Consistently use %u to format unsigned numbers.
For "bits" this doesn't matter that much, as it is "uint8_t".
However, "speed" is "uint32_t", so in case people use "-s -1" to force
the maximum, they would see:
max speed: -1 Hz (4294967 KHz)
While at it, use "k" (kilo) instead of "K" (kelvin) in "kHz".
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200608100049.30648-1-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
Pull networking fixes from David Miller:
1) Fix memory leak in netfilter flowtable, from Roi Dayan.
2) Ref-count leaks in netrom and tipc, from Xiyu Yang.
3) Fix warning when mptcp socket is never accepted before close, from
Florian Westphal.
4) Missed locking in ovs_ct_exit(), from Tonghao Zhang.
5) Fix large delays during PTP synchornization in cxgb4, from Rahul
Lakkireddy.
6) team_mode_get() can hang, from Taehee Yoo.
7) Need to use kvzalloc() when allocating fw tracer in mlx5 driver,
from Niklas Schnelle.
8) Fix handling of bpf XADD on BTF memory, from Jann Horn.
9) Fix BPF_STX/BPF_B encoding in x86 bpf jit, from Luke Nelson.
10) Missing queue memory release in iwlwifi pcie code, from Johannes
Berg.
11) Fix NULL deref in macvlan device event, from Taehee Yoo.
12) Initialize lan87xx phy correctly, from Yuiko Oshino.
13) Fix looping between VRF and XFRM lookups, from David Ahern.
14) etf packet scheduler assumes all sockets are full sockets, which is
not necessarily true. From Eric Dumazet.
15) Fix mptcp data_fin handling in RX path, from Paolo Abeni.
16) fib_select_default() needs to handle nexthop objects, from David
Ahern.
17) Use GFP_ATOMIC under spinlock in mac80211_hwsim, from Wei Yongjun.
18) vxlan and geneve use wrong nlattr array, from Sabrina Dubroca.
19) Correct rx/tx stats in bcmgenet driver, from Doug Berger.
20) BPF_LDX zero-extension is encoded improperly in x86_32 bpf jit, fix
from Luke Nelson.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (100 commits)
selftests/bpf: Fix a couple of broken test_btf cases
tools/runqslower: Ensure own vmlinux.h is picked up first
bpf: Make bpf_link_fops static
bpftool: Respect the -d option in struct_ops cmd
selftests/bpf: Add test for freplace program with expected_attach_type
bpf: Propagate expected_attach_type when verifying freplace programs
bpf: Fix leak in LINK_UPDATE and enforce empty old_prog_fd
bpf, x86_32: Fix logic error in BPF_LDX zero-extension
bpf, x86_32: Fix clobbering of dst for BPF_JSET
bpf, x86_32: Fix incorrect encoding in BPF_LDX zero-extension
bpf: Fix reStructuredText markup
net: systemport: suppress warnings on failed Rx SKB allocations
net: bcmgenet: suppress warnings on failed Rx SKB allocations
macsec: avoid to set wrong mtu
mac80211: sta_info: Add lockdep condition for RCU list usage
mac80211: populate debugfs only after cfg80211 init
net: bcmgenet: correct per TX/RX ring statistics
net: meth: remove spurious copyright text
net: phy: bcm84881: clear settings on link down
chcr: Fix CPU hard lockup
...
Alexei Starovoitov says:
====================
pull-request: bpf 2020-04-24
The following pull-request contains BPF updates for your *net* tree.
We've added 17 non-merge commits during the last 5 day(s) which contain
a total of 19 files changed, 203 insertions(+), 85 deletions(-).
The main changes are:
1) link_update fix, from Andrii.
2) libbpf get_xdp_id fix, from David.
3) xadd verifier fix, from Jann.
4) x86-32 JIT fixes, from Luke and Wang.
5) test_btf fix, from Stanislav.
6) freplace verifier fix, from Toke.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Reorder include paths to ensure that runqslower sources are picking up
vmlinux.h, generated by runqslower's own Makefile. When runqslower is built
from selftests/bpf, due to current -I$(BPF_INCLUDE) -I$(OUTPUT) ordering, it
might pick up not-yet-complete vmlinux.h, generated by selftests Makefile,
which could lead to compilation errors like [0]. So ensure that -I$(OUTPUT)
goes first and rely on runqslower's Makefile own dependency chain to ensure
vmlinux.h is properly completed before source code relying on it is compiled.
[0] https://travis-ci.org/github/libbpf/libbpf/jobs/677905925
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200422012407.176303-1-andriin@fb.com
In the prog cmd, the "-d" option turns on the verifier log.
This is missed in the "struct_ops" cmd and this patch fixes it.
Fixes: 65c9362859 ("bpftool: Add struct_ops support")
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Quentin Monnet <quentin@isovalent.com>
Link: https://lore.kernel.org/bpf/20200424182911.1259355-1-kafai@fb.com
This adds a new selftest that tests the ability to attach an freplace
program to a program type that relies on the expected_attach_type of the
target program to pass verification.
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/158773526831.293902.16011743438619684815.stgit@toke.dk
Restore an optimization related to asynchronous suspend and resume of
devices during system-wide power transitions that was disabled by
mistake (Kai-Heng Feng) and update the pm-graph suite of power
management utilities (Todd Brandt).
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Merge tag 'pm-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"Restore an optimization related to asynchronous suspend and resume of
devices during system-wide power transitions that was disabled by
mistake (Kai-Heng Feng) and update the pm-graph suite of power
management utilities (Todd Brandt)"
* tag 'pm-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: sleep: core: Switch back to async_schedule_dev()
pm-graph v5.6
The commit in the Fixes tag changed get_xdp_id to only return prog_id
if flags is 0, but there are other XDP flags than the modes - e.g.,
XDP_FLAGS_UPDATE_IF_NOEXIST. Since the intention was only to look at
MODE flags, clear other ones before checking if flags is 0.
Fixes: f07cbad297 ("libbpf: Fix bpf_get_link_xdp_id flags handling")
Signed-off-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrey Ignatov <rdna@fb.com>
Sometimes, WARN_FUNC() and other users of symbol_by_offset() will
associate the first instruction of a symbol with the symbol preceding
it. This is because symbol->offset + symbol->len is already outside of
the symbol's range.
Fixes: 2a362ecc3e ("objtool: Optimize find_symbol_*() and read_symbols()")
Signed-off-by: Julien Thierry <jthierry@redhat.com>
Reviewed-by: Miroslav Benes <mbenes@suse.cz>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
fib_tests is spewing errors:
...
Cannot open network namespace "ns1": No such file or directory
Cannot open network namespace "ns1": No such file or directory
Cannot open network namespace "ns1": No such file or directory
Cannot open network namespace "ns1": No such file or directory
ping: connect: Network is unreachable
Cannot open network namespace "ns1": No such file or directory
Cannot open network namespace "ns1": No such file or directory
...
Each test entry in fib_tests is supposed to do its own setup and
cleanup. Right now the $IP commands in fib_suppress_test are
failing because there is no ns1. Add the setup/cleanup and logging
expected for each test.
Fixes: ca7a03c417 ("ipv6: do not free rt if FIB_LOOKUP_NOREF is set on suppress rule")
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This kselftest update for Linux 5.7-rc3 consists of fixes to runner
scripts and individual test run-time bugs. Includes fixes to tpm2
and memfd test run-time regressions.
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Merge tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest fixes from Shuah Khan:
"This consists of fixes to runner scripts and individual test run-time
bugs. Includes fixes to tpm2 and memfd test run-time regressions"
* tag 'linux-kselftest-5.7-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
selftests/ipc: Fix test failure seen after initial test run
Revert "Kernel selftests: tpm2: check for tpm support"
selftests/ftrace: Add CONFIG_SAMPLE_FTRACE_DIRECT=m kconfig
selftests/seccomp: allow clock_nanosleep instead of nanosleep
kselftest/runner: allow to properly deliver signals to tests
selftests/harness: fix spelling mistake "SIGARLM" -> "SIGALRM"
selftests: Fix memfd test run-time regression
selftests: vm: Fix 64-bit test builds for powerpc64le
selftests: vm: Do not override definition of ARCH
Merge misc fixes from Andrew Morton:
"15 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
tools/vm: fix cross-compile build
coredump: fix null pointer dereference on coredump
mm: shmem: disable interrupt when acquiring info->lock in userfaultfd_copy path
shmem: fix possible deadlocks on shmlock_user_lock
vmalloc: fix remap_vmalloc_range() bounds checks
mm/shmem: fix build without THP
mm/ksm: fix NULL pointer dereference when KSM zero page is enabled
tools/build: tweak unused value workaround
checkpatch: fix a typo in the regex for $allocFunctions
mm, gup: return EINTR when gup is interrupted by fatal signals
mm/hugetlb: fix a addressing exception caused by huge_pte_offset
MAINTAINERS: add an entry for kfifo
mm/userfaultfd: disable userfaultfd-wp on x86_32
slub: avoid redzone when choosing freepointer location
sh: fix build error in mm/init.c
Some bug fixes.
Cleanup a couple of issues that surfaced meanwhile.
Disable vhost on ARM with OABI for now - to be fixed
fully later in the cycle or in the next release.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio fixes and cleanups from Michael Tsirkin:
- Some bug fixes
- Cleanup a couple of issues that surfaced meanwhile
- Disable vhost on ARM with OABI for now - to be fixed fully later in
the cycle or in the next release.
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (24 commits)
vhost: disable for OABI
virtio: drop vringh.h dependency
virtio_blk: add a missing include
virtio-balloon: Avoid using the word 'report' when referring to free page hinting
virtio-balloon: make virtballoon_free_page_report() static
vdpa: fix comment of vdpa_register_device()
vdpa: make vhost, virtio depend on menu
vdpa: allow a 32 bit vq alignment
drm/virtio: fix up for include file changes
remoteproc: pull in slab.h
rpmsg: pull in slab.h
virtio_input: pull in slab.h
remoteproc: pull in slab.h
virtio-rng: pull in slab.h
virtgpu: pull in uaccess.h
tools/virtio: make asm/barrier.h self contained
tools/virtio: define aligned attribute
virtio/test: fix up after IOTLB changes
vhost: Create accessors for virtqueues private_data
vdpasim: Return status in vdpasim_get_status
...
Commit 7ed1c1901f ("tools: fix cross-compile var clobbering") moved
the setup of the CC variable to tools/scripts/Makefile.include to make
the behavior consistent across all the tools Makefiles.
As the vm tools missed the include we end up with the wrong CC in a
cross-compiling evironment.
Fixes: 7ed1c1901f (tools: fix cross-compile var clobbering)
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Martin Kelly <martin@martingkelly.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/20200416104748.25243-1-l.stach@pengutronix.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Clang has -Wself-assign enabled by default under -Wall, which always
gets -Werror'ed on this file, causing sync-compare-and-swap to be
disabled by default.
The generally-accepted way to spell "this value is intentionally
unused," is casting it to `void`. This is accepted by both GCC and
Clang with -Wall enabled: https://godbolt.org/z/qqZ9r3
Signed-off-by: George Burgess IV <gbiv@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Desaulniers <ndesaulniers@google.com>
Link: http://lkml.kernel.org/r/20200414195638.156123-1-gbiv@google.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds a test to test_verifier that writes the lower 8 bits of
R10 (aka FP) using BPF_B to an array map and reads the result back. The
expected behavior is that the result should be the same as first copying
R10 to R9, and then storing / loading the lower 8 bits of R9.
This test catches a bug that was present in the x86-64 JIT that caused
an incorrect encoding for BPF_STX BPF_B when the source operand is R10.
Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luke Nelson <luke.r.nels@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200418232655.23870-2-luke.r.nels@gmail.com
When check_xadd() verifies an XADD operation on a pointer to a stack slot
containing a spilled pointer, check_stack_read() verifies that the read,
which is part of XADD, is valid. However, since the placeholder value -1 is
passed as `value_regno`, check_stack_read() can only return a binary
decision and can't return the type of the value that was read. The intent
here is to verify whether the value read from the stack slot may be used as
a SCALAR_VALUE; but since check_stack_read() doesn't check the type, and
the type information is lost when check_stack_read() returns, this is not
enforced, and a malicious user can abuse XADD to leak spilled kernel
pointers.
Fix it by letting check_stack_read() verify that the value is usable as a
SCALAR_VALUE if no type information is passed to the caller.
To be able to use __is_pointer_value() in check_stack_read(), move it up.
Fix up the expected unprivileged error message for a BPF selftest that,
until now, assumed that unprivileged users can use XADD on stack-spilled
pointers. This also gives us a test for the behavior introduced in this
patch for free.
In theory, this could also be fixed by forbidding XADD on stack spills
entirely, since XADD is a locked operation (for operations on memory with
concurrency) and there can't be any concurrency on the BPF stack; but
Alexei has said that he wants to keep XADD on stack slots working to avoid
changes to the test suite [1].
The following BPF program demonstrates how to leak a BPF map pointer as an
unprivileged user using this bug:
// r7 = map_pointer
BPF_LD_MAP_FD(BPF_REG_7, small_map),
// r8 = launder(map_pointer)
BPF_STX_MEM(BPF_DW, BPF_REG_FP, BPF_REG_7, -8),
BPF_MOV64_IMM(BPF_REG_1, 0),
((struct bpf_insn) {
.code = BPF_STX | BPF_DW | BPF_XADD,
.dst_reg = BPF_REG_FP,
.src_reg = BPF_REG_1,
.off = -8
}),
BPF_LDX_MEM(BPF_DW, BPF_REG_8, BPF_REG_FP, -8),
// store r8 into map
BPF_MOV64_REG(BPF_REG_ARG1, BPF_REG_7),
BPF_MOV64_REG(BPF_REG_ARG2, BPF_REG_FP),
BPF_ALU64_IMM(BPF_ADD, BPF_REG_ARG2, -4),
BPF_ST_MEM(BPF_W, BPF_REG_ARG2, 0, 0),
BPF_EMIT_CALL(BPF_FUNC_map_lookup_elem),
BPF_JMP_IMM(BPF_JNE, BPF_REG_0, 0, 1),
BPF_EXIT_INSN(),
BPF_STX_MEM(BPF_DW, BPF_REG_0, BPF_REG_8, 0),
BPF_MOV64_IMM(BPF_REG_0, 0),
BPF_EXIT_INSN()
[1] https://lore.kernel.org/bpf/20200416211116.qxqcza5vo2ddnkdq@ast-mbp.dhcp.thefacebook.com/
Fixes: 17a5267067 ("bpf: verifier (add verifier core)")
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200417000007.10734-1-jannh@google.com
sleepgraph:
- force usage of python3 instead of using system default
- fix bugzilla 204773 (https://bugzilla.kernel.org/show_bug.cgi?id=204773)
- fix issue of platform info not being reset in -multi (logs fill up)
- change -ftop call to "pm_suspend", this is one level below state_store
- add -wificheck command to read out the current wifi device details
- change -wifi behavior to poll /proc/net/wireless for wifi connect
- add wifi reconnect time to timeline, include time in summary column
- add "fail on wifi_resume" to timeline and summary when wifi fails
- add a set of commands to collect data before/after suspend in the log
- add "-cmdinfo" command which prints out all the data collected
- check for cmd info tools at start, print found/missing in green/red
- fix kernel suspend time calculation: tool used to look for start of
pm_suspend_console, but the order has changed. latest kernel starts
with ksys_sync, use this instead
- include time spent in mem/disk in the header (same as freeze/standby)
- ignore turbostat 32-bit capability warnings
- print to result.txt when -skiphtml is used, just say result: pass
- don't exit on SIGTSTP, it's a ctrl-Z and the tool may come back
- -multi argument supports duration as well as count: hours, minutes, seconds
- update the -multi status output to be more informative
- -maxfail sets maximum consecutive fails before a -multi run is aborted
- in -summary, ignore dmesg/ftrace/html files that are 0 size
bootgraph:
- force usage of python3 instead of using system default
README:
- add endurance testing instructions
Makefile:
- remove pycache on uninstall
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
objtool:
- Ignore the double UD2 which is emitted in BUG() when CONFIG_UBSAN_TRAP
is enabled.
- Support clang non-section symbols in objtool ORC dump
- Fix switch table detection in .text.unlikely
- Make the BP scratch register warning more robust.
x86:
- Increase microcode maximum patch size for AMD to cope with new CPUs
which have a larger patch size.
- Fix a crash in the resource control filesystem when the removal of the
default resource group is attempted.
- Preserve Code and Data Prioritization enabled state accross CPU
hotplug.
- Update split lock cpu matching to use the new X86_MATCH macros.
- Change the split lock enumeration as Intel finaly decided that the
IA32_CORE_CAPABILITIES bits are not architectural contrary to what
the SDM claims. !@#%$^!
- Add Tremont CPU models to the split lock detection cpu match.
- Add a missing static attribute to make sparse happy.
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Merge tag 'x86-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 and objtool fixes from Thomas Gleixner:
"A set of fixes for x86 and objtool:
objtool:
- Ignore the double UD2 which is emitted in BUG() when
CONFIG_UBSAN_TRAP is enabled.
- Support clang non-section symbols in objtool ORC dump
- Fix switch table detection in .text.unlikely
- Make the BP scratch register warning more robust.
x86:
- Increase microcode maximum patch size for AMD to cope with new CPUs
which have a larger patch size.
- Fix a crash in the resource control filesystem when the removal of
the default resource group is attempted.
- Preserve Code and Data Prioritization enabled state accross CPU
hotplug.
- Update split lock cpu matching to use the new X86_MATCH macros.
- Change the split lock enumeration as Intel finaly decided that the
IA32_CORE_CAPABILITIES bits are not architectural contrary to what
the SDM claims. !@#%$^!
- Add Tremont CPU models to the split lock detection cpu match.
- Add a missing static attribute to make sparse happy"
* tag 'x86-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/split_lock: Add Tremont family CPU models
x86/split_lock: Bits in IA32_CORE_CAPABILITIES are not architectural
x86/resctrl: Preserve CDP enable over CPU hotplug
x86/resctrl: Fix invalid attempt at removing the default resource group
x86/split_lock: Update to use X86_MATCH_INTEL_FAM6_MODEL()
x86/umip: Make umip_insns static
x86/microcode/AMD: Increase microcode PATCH_MAX_SIZE
objtool: Make BP scratch register warning more robust
objtool: Fix switch table detection in .text.unlikely
objtool: Support Clang non-section symbols in ORC generation
objtool: Support Clang non-section symbols in ORC dump
objtool: Fix CONFIG_UBSAN_TRAP unreachable warnings
- Fix the header line of perf stat output for '--metric-only --per-socket'
- Fix the python build with clang
- The usual tools UAPI header synchronization
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Merge tag 'perf-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes and updates from Thomas Gleixner:
- Fix the header line of perf stat output for '--metric-only --per-socket'
- Fix the python build with clang
- The usual tools UAPI header synchronization
* tag 'perf-urgent-2020-04-19' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
tools headers: Synchronize linux/bits.h with the kernel sources
tools headers: Adopt verbatim copy of compiletime_assert() from kernel sources
tools headers: Update x86's syscall_64.tbl with the kernel sources
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h headers
tools headers kvm: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Sync linux/fscrypt.h with the kernel sources
tools include UAPI: Sync linux/vhost.h with the kernel sources
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
tools headers UAPI: Sync linux/mman.h with the kernel
tools headers UAPI: Sync sched.h with the kernel
tools headers: Update linux/vdso.h and grab a copy of vdso/const.h
perf stat: Fix no metric header if --per-socket and --metric-only set
perf python: Check if clang supports -fno-semantic-interposition
tools arch x86: Sync the msr-index.h copy with the kernel sources
Allow building vringh without IOTLB (that's the case for userspace
builds, will be useful for CAIF/VOD down the road too).
Update for API tweaks.
Don't include vringh with userspace builds.
Cc: Jason Wang <jasowang@redhat.com>
Cc: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Pull networking fixes from David Miller:
1) Disable RISCV BPF JIT builds when !MMU, from Björn Töpel.
2) nf_tables leaves dangling pointer after free, fix from Eric Dumazet.
3) Out of boundary write in __xsk_rcv_memcpy(), fix from Li RongQing.
4) Adjust icmp6 message source address selection when routes have a
preferred source address set, from Tim Stallard.
5) Be sure to validate HSR protocol version when creating new links,
from Taehee Yoo.
6) CAP_NET_ADMIN should be sufficient to manage l2tp tunnels even in
non-initial namespaces, from Michael Weiß.
7) Missing release firmware call in mlx5, from Eran Ben Elisha.
8) Fix variable type in macsec_changelink(), caught by KASAN. Fix from
Taehee Yoo.
9) Fix pause frame negotiation in marvell phy driver, from Clemens
Gruber.
10) Record RX queue early enough in tun packet paths such that XDP
programs will see the correct RX queue index, from Gilberto Bertin.
11) Fix double unlock in mptcp, from Florian Westphal.
12) Fix offset overflow in ARM bpf JIT, from Luke Nelson.
13) marvell10g needs to soft reset PHY when coming out of low power
mode, from Russell King.
14) Fix MTU setting regression in stmmac for some chip types, from
Florian Fainelli.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
amd-xgbe: Use __napi_schedule() in BH context
mISDN: make dmril and dmrim static
net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes
net: dsa: mt7530: fix tagged frames pass-through in VLAN-unaware mode
tipc: fix incorrect increasing of link window
Documentation: Fix tcp_challenge_ack_limit default value
net: tulip: make early_486_chipsets static
dt-bindings: net: ethernet-phy: add desciption for ethernet-phy-id1234.d400
ipv6: remove redundant assignment to variable err
net/rds: Use ERR_PTR for rds_message_alloc_sgs()
net: mscc: ocelot: fix untagged packet drops when enslaving to vlan aware bridge
selftests/bpf: Check for correct program attach/detach in xdp_attach test
libbpf: Fix type of old_fd in bpf_xdp_set_link_opts
libbpf: Always specify expected_attach_type on program load if supported
xsk: Add missing check on user supplied headroom size
mac80211: fix channel switch trigger from unknown mesh peer
mac80211: fix race in ieee80211_register_hw()
net: marvell10g: soft-reset the PHY when coming out of low power
net: marvell10g: report firmware version
net/cxgb4: Check the return from t4_query_params properly
...
David Ahern noticed that there was a bug in the EXPECTED_FD code so
programs did not get detached properly when that parameter was supplied.
This case was not included in the xdp_attach tests; so let's add it to be
sure that such a bug does not sneak back in down.
Fixes: 87854a0b57 ("selftests/bpf: Add tests for attaching XDP programs")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200414145025.182163-2-toke@redhat.com
The 'old_fd' parameter used for atomic replacement of XDP programs is
supposed to be an FD, but was left as a u32 from an earlier iteration of
the patch that added it. It was converted to an int when read, so things
worked correctly even with negative values, but better change the
definition to correctly reflect the intention.
Fixes: bd5ca3ef93 ("libbpf: Add function to set link XDP fd while specifying old program")
Reported-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: David Ahern <dsahern@gmail.com>
Acked-by: Song Liu <songliubraving@fb.com>
Link: https://lore.kernel.org/bpf/20200414145025.182163-1-toke@redhat.com
For some types of BPF programs that utilize expected_attach_type, libbpf won't
set load_attr.expected_attach_type, even if expected_attach_type is known from
section definition. This was done to preserve backwards compatibility with old
kernels that didn't recognize expected_attach_type attribute yet (which was
added in 5e43f899b0 ("bpf: Check attach type at prog load time"). But this
is problematic for some BPF programs that utilize newer features that require
kernel to know specific expected_attach_type (e.g., extended set of return
codes for cgroup_skb/egress programs).
This patch makes libbpf specify expected_attach_type by default, but also
detect support for this field in kernel and not set it during program load.
This allows to have a good metadata for bpf_program
(e.g., bpf_program__get_extected_attach_type()), but still work with old
kernels (for cases where it can work at all).
Additionally, due to expected_attach_type being always set for recognized
program types, bpf_program__attach_cgroup doesn't have to do extra checks to
determine correct attach type, so remove that additional logic.
Also adjust section_names selftest to account for this change.
More detailed discussion can be found in [0].
[0] https://lore.kernel.org/bpf/20200412003604.GA15986@rdna-mbp.dhcp.thefacebook.com/
Fixes: 5cf1e91456 ("bpf: cgroup inet skb programs can return 0 to 3")
Fixes: 5e43f899b0 ("bpf: Check attach type at prog load time")
Reported-by: Andrey Ignatov <rdna@fb.com>
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Song Liu <songliubraving@fb.com>
Acked-by: Andrey Ignatov <rdna@fb.com>
Link: https://lore.kernel.org/bpf/20200414182645.1368174-1-andriin@fb.com
In commit 65c9362859 ("bpftool: Add struct_ops support") a new
type of command named struct_ops has been added. This command requires
a kernel with CONFIG_DEBUG_INFO_BTF=y set and for retrieving BTF info
in bpftool, the helper get_btf_vmlinux() is used.
When running this command on kernel without BTF debug info, this will
lead to 'btf_vmlinux' variable being an invalid(error) pointer. And by
this, btf_free() causes a segfault when executing 'bpftool struct_ops'.
This commit adds pointer validation with IS_ERR not to free invalid
pointer, and this will fix the segfault issue.
Fixes: 65c9362859 ("bpftool: Add struct_ops support")
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200410020612.2930667-1-danieltimlee@gmail.com
Test that frozen and mmap()'ed BPF map can't be mprotect()'ed as writable or
executable memory. Also validate that "downgrading" from writable to read-only
doesn't screw up internal writable count accounting for the purposes of map
freezing.
Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20200410202613.3679837-2-andriin@fb.com
In the current code, it only removes *.o and .*.o.d file when make clean,
there still exists useless .*.o.cmd file, just remove it.
Without this patch:
[yangtiezhu@linux spi]$ make
[yangtiezhu@linux spi]$ make clean
[yangtiezhu@linux spi]$ ls -1 .*.o.cmd
.spidev_fdx-in.o.cmd
.spidev_fdx.o.cmd
.spidev_test-in.o.cmd
.spidev_test.o.cmd
With this patch:
[yangtiezhu@linux spi]$ make
[yangtiezhu@linux spi]$ make clean
[yangtiezhu@linux spi]$ ls -1 .*.o.cmd
ls: cannot access .*.o.cmd: No such file or directory
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Link: https://lore.kernel.org/r/1586230512-5507-1-git-send-email-yangtiezhu@loongson.cn
Signed-off-by: Mark Brown <broonie@kernel.org>
After successfully running the IPC msgque test once, subsequent runs
result in a test failure:
$ sudo ./run_kselftest.sh
TAP version 13
1..1
# selftests: ipc: msgque
# Failed to get stats for IPC queue with id 0
# Failed to dump queue: -22
# Bail out!
# # Pass 0 Fail 0 Xfail 0 Xpass 0 Skip 0 Error 0
not ok 1 selftests: ipc: msgque # exit=1
The dump_queue() function loops through the possible message queue index
values using calls to msgctl(kern_id, MSG_STAT, ...) where kern_id
represents the index value. The first time the test is ran, the initial
index value of 0 is valid and the test is able to complete. The index
value of 0 is not valid in subsequent test runs and the loop attempts to
try index values of 1, 2, 3, and so on until a valid index value is
found that corresponds to the message queue created earlier in the test.
The msgctl() syscall returns -1 and sets errno to EINVAL when invalid
index values are used. The test failure is caused by incorrectly
comparing errno to -EINVAL when cycling through possible index values.
Fix invalid test failures on subsequent runs of the msgque test by
correctly comparing errno values to a non-negated EINVAL.
Fixes: 3a665531a3 ("selftests: IPC message queue copy feature test")
Signed-off-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
This reverts commit b32694cd07.
The original comment was neither reviewed nor tested. Thus, this the
*only* possible action to take.
Cc: Nikita Sobolev <Nikita.Sobolev@synopsys.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
ftrace-direct.tc and kprobe-direct.tc require CONFIG_SAMPLE_FTRACE_DIRECT=m
so add it to config file which is used by merge_config.sh.
Signed-off-by: Xiao Yang <yangx.jy@cn.fujitsu.com>
Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
glibc 2.31 calls clock_nanosleep when its nanosleep function is used. So
the restart_syscall fails after that. In order to deal with it, we trace
clock_nanosleep and nanosleep. Then we check for either.
This works just fine on systems with both glibc 2.30 and glibc 2.31,
whereas it failed before on a system with glibc 2.31.
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
While running seccomp_bpf, kill_after_ptrace() gets stuck if we run it
via /usr/bin/timeout (that is the default), until the timeout expires.
This is because /usr/bin/timeout is preventing to properly deliver
signals to ptrace'd children (SIGSYS in this case).
This problem can be easily reproduced by running:
$ sudo make TARGETS=seccomp kselftest
...
# [ RUN ] TRACE_syscall.skip_a#
not ok 1 selftests: seccomp: seccomp_bpf # TIMEOUT
The test is hanging at this point until the timeout expires and then it
reports the timeout error.
Prevent this problem by passing --foreground to /usr/bin/timeout,
allowing to properly deliver signals to children processes.
Signed-off-by: Andrea Righi <andrea.righi@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
There a few identical spelling mistakes, fix these.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
To pick up the changes in these csets:
295bcca849 ("linux/bits.h: add compile time sanity check of GENMASK inputs")
3945ff37d2 ("linux/bits.h: Extract common header for vDSO")
To address this tools/perf build warning:
Warning: Kernel ABI header at 'tools/include/linux/bits.h' differs from latest version at 'include/linux/bits.h'
diff -u tools/include/linux/bits.h include/linux/bits.h
This clashes with usage of userspace's static_assert(), that, at least
on glibc, is guarded by a ifnded/endif pair, do the same to our copy of
build_bug.h and avoid that diff in check_headers.sh so that we continue
checking for drifts with the kernel sources master copy.
This will all be tested with the set of build containers that includes
uCLibc, musl libc, lots of glibc versions in lots of distros and cross
build environments.
The tools/objtool, tools/bpf, etc were tested as well.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Will be needed when syncing the linux/bits.h header, in the next cset.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the changes from:
d3b1b776ee ("x86/entry/64: Remove ptregs qualifier from syscall table")
cab56d3484 ("x86/entry: Remove ABI prefixes from functions in syscall tables")
27dd84fafc ("x86/entry/64: Use syscall wrappers for x32_rt_sigreturn")
Addressing this tools/perf build warning:
Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
That didn't result in any tooling changes, as what is extracted are just
the first two columns, and these patches touched only the third.
$ cp /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c /tmp
$ cp arch/x86/entry/syscalls/syscall_64.tbl tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
$ make -C tools/perf O=/tmp/build/perf install-bin
make: Entering directory '/home/acme/git/perf/tools/perf'
BUILD: Doing 'make -j12' parallel build
DESCEND plugins
CC /tmp/build/perf/util/syscalltbl.o
INSTALL trace_plugins
LD /tmp/build/perf/util/perf-in.o
LD /tmp/build/perf/perf-in.o
LINK /tmp/build/perf/perf
$ diff -u /tmp/build/perf/arch/x86/include/generated/asm/syscalls_64.c /tmp/syscalls_64.c
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick the change in:
88be76cdaf ("drm/i915: Allow userspace to specify ringsize on construction")
That don't result in any changes in tooling, just silences this perf
build warning:
Warning: Kernel ABI header at 'tools/include/uapi/drm/i915_drm.h' differs from latest version at 'include/uapi/drm/i915_drm.h'
diff -u tools/include/uapi/drm/i915_drm.h include/uapi/drm/i915_drm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Picking the changes from:
455e00f141 ("drm: Add getfb2 ioctl")
Silencing these perf build warnings:
Warning: Kernel ABI header at 'tools/include/uapi/drm/drm.h' differs from latest version at 'include/uapi/drm/drm.h'
diff -u tools/include/uapi/drm/drm.h include/uapi/drm/drm.h
Now 'perf trace' and other code that might use the
tools/perf/trace/beauty autogenerated tables will be able to translate
this new ioctl code into a string:
$ tools/perf/trace/beauty/drm_ioctl.sh > before
$ cp include/uapi/drm/drm.h tools/include/uapi/drm/drm.h
$ tools/perf/trace/beauty/drm_ioctl.sh > after
$ diff -u before after
--- before 2020-04-14 09:28:45.461821077 -0300
+++ after 2020-04-14 09:28:53.594782685 -0300
@@ -107,6 +107,7 @@
[0xCB] = "SYNCOBJ_QUERY",
[0xCC] = "SYNCOBJ_TRANSFER",
[0xCD] = "SYNCOBJ_TIMELINE_SIGNAL",
+ [0xCE] = "MODE_GETFB2",
[DRM_COMMAND_BASE + 0x00] = "I915_INIT",
[DRM_COMMAND_BASE + 0x01] = "I915_FLUSH",
[DRM_COMMAND_BASE + 0x02] = "I915_FLIP",
$
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Stone <daniels@collabora.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lyude Paul <lyude@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the changes from:
9a5788c615 ("KVM: PPC: Book3S HV: Add a capability for enabling secure guests")
3c9bd4006b ("KVM: x86: enable dirty log gradually in small chunks")
13da9ae1cd ("KVM: s390: protvirt: introduce and enable KVM_CAP_S390_PROTECTED")
e0d2773d48 ("KVM: s390: protvirt: UV calls in support of diag308 0, 1")
19e1227768 ("KVM: S390: protvirt: Introduce instruction data area bounce buffer")
29b40f105e ("KVM: s390: protvirt: Add initial vm and cpu lifecycle handling")
So far we're ignoring those arch specific ioctls, we need to revisit
this at some time to have arch specific tables, etc:
$ grep S390 tools/perf/trace/beauty/kvm_ioctl.sh
egrep -v " ((ARM|PPC|S390)_|[GS]ET_(DEBUGREGS|PIT2|XSAVE|TSC_KHZ)|CREATE_SPAPR_TCE_64)" | \
$
This addresses these tools/perf build warnings:
Warning: Kernel ABI header at 'tools/arch/arm/include/uapi/asm/kvm.h' differs from latest version at 'arch/arm/include/uapi/asm/kvm.h'
diff -u tools/arch/arm/include/uapi/asm/kvm.h arch/arm/include/uapi/asm/kvm.h
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Jay Zhou <jianjay.zhou@huawei.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
