: Andrea Terzolo <andreaterzolo3@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/CAGQdkDvYU_e=_NX+6DRkL_-TeH3p+QtsdZwHkmH0w3Fuzw0C4w@mail.gmail.com Link: https://lore.kernel.org/bpf/20230626093614.21270-1-andreaterzolo3@gmail.com |
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Kui-Feng Lee
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539c7e67aa |
selftests/bpf: Verify that the cgroup_skb filters receive expected packets.
This test case includes four scenarios:
1. Connect to the server from outside the cgroup and close the connection
from outside the cgroup.
2. Connect to the server from outside the cgroup and close the connection
from inside the cgroup.
3. Connect to the server from inside the cgroup and close the connection
from outside the cgroup.
4. Connect to the server from inside the cgroup and close the connection
from inside the cgroup.
The test case is to verify that cgroup_skb/{egress, ingress} filters
receive expected packets including SYN, SYN/ACK, ACK, FIN, and FIN/ACK.
Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230624014600.576756-3-kuifeng@meta.com
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Kui-Feng Lee
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223f5f79f2 |
bpf, net: Check skb ownership against full socket.
Check skb ownership of an skb against full sockets instead of request_sock.
The filters were called only if an skb is owned by the sock that the skb is
sent out through. In another words, skb->sk should point to the sock that
it is sending through its egress. However, the filters would miss SYN/ACK
skbs that they are owned by a request_sock but sent through the listener
sock, that is the socket listening incoming connections.
However, the listener socket is also the full socket of the request socket.
We should use the full socket as the owner socket of an skb instead.
What is the ownership check for?
================================
BPF_CGROUP_RUN_PROG_INET_EGRESS() checked sk == skb->sk to ensure the
ownership of an skb. Alexei referred to a mailing list conversation [0]
that took place a few years ago. In that conversation, Daniel Borkmann
stated that:
Wouldn't that mean however, when you go through stacked devices that
you'd run the same eBPF cgroup program for skb->sk multiple times?
According to what Daniel said, the ownership check mentioned earlier
presumably prevents multiple calls of egress filters caused by an skb.
A test that reproduce this scenario shows that the BPF cgroup egress
programs can be called multiple times for one skb if this ownership
check is not there. So, we can not just remove this check.
Test Stacked Devices
====================
We use L2TP to build an environment of stacked devices. L2TP (Layer 2
Tunneling Protocol) is a tunneling protocol used to support virtual private
networks (VPNs). It relays encapsulated packets; for example in UDP, to its
peer by using a socket.
Using L2TP, packets are first sent through the IP stack and should then
arrive at an L2TP device. The device will expand its skb header to
encapsulate the packet. The skb will be sent back to the IP stack using
the socket that was made for the L2TP session. After that, the routing
process will occur once more, but this time for a new destination.
We changed tools/testing/selftests/net/l2tp.sh to set up a test environment
using L2TP. The run_ping() function in l2tp.sh is where the main change
occurred.
run_ping()
{
local desc="$1"
sleep 10
run_cmd host-1 ${ping6} -s 227 -c 4 -i 10 -I fc00:101::1
fc00:101::2
log_test $? 0 "IPv6 route through L2TP tunnel ${desc}"
sleep 10
}
The test will use L2TP devices to send PING messages. These messages will
have a message size of 227 bytes as a special label to distinguish them.
This is not an ideal solution, but works.
During the execution of the test script, bpftrace was attached to
ip6_finish_output() and l2tp_xmit_skb():
bpftrace -e '
kfunc:ip6_finish_output {
time("%H:%M:%S: ");
printf("ip6_finish_output skb=%p skb->len=%d cgroup=%p sk=%p
skb->sk=%p\n", args->skb, args->skb->len,
args->sk->sk_cgrp_data.cgroup, args->sk, args->skb->sk); }
kfunc:l2tp_xmit_skb {
time("%H:%M:%S: ");
printf("l2tp_xmit_skb skb=%p sk=%p\n", args->skb,
args->session->tunnel->sock); }'
The following is part of the output messages printed by bpftrace:
16:35:20: ip6_finish_output skb=0xffff888103d8e600 skb->len=275
cgroup=0xffff88810741f800 sk=0xffff888105f3b900
skb->sk=0xffff888105f3b900
16:35:20: l2tp_xmit_skb skb=0xffff888103d8e600 sk=0xffff888103dd6300
16:35:20: ip6_finish_output skb=0xffff888103d8e600 skb->len=337
cgroup=0xffff88810741f800 sk=0xffff888103dd6300
skb->sk=0xffff888105f3b900
16:35:20: ip6_finish_output skb=0xffff888103d8e600 skb->len=337
cgroup=(nil) sk=(nil) skb->sk=(nil)
16:35:20: ip6_finish_output skb=0xffff888103d8e000 skb->len=275
cgroup=0xffffffff837741d0 sk=0xffff888101fe0000
skb->sk=0xffff888101fe0000
16:35:20: l2tp_xmit_skb skb=0xffff888103d8e000 sk=0xffff888103483180
16:35:20: ip6_finish_output skb=0xffff888103d8e000 skb->len=337
cgroup=0xffff88810741f800 sk=0xffff888103483180
skb->sk=0xffff888101fe0000
16:35:20: ip6_finish_output skb=0xffff888103d8e000 skb->len=337
cgroup=(nil) sk=(nil) skb->sk=(nil)
The first four entries describe a PING message that was sent using the ping
command, whereas the following four entries describe the response received.
Multiple sockets are used to send one skb, including the socket used by the
L2TP session. This can be observed.
Based on this information, it seems that the ownership check is designed to
avoid multiple calls of egress filters caused by a single skb.
[0] https://lore.kernel.org/all/58193E9D.7040201@iogearbox.net/
Signed-off-by: Kui-Feng Lee <kuifeng@meta.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20230624014600.576756-2-kuifeng@meta.com
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Stanislav Fomichev
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2597a25cb8 |
selftests/bpf: Add test to exercise typedef walking
Add new bpf_fentry_test_sinfo with skb_shared_info argument and try to access frags. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20230626212522.2414485-2-sdf@google.com |
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Stanislav Fomichev
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819d43428a |
bpf: Resolve modifiers when walking structs
It is impossible to use skb_frag_t in the tracing program. Resolve typedefs when walking structs. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/20230626212522.2414485-1-sdf@google.com |
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Daniel Borkmann
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17e8e5d6e0 |
selftests/bpf: Fix bpf_nf failure upon test rerun
Alexei reported:
After fast forwarding bpf-next today bpf_nf test started to fail when
run twice:
$ ./test_progs -t bpf_nf
#17 bpf_nf:OK
Summary: 1/10 PASSED, 0 SKIPPED, 0 FAILED
$ ./test_progs -t bpf_nf
All error logs:
test_bpf_nf_ct:PASS:test_bpf_nf__open_and_load 0 nsec
test_bpf_nf_ct:PASS:iptables-legacy -t raw -A PREROUTING -j CONNMARK
--set-mark 42/0 0 nsec
(network_helpers.c:102: errno: Address already in use) Failed to bind socket
test_bpf_nf_ct:FAIL:start_server unexpected start_server: actual -1 < expected 0
#17/1 bpf_nf/xdp-ct:FAIL
test_bpf_nf_ct:PASS:test_bpf_nf__open_and_load 0 nsec
test_bpf_nf_ct:PASS:iptables-legacy -t raw -A PREROUTING -j CONNMARK
--set-mark 42/0 0 nsec
(network_helpers.c:102: errno: Address already in use) Failed to bind socket
test_bpf_nf_ct:FAIL:start_server unexpected start_server: actual -1 < expected 0
#17/2 bpf_nf/tc-bpf-ct:FAIL
#17 bpf_nf:FAIL
Summary: 0/8 PASSED, 0 SKIPPED, 1 FAILED
I was able to locally reproduce as well. Rearrange the connection teardown
so that the client closes its connection first so that we don't need to
linger in TCP time-wait.
Fixes:
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Dave Thaler
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85b0c6d490 |
bpf, docs: Fix definition of BPF_NEG operation
Instruction is an arithmetic negative, not a bitwise inverse. Signed-off-by: Dave Thaler <dthaler@microsoft.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: David Vernet <void@manifault.com> Link: https://lore.kernel.org/bpf/20230627213912.951-1-dthaler1968@googlemail.com |
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Fangrui Song
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bbaf1ff06a |
bpf: Replace deprecated -target with --target= for Clang
The -target option has been deprecated since clang 3.4 in 2013. Therefore, use
the preferred --target=bpf form instead. This also matches how we use --target=
in scripts/Makefile.clang.
Signed-off-by: Fangrui Song <maskray@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Yonghong Song <yhs@fb.com>
Acked-by: Quentin Monnet <quentin@isovalent.com>
Link:
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Sumitra Sharma
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da1a055d01 |
lib/test_bpf: Call page_address() on page acquired with GFP_KERNEL flag
generate_test_data() acquires a page with alloc_page(GFP_KERNEL). The GFP_KERNEL is typical for kernel-internal allocations. The caller requires ZONE_NORMAL or a lower zone for direct access. Therefore the page cannot come from ZONE_HIGHMEM. Thus there's no need to map it with kmap(). Also, the kmap() is being deprecated in favor of kmap_local_page() [1]. Hence, use a plain page_address() directly. Since the page passed to the page_address() is not from the highmem zone, the page_address() function will always return a valid kernel virtual address and will not return NULL. Hence, remove the check 'if (!ptr)'. Remove the unused variable 'ptr' and label 'err_free_page'. [1] https://lore.kernel.org/all/20220813220034.806698-1-ira.weiny@intel.com/ Reported-by: kernel test robot <lkp@intel.com> Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Signed-off-by: Sumitra Sharma <sumitraartsy@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Reviewed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Link: https://lore.kernel.org/bpf/20230623151644.GA434468@sumitra.com |
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Linus Torvalds
|
3a8a670eee |
Merge tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking changes from Jakub Kicinski:
"WiFi 7 and sendpage changes are the biggest pieces of work for this
release. The latter will definitely require fixes but I think that we
got it to a reasonable point.
Core:
- Rework the sendpage & splice implementations
Instead of feeding data into sockets page by page extend sendmsg
handlers to support taking a reference on the data, controlled by a
new flag called MSG_SPLICE_PAGES
Rework the handling of unexpected-end-of-file to invoke an
additional callback instead of trying to predict what the right
combination of MORE/NOTLAST flags is
Remove the MSG_SENDPAGE_NOTLAST flag completely
- Implement SCM_PIDFD, a new type of CMSG type analogous to
SCM_CREDENTIALS, but it contains pidfd instead of plain pid
- Enable socket busy polling with CONFIG_RT
- Improve reliability and efficiency of reporting for ref_tracker
- Auto-generate a user space C library for various Netlink families
Protocols:
- Allow TCP to shrink the advertised window when necessary, prevent
sk_rcvbuf auto-tuning from growing the window all the way up to
tcp_rmem[2]
- Use per-VMA locking for "page-flipping" TCP receive zerocopy
- Prepare TCP for device-to-device data transfers, by making sure
that payloads are always attached to skbs as page frags
- Make the backoff time for the first N TCP SYN retransmissions
linear. Exponential backoff is unnecessarily conservative
- Create a new MPTCP getsockopt to retrieve all info
(MPTCP_FULL_INFO)
- Avoid waking up applications using TLS sockets until we have a full
record
- Allow using kernel memory for protocol ioctl callbacks, paving the
way to issuing ioctls over io_uring
- Add nolocalbypass option to VxLAN, forcing packets to be fully
encapsulated even if they are destined for a local IP address
- Make TCPv4 use consistent hash in TIME_WAIT and SYN_RECV. Ensure
in-kernel ECMP implementation (e.g. Open vSwitch) select the same
link for all packets. Support L4 symmetric hashing in Open vSwitch
- PPPoE: make number of hash bits configurable
- Allow DNS to be overwritten by DHCPACK in the in-kernel DHCP client
(ipconfig)
- Add layer 2 miss indication and filtering, allowing higher layers
(e.g. ACL filters) to make forwarding decisions based on whether
packet matched forwarding state in lower devices (bridge)
- Support matching on Connectivity Fault Management (CFM) packets
- Hide the "link becomes ready" IPv6 messages by demoting their
printk level to debug
- HSR: don't enable promiscuous mode if device offloads the proto
- Support active scanning in IEEE 802.15.4
- Continue work on Multi-Link Operation for WiFi 7
BPF:
- Add precision propagation for subprogs and callbacks. This allows
maintaining verification efficiency when subprograms are used, or
in fact passing the verifier at all for complex programs,
especially those using open-coded iterators
- Improve BPF's {g,s}setsockopt() length handling. Previously BPF
assumed the length is always equal to the amount of written data.
But some protos allow passing a NULL buffer to discover what the
output buffer *should* be, without writing anything
- Accept dynptr memory as memory arguments passed to helpers
- Add routing table ID to bpf_fib_lookup BPF helper
- Support O_PATH FDs in BPF_OBJ_PIN and BPF_OBJ_GET commands
- Drop bpf_capable() check in BPF_MAP_FREEZE command (used to mark
maps as read-only)
- Show target_{obj,btf}_id in tracing link fdinfo
- Addition of several new kfuncs (most of the names are
self-explanatory):
- Add a set of new dynptr kfuncs: bpf_dynptr_adjust(),
bpf_dynptr_is_null(), bpf_dynptr_is_rdonly(), bpf_dynptr_size()
and bpf_dynptr_clone().
- bpf_task_under_cgroup()
- bpf_sock_destroy() - force closing sockets
- bpf_cpumask_first_and(), rework bpf_cpumask_any*() kfuncs
Netfilter:
- Relax set/map validation checks in nf_tables. Allow checking
presence of an entry in a map without using the value
- Increase ip_vs_conn_tab_bits range for 64BIT builds
- Allow updating size of a set
- Improve NAT tuple selection when connection is closing
Driver API:
- Integrate netdev with LED subsystem, to allow configuring HW
"offloaded" blinking of LEDs based on link state and activity
(i.e. packets coming in and out)
- Support configuring rate selection pins of SFP modules
- Factor Clause 73 auto-negotiation code out of the drivers, provide
common helper routines
- Add more fool-proof helpers for managing lifetime of MDIO devices
associated with the PCS layer
- Allow drivers to report advanced statistics related to Time Aware
scheduler offload (taprio)
- Allow opting out of VF statistics in link dump, to allow more VFs
to fit into the message
- Split devlink instance and devlink port operations
New hardware / drivers:
- Ethernet:
- Synopsys EMAC4 IP support (stmmac)
- Marvell 88E6361 8 port (5x1GE + 3x2.5GE) switches
- Marvell 88E6250 7 port switches
- Microchip LAN8650/1 Rev.B0 PHYs
- MediaTek MT7981/MT7988 built-in 1GE PHY driver
- WiFi:
- Realtek RTL8192FU, 2.4 GHz, b/g/n mode, 2T2R, 300 Mbps
- Realtek RTL8723DS (SDIO variant)
- Realtek RTL8851BE
- CAN:
- Fintek F81604
Drivers:
- Ethernet NICs:
- Intel (100G, ice):
- support dynamic interrupt allocation
- use meta data match instead of VF MAC addr on slow-path
- nVidia/Mellanox:
- extend link aggregation to handle 4, rather than just 2 ports
- spawn sub-functions without any features by default
- OcteonTX2:
- support HTB (Tx scheduling/QoS) offload
- make RSS hash generation configurable
- support selecting Rx queue using TC filters
- Wangxun (ngbe/txgbe):
- add basic Tx/Rx packet offloads
- add phylink support (SFP/PCS control)
- Freescale/NXP (enetc):
- report TAPRIO packet statistics
- Solarflare/AMD:
- support matching on IP ToS and UDP source port of outer
header
- VxLAN and GENEVE tunnel encapsulation over IPv4 or IPv6
- add devlink dev info support for EF10
- Virtual NICs:
- Microsoft vNIC:
- size the Rx indirection table based on requested
configuration
- support VLAN tagging
- Amazon vNIC:
- try to reuse Rx buffers if not fully consumed, useful for ARM
servers running with 16kB pages
- Google vNIC:
- support TCP segmentation of >64kB frames
- Ethernet embedded switches:
- Marvell (mv88e6xxx):
- enable USXGMII (88E6191X)
- Microchip:
- lan966x: add support for Egress Stage 0 ACL engine
- lan966x: support mapping packet priority to internal switch
priority (based on PCP or DSCP)
- Ethernet PHYs:
- Broadcom PHYs:
- support for Wake-on-LAN for BCM54210E/B50212E
- report LPI counter
- Microsemi PHYs: support RGMII delay configuration (VSC85xx)
- Micrel PHYs: receive timestamp in the frame (LAN8841)
- Realtek PHYs: support optional external PHY clock
- Altera TSE PCS: merge the driver into Lynx PCS which it is a
variant of
- CAN: Kvaser PCIEcan:
- support packet timestamping
- WiFi:
- Intel (iwlwifi):
- major update for new firmware and Multi-Link Operation (MLO)
- configuration rework to drop test devices and split the
different families
- support for segmented PNVM images and power tables
- new vendor entries for PPAG (platform antenna gain) feature
- Qualcomm 802.11ax (ath11k):
- Multiple Basic Service Set Identifier (MBSSID) and Enhanced
MBSSID Advertisement (EMA) support in AP mode
- support factory test mode
- RealTek (rtw89):
- add RSSI based antenna diversity
- support U-NII-4 channels on 5 GHz band
- RealTek (rtl8xxxu):
- AP mode support for 8188f
- support USB RX aggregation for the newer chips"
* tag 'net-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1602 commits)
net: scm: introduce and use scm_recv_unix helper
af_unix: Skip SCM_PIDFD if scm->pid is NULL.
net: lan743x: Simplify comparison
netlink: Add __sock_i_ino() for __netlink_diag_dump().
net: dsa: avoid suspicious RCU usage for synced VLAN-aware MAC addresses
Revert "af_unix: Call scm_recv() only after scm_set_cred()."
phylink: ReST-ify the phylink_pcs_neg_mode() kdoc
libceph: Partially revert changes to support MSG_SPLICE_PAGES
net: phy: mscc: fix packet loss due to RGMII delays
net: mana: use vmalloc_array and vcalloc
net: enetc: use vmalloc_array and vcalloc
ionic: use vmalloc_array and vcalloc
pds_core: use vmalloc_array and vcalloc
gve: use vmalloc_array and vcalloc
octeon_ep: use vmalloc_array and vcalloc
net: usb: qmi_wwan: add u-blox 0x1312 composition
perf trace: fix MSG_SPLICE_PAGES build error
ipvlan: Fix return value of ipvlan_queue_xmit()
netfilter: nf_tables: fix underflow in chain reference counter
netfilter: nf_tables: unbind non-anonymous set if rule construction fails
...
|
||
|
Linus Torvalds
|
6a8cbd9253 |
Merge tag 'v6.5-rc1-sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull sysctl updates from Luis Chamberlain: "The changes for sysctl are in line with prior efforts to stop usage of deprecated routines which incur recursion and also make it hard to remove the empty array element in each sysctl array declaration. The most difficult user to modify was parport which required a bit of re-thinking of how to declare shared sysctls there, Joel Granados has stepped up to the plate to do most of this work and eventual removal of register_sysctl_table(). That work ended up saving us about 1465 bytes according to bloat-o-meter. Since we gained a few bloat-o-meter karma points I moved two rather small sysctl arrays from kernel/sysctl.c leaving us only two more sysctl arrays to move left. Most changes have been tested on linux-next for about a month. The last straggler patches are a minor parport fix, changes to the sysctl kernel selftest so to verify correctness and prevent regressions for the future change he made to provide an alternative solution for the special sysctl mount point target which was using the now deprecated sysctl child element. This is all prep work to now finally be able to remove the empty array element in all sysctl declarations / registrations which is expected to save us a bit of bytes all over the kernel. That work will be tested early after v6.5-rc1 is out" * tag 'v6.5-rc1-sysctl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: sysctl: replace child with an enumeration sysctl: Remove debugging dump_stack test_sysclt: Test for registering a mount point test_sysctl: Add an option to prevent test skip test_sysctl: Add an unregister sysctl test test_sysctl: Group node sysctl test under one func test_sysctl: Fix test metadata getters parport: plug a sysctl register leak sysctl: move security keys sysctl registration to its own file sysctl: move umh sysctl registration to its own file signal: move show_unhandled_signals sysctl to its own file sysctl: remove empty dev table sysctl: Remove register_sysctl_table sysctl: Refactor base paths registrations sysctl: stop exporting register_sysctl_table parport: Removed sysctl related defines parport: Remove register_sysctl_table from parport_default_proc_register parport: Remove register_sysctl_table from parport_device_proc_register parport: Remove register_sysctl_table from parport_proc_register parport: Move magic number "15" to a define |
||
|
Linus Torvalds
|
4e3c09e954 |
Merge tag 'v6.5-rc1-modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain: "The changes queued up for modules are pretty tame, mostly code removal of moving of code. Only two minor functional changes are made, the only one which stands out is Sebastian Andrzej Siewior's simplification of module reference counting by removing preempt_disable() and that has been tested on linux-next for well over a month without no regressions. I'm now, I guess, also a kitchen sink for some kallsyms changes" [ There was a mis-communication about the concurrent module load changes that I had expected to come through Luis despite me authoring the patch. So some of the module updates were left hanging in the email ether, and I just committed them separately. It's my bad - I should have made it more clear that I expected my own patches to come through the module tree too. Now they missed linux-next, but hopefully that won't cause any issues - Linus ] * tag 'v6.5-rc1-modules-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux: kallsyms: make kallsyms_show_value() as generic function kallsyms: move kallsyms_show_value() out of kallsyms.c kallsyms: remove unsed API lookup_symbol_attrs kallsyms: remove unused arch_get_kallsym() helper module: Remove preempt_disable() from module reference counting. |
||
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Linus Torvalds
|
9b9879fc03 |
modules: catch concurrent module loads, treat them as idempotent
This is the new-and-improved attempt at avoiding huge memory load spikes
when the user space boot sequence tries to load hundreds (or even
thousands) of redundant duplicate modules in parallel.
See commit
|
||
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Linus Torvalds
|
054a73009c |
module: split up 'finit_module()' into init_module_from_file() helper
This will simplify the next step, where we can then key off the inode to do one idempotent module load. Let's do the obvious re-organization in one step, and then the new code in another. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Linus Torvalds
|
89181f544f |
Merge tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC updates from Ulf Hansson:
"MMC core:
- Allow synchronous detection of (e)MMC/SD/SDIO cards
- Fixup error check for ioctls for SPI hosts
- Disable broken SD-Cache support for Kingston Canvas Go Plus from 2019
- Disable broken eMMC-Trim support for Kingston EMMC04G-M627
- Disable broken eMMC-Trim support for Micron MTFC4GACAJCN-1M
MMC host:
- bcm2835: Convert DT bindings to YAML
- mmci:
- Enable asynchronous probe
- Transform the ux500 HW-busy detection into a proper state machine
- Add support for SW busy-end timeouts for the ux500 variants
- mmci_stm32:
- Add support for sdm32 variant revision v3.0 used on STM32MP25
- Improve the tuning sequence
- mtk-sd: Tune polling-period to improve performance
- sdhci: Fixup DMA configuration for 64-bit DMA mode
- sdhci-bcm-kona: Convert DT bindings to YAML
- sdhci-msm:
- Switch to use the new ICE API
- Add support for the SC8280XP/IPQ6018/QDU1000/QRU1000 variants
- sdhci-pci-gli:
- Add support SD Express cards for GL9767
- Add support for the Genesys Logic GL9767 variant"
* tag 'mmc-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc: (42 commits)
dt-bindings: mmc: fsl-imx-esdhc: Add imx6ul support
mmc: mmci: Add support for SW busy-end timeouts
mmc: Add MMC_QUIRK_BROKEN_SD_CACHE for Kingston Canvas Go Plus from 11/2019
mmc: core: disable TRIM on Kingston EMMC04G-M627
mmc: mmci: stm32: add delay block support for STM32MP25
mmc: mmci: stm32: prepare other delay block support
mmc: mmci: stm32: manage block gap hardware flow control
mmc: mmci: Add support for sdmmc variant revision v3.0
mmc: mmci: add stm32_idmabsize_align parameter
dt-bindings: mmc: mmci: Add st,stm32mp25-sdmmc2 compatible
mmc: core: disable TRIM on Micron MTFC4GACAJCN-1M
mmc: mmci: Break out a helper function
mmc: mmci: Use a switch statement machine
mmc: mmci: Use state machine state as exit condition
mmc: mmci: Retry the busy start condition
mmc: mmci: Make busy complete state machine explicit
mmc: mmci: Break out error check in busy detect
mmc: mmci: Stash status while waiting for busy
mmc: mmci: Unwind big if() clause
mmc: mmci: Clear busy_status when starting command
...
|
||
|
Linus Torvalds
|
1364b4068a |
Merge tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from
"Core MTD changes:
- otp:
- Put factory OTP/NVRAM into the entropy pool
- Clean up on error in mtd_otp_nvmem_add()
MTD devices changes:
- sm_ftl: Fix typos in comments
- Use SPDX license headers
- pismo: Switch back to use i2c_driver's .probe()
- mtdpart: Drop useless LIST_HEAD
- st_spi_fsm: Use the devm_clk_get_enabled() helper function
DT binding changes:
- partitions:
- Include TP-Link SafeLoader in allowed list
- Add missing type for "linux,rootfs"
- Extend the nand node names filter
- Create a file for raw NAND chip properties
- Mark nand-ecc-placement deprecated
- Describe nand-ecc-mode
- Prevent NAND chip unevaluated properties in all NAND bindings with
a NAND chip reference.
- Qcom: Fix a property position
- Marvell: Convert to YAML DT schema
Raw NAND chip drivers changes:
- Macronix: OTP access for MX30LFxG18AC
- Add basic Sandisk manufacturer ops
- Add support for Sandisk SDTNQGAMA
Raw NAND controller driver changes:
- Meson:
- Replace integer consts with proper defines
- Allow waiting w/o wired ready/busy pin
- Check buffer length validity
- Fix unaligned DMA buffers handling
- dt-bindings: Fix 'nand-rb' property
- Arasan: Revert "mtd: rawnand: arasan: Prevent an unsupported
configuration" as this limitation is no longer true thanks to the
recent efforts in improving the clocks support in this driver
SPI-NAND changes:
- Gigadevice: add support for GD5F2GQ5xExxH
- Macronix: Add support for serial NAND flashes"
* tag 'mtd/for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (38 commits)
dt-bindings: mtd: marvell-nand: Convert to YAML DT scheme
dt-bindings: mtd: ti,am654: Prevent unevaluated properties
dt-bindings: mtd: mediatek: Prevent NAND chip unevaluated properties
dt-bindings: mtd: mediatek: Reference raw-nand-chip.yaml
dt-bindings: mtd: stm32: Prevent NAND chip unevaluated properties
dt-bindings: mtd: rockchip: Prevent NAND chip unevaluated properties
dt-bindings: mtd: intel: Prevent NAND chip unevaluated properties
dt-bindings: mtd: denali: Prevent NAND chip unevaluated properties
dt-bindings: mtd: brcmnand: Prevent NAND chip unevaluated properties
dt-bindings: mtd: meson: Prevent NAND chip unevaluated properties
dt-bindings: mtd: sunxi: Prevent NAND chip unevaluated properties
dt-bindings: mtd: ingenic: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Prevent NAND chip unevaluated properties
dt-bindings: mtd: qcom: Fix a property position
dt-bindings: mtd: Describe nand-ecc-mode
dt-bindings: mtd: Mark nand-ecc-placement deprecated
dt-bindings: mtd: Create a file for raw NAND chip properties
dt-bindings: mtd: Accept nand related node names
mtd: sm_ftl: Fix typos in comments
mtd: otp: clean up on error in mtd_otp_nvmem_add()
...
|
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|
Linus Torvalds
|
84fccbba93 |
Merge tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"One small core feature this time around but mostly driver improvements
and additions for SPI:
- Add support for controlling the idle state of MOSI, some systems
can support this and depending on the system integration may need
it to avoid glitching in some situations
- Support for polling mode in the S3C64xx driver and DMA on the
Qualcomm QSPI driver
- Support for several Allwinner SoCs, AMD Pensando Elba, Intel Mount
Evans, Renesas RZ/V2M, and ST STM32H7"
* tag 'spi-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (66 commits)
spi: dt-bindings: atmel,at91rm9200-spi: fix broken sam9x7 compatible
spi: dt-bindings: atmel,at91rm9200-spi: add sam9x7 compatible
spi: Add support for Renesas CSI
spi: dt-bindings: Add bindings for RZ/V2M CSI
spi: sun6i: Use the new helper to derive the xfer timeout value
spi: atmel: Prevent false timeouts on long transfers
spi: dt-bindings: stm32: do not disable spi-slave property for stm32f4-f7
spi: Create a helper to derive adaptive timeouts
spi: spi-geni-qcom: correctly handle -EPROBE_DEFER from dma_request_chan()
spi: stm32: disable spi-slave property for stm32f4-f7
spi: stm32: introduction of stm32h7 SPI device mode support
spi: stm32: use dmaengine_terminate_{a}sync instead of _all
spi: stm32: renaming of spi_master into spi_controller
spi: dw: Remove misleading comment for Mount Evans SoC
spi: dt-bindings: snps,dw-apb-ssi: Add compatible for Intel Mount Evans SoC
spi: dw: Add compatible for Intel Mount Evans SoC
spi: s3c64xx: Use dev_err_probe()
spi: s3c64xx: Use the managed spi master allocation function
spi: spl022: Probe defer is no error
spi: spi-imx: fix mixing of native and gpio chipselects for imx51/imx53/imx6 variants
...
|
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|
Linus Torvalds
|
362067b6d5 |
Merge tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator
Pull regulator updates from Mark Brown:
"This release is almost all drivers, there's some small improvements in
the core but otherwise everything is updates to drivers, mostly the
addition of new ones.
There's also a bunch of changes pulled in from the MFD subsystem as
dependencies, Rockchip and TI core MFD code that the regulator drivers
depend on.
I've also yet again managed to put a SPI commit in the regulator tree,
I don't know what it is about those two trees (this for
spi-geni-qcom).
Summary:
- Support for Renesas RAA215300, Rockchip RK808, Texas Instruments
TPS6594 and TPS6287x, and X-Powers AXP15060 and AXP313a"
* tag 'regulator-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator: (43 commits)
regulator: Add Renesas PMIC RAA215300 driver
regulator: dt-bindings: Add Renesas RAA215300 PMIC bindings
regulator: ltc3676: Use maple tree register cache
regulator: ltc3589: Use maple tree register cache
regulator: helper: Document ramp_delay parameter of regulator_set_ramp_delay_regmap()
regulator: mt6358: Use linear voltage helpers for single range regulators
regulator: mt6358: Const-ify mt6358_regulator_info data structures
regulator: mt6358: Drop *_SSHUB regulators
regulator: mt6358: Merge VCN33_* regulators
regulator: dt-bindings: mt6358: Drop *_sshub regulators
regulator: dt-bindings: mt6358: Merge ldo_vcn33_* regulators
regulator: dt-bindings: pwm-regulator: Add missing type for "pwm-dutycycle-unit"
regulator: Switch two more i2c drivers back to use .probe()
spi: spi-geni-qcom: Do not do DMA map/unmap inside driver, use framework instead
soc: qcom: geni-se: Add interfaces geni_se_tx_init_dma() and geni_se_rx_init_dma()
regulator: tps6594-regulator: Add driver for TI TPS6594 regulators
regulator: axp20x: Add AXP15060 support
regulator: axp20x: Add support for AXP313a variant
dt-bindings: pfuze100.yaml: Add an entry for interrupts
regulator: stm32-pwr: Fix regulator disabling
...
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|
Linus Torvalds
|
4171a9aa23 |
Merge tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap
Pull regmap updates from Mark Brown:
"Another busy release for regmap with the second half of the maple tree
register cache implementation, there's some smaller optimisations that
could be done but this should now be able to replace the rbtree cache
for most devices.
We also had a followup from Aidan MacDonald's refactoring of some of
the regmap-irq interfaces, the conversion is complete so the old
interfaces are removed. This means that even with the new features for
the maple tree cache we'd have a nice negative diffstat were it not
for the addition of a bunch more KUnit coverage.
There's one GPIO patch in here, it was a dependency for a cleanup of
an API in the regmap-irq code for which the gpio-104-dio-48e driver
was the only user.
Highlights:
- The maple tree cache can now load in default values more
efficiently, and is capabale of syncing multiple registers
in a single write during cache sync
- More KUnit coverage, including some coverage for raw I/O
and a dummy RAM backed cache to support it
- Removal of several old interfaces in regmap-irq now all
users have been modernised"
* tag 'regmap-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regmap: (23 commits)
regmap: Allow reads from write only registers with the flat cache
regmap: Drop early readability check
regmap: Check for register readability before checking cache during read
regmap: Add test to make sure we don't sync to read only registers
regmap: Add a test case for write only registers
regmap: Add test that writes to write only registers are prevented
regmap: Add debugfs file for forcing field writes
regmap: Don't check for changes in regcache_set_val()
regmap: maple: Implement block sync for the maple tree cache
regmap: Provide basic KUnit coverage for the raw register I/O
regmap: Provide a ram backed regmap with raw support
regmap: Add missing cache_only checks
regmap: regmap-irq: Move handle_post_irq to before pm_runtime_put
regmap: Load register defaults in blocks rather than register by register
regmap: mmio: Allow passing an empty config->reg_stride
regmap-irq: Drop backward compatibility for inverted mask/unmask
regmap-irq: Minor adjustments to .handle_mask_sync()
regmap-irq: Remove support for not_fixed_stride
regmap-irq: Remove type registers
regmap-irq: Remove virtual registers
...
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Linus Torvalds
|
1b2c92a1cb |
x86/mem_encrypt: Remove stale mem_encrypt_init() declaration
The memory encryption initialization logic was moved from init/main.c into arch_cpu_finalize_init() in commit |
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Linus Torvalds
|
6581ccf03e |
mm: fix __access_remote_vm() GUP failure case
Commit |
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Linus Torvalds
|
77b1a7f7a0 |
Merge tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull non-mm updates from Andrew Morton: - Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in top-level directories - Douglas Anderson has added a new "buddy" mode to the hardlockup detector. It permits the detector to work on architectures which cannot provide the required interrupts, by having CPUs periodically perform checks on other CPUs - Zhen Lei has enhanced kexec's ability to support two crash regions - Petr Mladek has done a lot of cleanup on the hard lockup detector's Kconfig entries - And the usual bunch of singleton patches in various places * tag 'mm-nonmm-stable-2023-06-24-19-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (72 commits) kernel/time/posix-stubs.c: remove duplicated include ocfs2: remove redundant assignment to variable bit_off watchdog/hardlockup: fix typo in config HARDLOCKUP_DETECTOR_PREFER_BUDDY powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h devres: show which resource was invalid in __devm_ioremap_resource() watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64 watchdog/hardlockup: make HAVE_NMI_WATCHDOG sparc64-specific watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h watchdog/hardlockup: make the config checks more straightforward watchdog/hardlockup: sort hardlockup detector related config values a logical way watchdog/hardlockup: move SMP barriers from common code to buddy code watchdog/buddy: simplify the dependency for HARDLOCKUP_DETECTOR_PREFER_BUDDY watchdog/buddy: don't copy the cpumask in watchdog_next_cpu() watchdog/buddy: cleanup how watchdog_buddy_check_hardlockup() is called watchdog/hardlockup: remove softlockup comment in touch_nmi_watchdog() watchdog/hardlockup: in watchdog_hardlockup_check() use cpumask_copy() watchdog/hardlockup: don't use raw_cpu_ptr() in watchdog_hardlockup_kick() watchdog/hardlockup: HAVE_NMI_WATCHDOG must implement watchdog_hardlockup_probe() watchdog/hardlockup: keep kernel.nmi_watchdog sysctl as 0444 if probe fails ... |
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Linus Torvalds
|
6e17c6de3d |
Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull mm updates from Andrew Morton: - Yosry Ahmed brought back some cgroup v1 stats in OOM logs - Yosry has also eliminated cgroup's atomic rstat flushing - Nhat Pham adds the new cachestat() syscall. It provides userspace with the ability to query pagecache status - a similar concept to mincore() but more powerful and with improved usability - Mel Gorman provides more optimizations for compaction, reducing the prevalence of page rescanning - Lorenzo Stoakes has done some maintanance work on the get_user_pages() interface - Liam Howlett continues with cleanups and maintenance work to the maple tree code. Peng Zhang also does some work on maple tree - Johannes Weiner has done some cleanup work on the compaction code - David Hildenbrand has contributed additional selftests for get_user_pages() - Thomas Gleixner has contributed some maintenance and optimization work for the vmalloc code - Baolin Wang has provided some compaction cleanups, - SeongJae Park continues maintenance work on the DAMON code - Huang Ying has done some maintenance on the swap code's usage of device refcounting - Christoph Hellwig has some cleanups for the filemap/directio code - Ryan Roberts provides two patch series which yield some rationalization of the kernel's access to pte entries - use the provided APIs rather than open-coding accesses - Lorenzo Stoakes has some fixes to the interaction between pagecache and directio access to file mappings - John Hubbard has a series of fixes to the MM selftesting code - ZhangPeng continues the folio conversion campaign - Hugh Dickins has been working on the pagetable handling code, mainly with a view to reducing the load on the mmap_lock - Catalin Marinas has reduced the arm64 kmalloc() minimum alignment from 128 to 8 - Domenico Cerasuolo has improved the zswap reclaim mechanism by reorganizing the LRU management - Matthew Wilcox provides some fixups to make gfs2 work better with the buffer_head code - Vishal Moola also has done some folio conversion work - Matthew Wilcox has removed the remnants of the pagevec code - their functionality is migrated over to struct folio_batch * tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits) mm/hugetlb: remove hugetlb_set_page_subpool() mm: nommu: correct the range of mmap_sem_read_lock in task_mem() hugetlb: revert use of page_cache_next_miss() Revert "page cache: fix page_cache_next/prev_miss off by one" mm/vmscan: fix root proactive reclaim unthrottling unbalanced node mm: memcg: rename and document global_reclaim() mm: kill [add|del]_page_to_lru_list() mm: compaction: convert to use a folio in isolate_migratepages_block() mm: zswap: fix double invalidate with exclusive loads mm: remove unnecessary pagevec includes mm: remove references to pagevec mm: rename invalidate_mapping_pagevec to mapping_try_invalidate mm: remove struct pagevec net: convert sunrpc from pagevec to folio_batch i915: convert i915_gpu_error to use a folio_batch pagevec: rename fbatch_count() mm: remove check_move_unevictable_pages() drm: convert drm_gem_put_pages() to use a folio_batch i915: convert shmem_sg_free_table() to use a folio_batch scatterlist: add sg_set_folio() ... |
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Linus Torvalds
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6aeadf7896 |
Merge tag 'docs-arm64-move' of git://git.lwn.net/linux
Pull arm64 documentation move from Jonathan Corbet: "Move the arm64 architecture documentation under Documentation/arch/. This brings some order to the documentation directory, declutters the top-level directory, and makes the documentation organization more closely match that of the source" * tag 'docs-arm64-move' of git://git.lwn.net/linux: perf arm-spe: Fix a dangling Documentation/arm64 reference mm: Fix a dangling Documentation/arm64 reference arm64: Fix dangling references to Documentation/arm64 dt-bindings: fix dangling Documentation/arm64 reference docs: arm64: Move arm64 documentation under Documentation/arch/ |
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Linus Torvalds
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582c161cf3 |
Merge tag 'hardening-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook: "There are three areas of note: A bunch of strlcpy()->strscpy() conversions ended up living in my tree since they were either Acked by maintainers for me to carry, or got ignored for multiple weeks (and were trivial changes). The compiler option '-fstrict-flex-arrays=3' has been enabled globally, and has been in -next for the entire devel cycle. This changes compiler diagnostics (though mainly just -Warray-bounds which is disabled) and potential UBSAN_BOUNDS and FORTIFY _warning_ coverage. In other words, there are no new restrictions, just potentially new warnings. Any new FORTIFY warnings we've seen have been fixed (usually in their respective subsystem trees). For more details, see commit |
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Linus Torvalds
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8ad78685ff |
Merge tag 'pstore-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook: - Check for out-of-memory condition (Jiasheng Jiang) - Convert to platform remove callback returning void (Uwe Kleine-König) * tag 'pstore-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore/ram: Add check for kstrdup pstore/ram: Convert to platform remove callback returning void |
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Linus Torvalds
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d416a46c95 |
Merge tag 'execve-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull execve updates from Kees Cook: - Fix a few comments for correctness and typos (Baruch Siach) - Small simplifications for binfmt (Christophe JAILLET) - Set p_align to 4 for PT_NOTE in core dump (Fangrui Song) * tag 'execve-v6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: binfmt_elf: fix comment typo s/reset/regset/ elf: correct note name comment binfmt: Slightly simplify elf_fdpic_map_file() binfmt: Use struct_size() coredump, vmcore: Set p_align to 4 for PT_NOTE |
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Linus Torvalds
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98be618ad0 |
Merge tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next
Pull smack updates from Casey Schaufler: "There are two patches, both of which change how Smack initializes the SMACK64TRANSMUTE extended attribute. The first corrects the behavior of overlayfs, which creates inodes differently from other filesystems. The second ensures that transmute attributes specified by mount options are correctly assigned" * tag 'Smack-for-6.5' of https://github.com/cschaufler/smack-next: smack: Record transmuting in smk_transmuted smack: Retrieve transmuting information in smack_inode_getsecurity() |
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Linus Torvalds
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b4c7f2e6ef |
Merge tag 'integrity-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity
Pull integrity subsystem updates from Mimi Zohar:
"An i_version change, one bug fix, and three kernel doc fixes:
- instead of IMA detecting file change by directly accesssing
i_version, it now calls vfs_getattr_nosec().
- fix a race condition when inserting a new node in the iint rb-tree"
* tag 'integrity-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
ima: Fix build warnings
evm: Fix build warnings
evm: Complete description of evm_inode_setattr()
integrity: Fix possible multiple allocation in integrity_inode_get()
IMA: use vfs_getattr_nosec to get the i_version
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Linus Torvalds
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21953eb16c |
Merge tag 'lsm-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm
Pull lsm updates from Paul Moore: - A SafeSetID patch to correct what appears to be a cut-n-paste typo in the code causing a UID to be printed where a GID was desired. This is coming via the LSM tree because we haven't been able to get a response from the SafeSetID maintainer (Micah Morton) in several months. Hopefully we are able to get in touch with Micah, but until we do I'm going to pick them up in the LSM tree. - A small fix to the reiserfs LSM xattr code. We're continuing to work through some issues with the reiserfs code as we try to fixup the LSM xattr handling, but in the process we're uncovering some ugly problems in reiserfs and we may just end up removing the LSM xattr support in reiserfs prior to reiserfs' removal. For better or worse, this shouldn't impact any of the reiserfs users, as we discovered that LSM xattrs on reiserfs were completely broken, meaning no one is currently using the combo of reiserfs and a file labeling LSM. - A tweak to how the cap_user_data_t struct/typedef is declared in the header file to appease the Sparse gods. - In the process of trying to sort out the SafeSetID lost-maintainer problem I realized that I needed to update the labeled networking entry to "Supported". - Minor comment/documentation and spelling fixes. * tag 'lsm-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/lsm: device_cgroup: Fix kernel-doc warnings in device_cgroup SafeSetID: fix UID printed instead of GID MAINTAINERS: move labeled networking to "supported" capability: erase checker warnings about struct __user_cap_data_struct lsm: fix a number of misspellings reiserfs: Initialize sec->length in reiserfs_security_init(). capability: fix kernel-doc warnings in capability.c |
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Linus Torvalds
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729b39ec1b |
Merge tag 'selinux-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull selinux updates from Paul Moore: - Thanks to help from the MPTCP folks, it looks like we have finally sorted out a proper solution to the MPTCP socket labeling issue, see the new security_mptcp_add_subflow() LSM hook. - Fix the labeled NFS handling such that a labeled NFS share mounted prior to the initial SELinux policy load is properly labeled once a policy is loaded; more information in the commit description. - Two patches to security/selinux/Makefile, the first took the cleanups in v6.4 a bit further and the second removed the grouped targets support as that functionality doesn't appear to be properly supported prior to make v4.3. - Deprecate the "fs" object context type in SELinux policies. The fs object context type was an old vestige that was introduced back in v2.6.12-rc2 but never really used. - A number of small changes that remove dead code, clean up some awkward bits, and generally improve the quality of the code. See the individual commit descriptions for more information. * tag 'selinux-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux: selinux: avoid bool as identifier name selinux: fix Makefile for versions of make < v4.3 selinux: make labeled NFS work when mounted before policy load selinux: cleanup exit_sel_fs() declaration selinux: deprecated fs ocon selinux: make header files self-including selinux: keep context struct members in sync selinux: Implement mptcp_add_subflow hook security, lsm: Introduce security_mptcp_add_subflow() selinux: small cleanups in selinux_audit_rule_init() selinux: declare read-only data arrays const selinux: retain const qualifier on string literal in avtab_hash_eval() selinux: drop return at end of void function avc_insert() selinux: avc: drop unused function avc_disable() selinux: adjust typos in comments selinux: do not leave dangling pointer behind selinux: more Makefile tweaks |
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Linus Torvalds
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cae72026b5 |
Merge tag 'audit-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
Pull audit update from Paul Moore: "A single audit patch that resolves two compiler warnings regarding missing function prototypes" * tag 'audit-pr-20230626' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit: audit: avoid missing-prototype warnings |
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Linus Torvalds
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26642864f8 |
Merge tag 'landlock-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull landlock updates from Mickaël Salaün: "Add support for Landlock to UML. To do this, this fixes the way hostfs manages inodes according to the underlying filesystem [1]. They are now properly handled as for other filesystems, which enables Landlock support (and probably other features). This also extends Landlock's tests with 6 pseudo filesystems, including hostfs" [1] https://lore.kernel.org/all/20230612191430.339153-1-mic@digikod.net/ * tag 'landlock-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: selftests/landlock: Add hostfs tests selftests/landlock: Add tests for pseudo filesystems selftests/landlock: Make mounts configurable selftests/landlock: Add supports_filesystem() helper selftests/landlock: Don't create useless file layouts hostfs: Fix ephemeral inodes |
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Linus Torvalds
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6e2332e0ab |
Merge tag 'cgroup-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup updates from Tejun Heo: - Whenever cpuset needs to rebuild sched_domain, it walked all tasks looking for DEADLINE tasks as they need to be accounted on the new domain. Walking all tasks can be expensive and there may not be any DEADLINE tasks at all. Task iteration is now omitted if there are no DEADLINE tasks - Fixes DEADLINE bandwidth misaccounting after task migration failures - When no controller is enabled, -Wstringop-overflow warning is triggered. The fix patch added an early exit which is too eager and got reverted for now. Will fix later - Everything else is minor cleanups * tag 'cgroup-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: Revert "cgroup: Avoid -Wstringop-overflow warnings" cgroup/misc: Expose misc.current on cgroup v2 root cgroup: Avoid -Wstringop-overflow warnings cgroup: remove obsolete comment on cgroup_on_dfl() cgroup: remove unused task_cgroup_path() cgroup/cpuset: remove unneeded header files cgroup: make cgroup_is_threaded() and cgroup_is_thread_root() static rdmacg: fix kernel-doc warnings in rdmacg cgroup: Replace the css_set call with cgroup_get cgroup: remove unused macro for_each_e_css() cgroup: Update out-of-date comment in cgroup_migrate() cgroup: Replace all non-returning strlcpy with strscpy cgroup/cpuset: remove unneeded header files cgroup/cpuset: Free DL BW in case can_attach() fails sched/deadline: Create DL BW alloc, free & check overflow interface cgroup/cpuset: Iterate only if DEADLINE tasks are present sched/cpuset: Keep track of SCHED_DEADLINE task in cpusets sched/cpuset: Bring back cpuset_mutex cgroup/cpuset: Rename functions dealing with DEADLINE accounting |
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Linus Torvalds
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72dc6db7e3 |
Merge tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull ordered workqueue creation updates from Tejun Heo: "For historical reasons, unbound workqueues with max concurrency limit of 1 are considered ordered, even though the concurrency limit hasn't been system-wide for a long time. This creates ambiguity around whether ordered execution is actually required for correctness, which was actually confusing for e.g. btrfs (btrfs updates are being routed through the btrfs tree). There aren't that many users in the tree which use the combination and there are pending improvements to unbound workqueue affinity handling which will make inadvertent use of ordered workqueue a bigger loss. This clarifies the situation for most of them by updating the ones which require ordered execution to use alloc_ordered_workqueue(). There are some conversions being routed through subsystem-specific trees and likely a few stragglers. Once they're all converted, workqueue can trigger a warning on unbound + @max_active==1 usages and eventually drop the implicit ordered behavior" * tag 'wq-for-6.5-cleanup-ordered' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: rxrpc: Use alloc_ordered_workqueue() to create ordered workqueues net: qrtr: Use alloc_ordered_workqueue() to create ordered workqueues net: wwan: t7xx: Use alloc_ordered_workqueue() to create ordered workqueues dm integrity: Use alloc_ordered_workqueue() to create ordered workqueues media: amphion: Use alloc_ordered_workqueue() to create ordered workqueues scsi: NCR5380: Use default @max_active for hostdata->work_q media: coda: Use alloc_ordered_workqueue() to create ordered workqueues crypto: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues wifi: ath10/11/12k: Use alloc_ordered_workqueue() to create ordered workqueues wifi: mwifiex: Use default @max_active for workqueues wifi: iwlwifi: Use default @max_active for trans_pcie->rba.alloc_wq xen/pvcalls: Use alloc_ordered_workqueue() to create ordered workqueues virt: acrn: Use alloc_ordered_workqueue() to create ordered workqueues net: octeontx2: Use alloc_ordered_workqueue() to create ordered workqueues net: thunderx: Use alloc_ordered_workqueue() to create ordered workqueues greybus: Use alloc_ordered_workqueue() to create ordered workqueues powerpc, workqueue: Use alloc_ordered_workqueue() to create ordered workqueues |
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Linus Torvalds
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7ab044a4f4 |
Merge tag 'wq-for-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
Pull workqueue updates from Tejun Heo:
- Concurrency-managed per-cpu work items that hog CPUs and delay the
execution of other work items are now automatically detected and
excluded from concurrency management. Reporting on such work items
can also be enabled through a config option.
- Added tools/workqueue/wq_monitor.py which improves visibility into
workqueue usages and behaviors.
- Arnd's minimal fix for gcc-13 enum warning on 32bit compiles,
superseded by commit
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Linus Torvalds
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18eb3b6dff |
Merge tag 'for-linus-6.5-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross: - three patches adding missing prototypes - a fix for finding the iBFT in a Xen dom0 for supporting diskless iSCSI boot * tag 'for-linus-6.5-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86: xen: add missing prototypes x86/xen: add prototypes for paravirt mmu functions iscsi_ibft: Fix finding the iBFT under Xen Dom 0 xen: xen_debug_interrupt prototype to global header |
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Linus Torvalds
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6a46676994 |
Merge tag 's390-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Alexander Gordeev: - Fix the style of protected key API driver source: use x-mas tree for all local variable declarations - Rework protected key API driver to not use the struct pkey_protkey and pkey_clrkey anymore. Both structures have a fixed size buffer, but with the support of ECC protected key these buffers are not big enough. Use dynamic buffers internally and transparently for userspace - Add support for a new 'non CCA clear key token' with ECC clear keys supported: ECC P256, ECC P384, ECC P521, ECC ED25519 and ECC ED448. This makes it possible to derive a protected key from the ECC clear key input via PKEY_KBLOB2PROTK3 ioctl, while currently the only way to derive is via PCKMO instruction - The s390 PMU of PAI crypto and extension 1 NNPA counters use atomic_t for reference counting. Replace this with the proper data type refcount_t - Select ARCH_SUPPORTS_INT128, but limit this to clang for now, since gcc generates inefficient code, which may lead to stack overflows - Replace one-element array with flexible-array member in struct vfio_ccw_parent and refactor the rest of the code accordingly. Also, prefer struct_size() over sizeof() open- coded versions - Introduce OS_INFO_FLAGS_ENTRY pointing to a flags field and OS_INFO_FLAG_REIPL_CLEAR flag that informs a dumper whether the system memory should be cleared or not once dumped - Fix a hang when a user attempts to remove a VFIO-AP mediated device attached to a guest: add VFIO_DEVICE_GET_IRQ_INFO and VFIO_DEVICE_SET_IRQS IOCTLs and wire up the VFIO bus driver callback to request a release of the device - Fix calculation for R_390_GOTENT relocations for modules - Allow any user space process with CAP_PERFMON capability read and display the CPU Measurement facility counter sets - Rework large statically-defined per-CPU cpu_cf_events data structure and replace it with dynamically allocated structures created when a perf_event_open() system call is invoked or /dev/hwctr device is accessed * tag 's390-6.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cpum_cf: rework PER_CPU_DEFINE of struct cpu_cf_events s390/cpum_cf: open access to hwctr device for CAP_PERFMON privileged process s390/module: fix rela calculation for R_390_GOTENT s390/vfio-ap: wire in the vfio_device_ops request callback s390/vfio-ap: realize the VFIO_DEVICE_SET_IRQS ioctl s390/vfio-ap: realize the VFIO_DEVICE_GET_IRQ_INFO ioctl s390/pkey: add support for ecc clear key s390/pkey: do not use struct pkey_protkey s390/pkey: introduce reverse x-mas trees s390/zcore: conditionally clear memory on reipl s390/ipl: add REIPL_CLEAR flag to os_info vfio/ccw: use struct_size() helper vfio/ccw: replace one-element array with flexible-array member s390: select ARCH_SUPPORTS_INT128 s390/pai_ext: replace atomic_t with refcount_t s390/pai_crypto: replace atomic_t with refcount_t |
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Linus Torvalds
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8d8026f376 |
Merge tag 'xtensa-20230627' of https://github.com/jcmvbkbc/linux-xtensa
Pull xtensa updates from Max Filippov: - clean up platform_* interface of the xtensa architecture - enable HAVE_ASM_MODVERSIONS - drop ARCH_WANT_FRAME_POINTERS - clean up unaligned access exception handler - provide handler for load/store exceptions - various small fixes and cleanups * tag 'xtensa-20230627' of https://github.com/jcmvbkbc/linux-xtensa: xtensa: dump userspace code around the exception PC xtensa: rearrange show_stack output xtensa: add load/store exception handler xtensa: rearrange unaligned exception handler xtensa: always install slow handler for unaligned access exception xtensa: move early_trap_init from kasan_early_init to init_arch xtensa: drop ARCH_WANT_FRAME_POINTERS xtensa: report trax and perf counters in cpuinfo xtensa: add asm-prototypes.h xtensa: only build __strncpy_user with CONFIG_ARCH_HAS_STRNCPY_FROM_USER xtensa: drop bcopy implementation xtensa: drop EXPORT_SYMBOL for common_exception_return xtensa: boot-redboot: clean up Makefile xtensa: clean up default platform functions xtensa: drop platform_halt and platform_power_off xtensa: drop platform_restart xtensa: drop platform_heartbeat xtensa: xt2000: drop empty platform_init |
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Dinh Nguyen
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0ae6122996 |
Revert "nios2: Convert __pte_free_tlb() to use ptdescs"
This reverts commit
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Linus Torvalds
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6f612579be |
Merge tag 'objtool-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molar:
"Build footprint & performance improvements:
- Reduce memory usage with CONFIG_DEBUG_INFO=y
In the worst case of an allyesconfig+CONFIG_DEBUG_INFO=y kernel,
DWARF creates almost 200 million relocations, ballooning objtool's
peak heap usage to 53GB. These patches reduce that to 25GB.
On a distro-type kernel with kernel IBT enabled, they reduce
objtool's peak heap usage from 4.2GB to 2.8GB.
These changes also improve the runtime significantly.
Debuggability improvements:
- Add the unwind_debug command-line option, for more extend unwinding
debugging output
- Limit unreachable warnings to once per function
- Add verbose option for disassembling affected functions
- Include backtrace in verbose mode
- Detect missing __noreturn annotations
- Ignore exc_double_fault() __noreturn warnings
- Remove superfluous global_noreturns entries
- Move noreturn function list to separate file
- Add __kunit_abort() to noreturns
Unwinder improvements:
- Allow stack operations in UNWIND_HINT_UNDEFINED regions
- drm/vmwgfx: Add unwind hints around RBP clobber
Cleanups:
- Move the x86 entry thunk restore code into thunk functions
- x86/unwind/orc: Use swap() instead of open coding it
- Remove unnecessary/unused variables
Fixes for modern stack canary handling"
* tag 'objtool-core-2023-06-27' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
x86/orc: Make the is_callthunk() definition depend on CONFIG_BPF_JIT=y
objtool: Skip reading DWARF section data
objtool: Free insns when done
objtool: Get rid of reloc->rel[a]
objtool: Shrink elf hash nodes
objtool: Shrink reloc->sym_reloc_entry
objtool: Get rid of reloc->jump_table_start
objtool: Get rid of reloc->addend
objtool: Get rid of reloc->type
objtool: Get rid of reloc->offset
objtool: Get rid of reloc->idx
objtool: Get rid of reloc->list
objtool: Allocate relocs in advance for new rela sections
objtool: Add for_each_reloc()
objtool: Don't free memory in elf_close()
objtool: Keep GElf_Rel[a] structs synced
objtool: Add elf_create_section_pair()
objtool: Add mark_sec_changed()
objtool: Fix reloc_hash size
objtool: Consolidate rel/rela handling
...
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