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As a convenience, equivalent to pressing Enter in a line with a kernel
symbol and then selecting "Zoom" into the kernel DSO.
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We'll use it to provide a top level hotkey to zoom into the kernel dso
directly.
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Taking into account the current status of the callchain, i.e. if folded,
show "Expand", otherwise "Collapse", also show the name of the entry
that will be affected and mention the hotkeys for expanding/collapsing
all callchains below the main entry, the one that appears with/without
callchains.
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Since previously pressing ENTER toggled expansion/collapse of callchain
entries and now brings up the same menu used when callchains are not
present, add an entry so that users can quickly figure out the change in
behaviour.
Its worth mentioning that we also always had 'e'/'c' to expand/collapse
all entries in a hist entry and 'E'/'C' for all hist entries.
Suggested-by: Linus Torvalds <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When callchains are present the ENTER key switches from bringing up the
menu that offers Annotation, Zoom by DSO, etc to expanding/collapsing
one callchain level, causing confusion, fix it by making it consistently
bring up the menu and use '+' to expand/collapse one callchain level.
Next patch will also add an entry to the menu to allow
expanding/collapsing, so that people used to ENTER expanding one
callchain level can quickly find it and use it instead.
Reported-by: Linus Torvalds <[email protected]>
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We need to set actions->ms.map since 599a2f38a989 ("perf hists browser:
Check sort keys before hot key actions"), as in that patch we bail out
if map is NULL.
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Namhyung Kim <[email protected]>
Fixes: 599a2f38a989 ("perf hists browser: Check sort keys before hot key actions")
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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GCC9 introduced string hardening mechanisms, which exhibits the error
during fs api compilation:
error: '__builtin_strncpy' specified bound 4096 equals destination size
[-Werror=stringop-truncation]
This comes when the length of copy passed to strncpy is is equal to
destination size, which could potentially lead to buffer overflow.
There is a need to mitigate this potential issue by limiting the size of
destination by 1 and explicitly terminate the destination with NULL.
Signed-off-by: Andrey Zhizhikin <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexei Starovoitov <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: Daniel Borkmann <[email protected]>
Cc: Kefeng Wang <[email protected]>
Cc: Martin KaFai Lau <[email protected]>
Cc: Petr Mladek <[email protected]>
Cc: Sergey Senozhatsky <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Yonghong Song <[email protected]>
Cc: [email protected]
Cc: [email protected]
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Change the man page generation to asciidoc, because it's easier to use
and has been more commonly used in related projects. Remove the current
rst pages.
Add 3 man pages to have a base for more additions:
libperf.3 - overall description
libperf-counting.7 - counting basics explained on simple example
libperf-sampling.7 - sampling basics explained on simple example
The plan is to add more man pages to cover the basic API.
The build generates html and man pages:
$ cd tools/lib/perf/Documentation
$ make
ASCIIDOC libperf.xml
XMLTO libperf.3
ASCIIDOC libperf-counting.xml
XMLTO libperf-counting.7
ASCIIDOC libperf-sampling.xml
XMLTO libperf-sampling.7
ASCIIDOC libperf.html
ASCIIDOC libperf-counting.html
ASCIIDOC libperf-sampling.html
Add the following install targets:
install-man - man pages
install-html - html version of man pages
install-examples - examples mentioned in the man pages
Signed-off-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Move libperf from its current location under tools/perf to a separate
directory under tools/lib/.
Also change various paths (mainly includes) to reflect the libperf move
to a separate directory and add a new directory under MANIFEST.
Signed-off-by: Jiri Olsa <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Michael Petlan <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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To help understand failures.
Cc: Adrian Hunter <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lkml.kernel.org/n/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Allow user to limit output to one or more CPUs. Really helpful on
systems with a large number of cpus.
Committer testing:
# perf sched record -a sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 1.765 MB perf.data (1412 samples) ]
[root@quaco ~]# perf sched timehist | head
Samples do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
66307.802686 [0000] perf[13086] 0.000 0.000 0.000
66307.802700 [0000] migration/0[12] 0.000 0.001 0.014
66307.802766 [0001] perf[13086] 0.000 0.000 0.000
66307.802774 [0001] migration/1[15] 0.000 0.001 0.007
66307.802841 [0002] perf[13086] 0.000 0.000 0.000
66307.802849 [0002] migration/2[20] 0.000 0.001 0.008
66307.802913 [0003] perf[13086] 0.000 0.000 0.000
#
# perf sched timehist --cpu 2 | head
Samples do not have callchains.
time cpu task name wait time sch delay run time
[tid/pid] (msec) (msec) (msec)
--------------- ------ ------------------------------ --------- --------- ---------
66307.802841 [0002] perf[13086] 0.000 0.000 0.000
66307.802849 [0002] migration/2[20] 0.000 0.001 0.008
66307.964485 [0002] <idle> 0.000 0.000 161.635
66307.964811 [0002] CPU 0/KVM[3589/3561] 0.000 0.056 0.325
66307.965477 [0002] <idle> 0.325 0.000 0.666
66307.965553 [0002] CPU 0/KVM[3589/3561] 0.666 0.024 0.076
66307.966456 [0002] <idle> 0.076 0.000 0.903
#
Signed-off-by: David Ahern <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Use struct mmap_cpu_mask type for the tool's thread and mmap data
buffers to overcome current 1024 CPUs mask size limitation of cpu_set_t
type.
Currently glibc's cpu_set_t type has an internal mask size limit of 1024
CPUs.
Moving to the 'struct mmap_cpu_mask' type allows overcoming that limit.
The tools bitmap API is used to manipulate objects of 'struct mmap_cpu_mask'
type.
Committer notes:
To print the 'nbits' struct member we must use %zd, since it is a
size_t, this fixes the build in some toolchains/arches.
Reported-by: Andi Kleen <[email protected]>
Signed-off-by: Alexey Budankov <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Declare a dedicated struct map_cpu_mask type for cpu masks of arbitrary
length.
The mask is available thru bits pointer and the mask length is kept in
nbits field. MMAP_CPU_MASK_BYTES() macro returns mask storage size in
bytes.
The mmap_cpu_mask__scnprintf() function can be used to log text
representation of the mask.
Committer notes:
To print the 'nbits' struct member we must use %zd, since it is a
size_t, this fixes the build in some toolchains/arches.
Signed-off-by: Alexey Budankov <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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Extend tools bitmap API with bitmap_equal() implementation.
The implementation has been derived from the kernel.
Extend tools bitmap API with bitmap_free() implementation for symmetry
with bitmap_alloc() function.
Signed-off-by: Alexey Budankov <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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ioremap has provided non-cached semantics by default since the Linux 2.6
days, so remove the additional ioremap_nocache interface.
Signed-off-by: Christoph Hellwig <[email protected]>
Acked-by: Arnd Bergmann <[email protected]>
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The loopback feature is only supported on a few drivers like broadcom,
mellanox, etc. The default veth driver has not supported it yet. To avoid
returning failed and making the runner feel confused, let's just skip
the test on drivers that not support loopback.
Fixes: ad11340994d5 ("selftests: Add loopback test")
Signed-off-by: Hangbin Liu <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp fixes from Kees Cook:
"Fixes for seccomp_notify_ioctl uapi sanity from Sargun Dhillon.
The bulk of this is fixing the surrounding samples and selftests so
that seccomp can correctly validate the seccomp_notify_ioctl buffer as
being initially zeroed.
Summary:
- Fix samples and selftests to zero passed-in buffer
- Enforce zeroed buffer checking
- Verify buffer sanity check in selftest"
* tag 'seccomp-v5.5-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Catch garbage on SECCOMP_IOCTL_NOTIF_RECV
seccomp: Check that seccomp_notif is zeroed out by the user
selftests/seccomp: Zero out seccomp_notif
samples/seccomp: Zero out members based on seccomp_notif_sizes
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This adds logic to the user_notification_basic test to set a member
of struct seccomp_notif to an invalid value to ensure that the kernel
returns EINVAL if any of the struct seccomp_notif members are set to
invalid values.
Signed-off-by: Sargun Dhillon <[email protected]>
Suggested-by: Christian Brauner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
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The seccomp_notif structure should be zeroed out prior to calling the
SECCOMP_IOCTL_NOTIF_RECV ioctl. Previously, the kernel did not check
whether these structures were zeroed out or not, so these worked.
This patch zeroes out the seccomp_notif data structure prior to calling
the ioctl.
Signed-off-by: Sargun Dhillon <[email protected]>
Reviewed-by: Tycho Andersen <[email protected]>
Reviewed-by: Christian Brauner <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Fixes: 6a21cc50f0c7 ("seccomp: add a return code to trap to userspace")
Cc: [email protected]
Signed-off-by: Kees Cook <[email protected]>
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Pull networking fixes from David Miller:
1) Fix big endian overflow in nf_flow_table, from Arnd Bergmann.
2) Fix port selection on big endian in nft_tproxy, from Phil Sutter.
3) Fix precision tracking for unbound scalars in bpf verifier, from
Daniel Borkmann.
4) Fix integer overflow in socket rcvbuf check in UDP, from Antonio
Messina.
5) Do not perform a neigh confirmation during a pmtu update over a
tunnel, from Hangbin Liu.
6) Fix DMA mapping leak in dpaa_eth driver, from Madalin Bucur.
7) Various PTP fixes for sja1105 dsa driver, from Vladimir Oltean.
8) Add missing to dummy definition of of_mdiobus_child_is_phy(), from
Geert Uytterhoeven
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (54 commits)
hsr: fix slab-out-of-bounds Read in hsr_debugfs_rename()
net/sched: add delete_empty() to filters and use it in cls_flower
tcp: Fix highest_sack and highest_sack_seq
ptp: fix the race between the release of ptp_clock and cdev
net: dsa: sja1105: Reconcile the meaning of TPID and TPID2 for E/T and P/Q/R/S
Documentation: net: dsa: sja1105: Remove text about taprio base-time limitation
net: dsa: sja1105: Remove restriction of zero base-time for taprio offload
net: dsa: sja1105: Really make the PTP command read-write
net: dsa: sja1105: Take PTP egress timestamp by port, not mgmt slot
cxgb4/cxgb4vf: fix flow control display for auto negotiation
mlxsw: spectrum: Use dedicated policer for VRRP packets
mlxsw: spectrum_router: Skip loopback RIFs during MAC validation
net: stmmac: dwmac-meson8b: Fix the RGMII TX delay on Meson8b/8m2 SoCs
net/sched: act_mirred: Pull mac prior redir to non mac_header_xmit device
net_sched: sch_fq: properly set sk->sk_pacing_status
bnx2x: Fix accounting of vlan resources among the PFs
bnx2x: Use appropriate define for vlan credit
of: mdio: Add missing inline to of_mdiobus_child_is_phy() dummy
net: phy: aquantia: add suspend / resume ops for AQR105
dpaa_eth: fix DMA mapping leak
...
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Daniel Borkmann says:
====================
pull-request: bpf 2019-12-23
The following pull-request contains BPF updates for your *net* tree.
We've added 2 non-merge commits during the last 1 day(s) which contain
a total of 4 files changed, 34 insertions(+), 31 deletions(-).
The main changes are:
1) Fix libbpf build when building on a read-only filesystem with O=dir
option, from Namhyung Kim.
2) Fix a precision tracking bug for unknown scalars, from Daniel Borkmann.
====================
Signed-off-by: David S. Miller <[email protected]>
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Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Fix endianness issue in flowtable TCP flags dissector,
from Arnd Bergmann.
2) Extend flowtable test script with dnat rules, from Florian Westphal.
3) Reject padding in ebtables user entries and validate computed user
offset, reported by syzbot, from Florian Westphal.
4) Fix endianness in nft_tproxy, from Phil Sutter.
====================
Signed-off-by: David S. Miller <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent
Pull perf/urgent fixes from Arnaldo Carvalho de Melo:
perf report/top:
Arnaldo Carvalho de Melo:
- Fix popup menu for entries in main kernel maps other than the main one,
e.g. ".init.text", where a non-initialized pointer was causing segfaults.
Jin Yao:
- Fix incorrectly added dimensions when switching perf.data file to another
via the popup menu.
libtraceevent:
Hewenliang:
- Fix memory leakage in filter_event().
perf hists:
Yuya Fujita:
- Fix variable name's inconsistency in hists__for_each() macro.
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
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The rseq.h UAPI now documents that the rseq_cs field must be cleared
before reclaiming memory that contains the targeted struct rseq_cs, but
also that the rseq_cs field must be cleared before reclaiming memory of
the code pointed to by the rseq_cs start_ip and post_commit_offset
fields.
While we can expect that use of dlclose(3) will typically unmap
both struct rseq_cs and its associated code at once, nothing would
theoretically prevent a JIT from reclaiming the code without
reclaiming the struct rseq_cs, which would erroneously allow the
kernel to consider new code which is not a rseq critical section
as a rseq critical section following a code reclaim.
Suggested-by: Florian Weimer <[email protected]>
Signed-off-by: Mathieu Desnoyers <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Florian Weimer <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra (Intel) <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: "H . Peter Anvin" <[email protected]>
Cc: Paul Turner <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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glibc 2.30 introduces gettid() in public headers, which clashes with
the internal static definition within rseq selftests.
Rename gettid() to rseq_gettid() to eliminate this symbol name clash.
Reported-by: Tommi T. Rantala <[email protected]>
Signed-off-by: Mathieu Desnoyers <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Tommi T. Rantala <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra (Intel) <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: "H . Peter Anvin" <[email protected]>
Cc: Paul Turner <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Cc: <[email protected]> # v4.18+
Signed-off-by: Shuah Khan <[email protected]>
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As the rseq selftests can run for a long period of time, disable the
timeout that the general selftests have.
Signed-off-by: Mathieu Desnoyers <[email protected]>
Cc: Shuah Khan <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra (Intel) <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: "H . Peter Anvin" <[email protected]>
Cc: Paul Turner <[email protected]>
Cc: Dmitry Vyukov <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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This commit adds kunit tool test for the '--build_dir' option.
Signed-off-by: SeongJae Park <[email protected]>
Reviewed-by: Brendan Higgins <[email protected]>
Tested-by: Brendan Higgins <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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This commit renames 'kunitconfig' to '.kunitconfig' so that it can be
automatically ignored by git and do not disturb people who want to type
'kernel/' by pressing only the 'k' and then 'tab' key.
Signed-off-by: SeongJae Park <[email protected]>
Reviewed-by: Brendan Higgins <[email protected]>
Tested-by: Brendan Higgins <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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'kunit' writes the 'test.log' under the kernel source directory even
though a 'build_dir' option is given. As users who use the option might
expect the outputs to be placed under the specified directory, this
commit modifies the logic to write the log file under the 'build_dir'.
Signed-off-by: SeongJae Park <[email protected]>
Reviewed-by: Brendan Higgins <[email protected]>
Tested-by: Brendan Higgins <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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If both '--build_dir' and '--defconfig' are given, the handling of
'--defconfig' ignores '--build_dir' option. This commit modifies the
behavior to respect '--build_dir' option.
Reported-by: Brendan Higgins <[email protected]>
Suggested-by: Brendan Higgins <[email protected]>
Signed-off-by: SeongJae Park <[email protected]>
Reviewed-by: Brendan Higgins <[email protected]>
Tested-by: Brendan Higgins <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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'--defconfig' option is handled by the 'main() of the 'kunit.py' but
again handled in following 'run_tests()'. This commit removes this
duplicated handling of the option in the 'run_tests()'.
Signed-off-by: SeongJae Park <[email protected]>
Reviewed-by: Brendan Higgins <[email protected]>
Tested-by: Brendan Higgins <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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livepatch test configures the system and debug environment to run
tests. Some of these actions fail without root access and test
dumps several permission denied messages before it exits.
Fix test-state.sh to call setup_config instead of set_dynamic_debug
as suggested by Petr Mladek <[email protected]>
Fix it to check root uid and exit with skip code instead.
Signed-off-by: Shuah Khan <[email protected]>
Acked-by: Joe Lawrence <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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firmware attempts to load test modules that require root access
and fail. Fix it to check for root uid and exit with skip code
instead.
Before this fix:
selftests: firmware: fw_run_tests.sh
modprobe: ERROR: could not insert 'test_firmware': Operation not permitted
You must have the following enabled in your kernel:
CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
not ok 1 selftests: firmware: fw_run_tests.sh # SKIP
With this fix:
selftests: firmware: fw_run_tests.sh
skip all tests: must be run as root
not ok 1 selftests: firmware: fw_run_tests.sh # SKIP
Signed-off-by: Shuah Khan <[email protected]>
Reviwed-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>
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epoll build fails to find pthread lib. Fix Makefile to use LDLIBS
instead of LDFLAGS. LDLIBS is the right flag to use here with -l
option when invoking ld.
gcc -I../../../../../usr/include/ -lpthread epoll_wakeup_test.c -o .../tools/testing/selftests/filesystems/epoll/epoll_wakeup_test
/usr/bin/ld: /tmp/ccaZvJUl.o: in function `kill_timeout':
epoll_wakeup_test.c:(.text+0x4dd): undefined reference to `pthread_kill'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x4f2): undefined reference to `pthread_kill'
/usr/bin/ld: /tmp/ccaZvJUl.o: in function `epoll9':
epoll_wakeup_test.c:(.text+0x6382): undefined reference to `pthread_create'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x64d2): undefined reference to `pthread_create'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6626): undefined reference to `pthread_join'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x684c): undefined reference to `pthread_tryjoin_np'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6864): undefined reference to `pthread_kill'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6878): undefined reference to `pthread_join'
Signed-off-by: Shuah Khan <[email protected]>
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I got the following error when I tried to build perf on a read-only
filesystem with O=dir option.
$ cd /some/where/ro/linux/tools/perf
$ make O=$HOME/build/perf
...
CC /home/namhyung/build/perf/lib.o
/bin/sh: bpf_helper_defs.h: Read-only file system
make[3]: *** [Makefile:184: bpf_helper_defs.h] Error 1
make[2]: *** [Makefile.perf:778: /home/namhyung/build/perf/libbpf.a] Error 2
make[2]: *** Waiting for unfinished jobs....
LD /home/namhyung/build/perf/libperf-in.o
AR /home/namhyung/build/perf/libperf.a
PERF_VERSION = 5.4.0
make[1]: *** [Makefile.perf:225: sub-make] Error 2
make: *** [Makefile:70: all] Error 2
It was becaused bpf_helper_defs.h was generated in current directory.
Move it to OUTPUT directory.
Signed-off-by: Namhyung Kim <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Tested-by: Andrii Nakryiko <[email protected]>
Acked-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
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Pull networking fixes from David Miller:
1) Several nf_flow_table_offload fixes from Pablo Neira Ayuso,
including adding a missing ipv6 match description.
2) Several heap overflow fixes in mwifiex from qize wang and Ganapathi
Bhat.
3) Fix uninit value in bond_neigh_init(), from Eric Dumazet.
4) Fix non-ACPI probing of nxp-nci, from Stephan Gerhold.
5) Fix use after free in tipc_disc_rcv(), from Tuong Lien.
6) Enforce limit of 33 tail calls in mips and riscv JIT, from Paul
Chaignon.
7) Multicast MAC limit test is off by one in qede, from Manish Chopra.
8) Fix established socket lookup race when socket goes from
TCP_ESTABLISHED to TCP_LISTEN, because there lacks an intervening
RCU grace period. From Eric Dumazet.
9) Don't send empty SKBs from tcp_write_xmit(), also from Eric Dumazet.
10) Fix active backup transition after link failure in bonding, from
Mahesh Bandewar.
11) Avoid zero sized hash table in gtp driver, from Taehee Yoo.
12) Fix wrong interface passed to ->mac_link_up(), from Russell King.
13) Fix DSA egress flooding settings in b53, from Florian Fainelli.
14) Memory leak in gmac_setup_txqs(), from Navid Emamdoost.
15) Fix double free in dpaa2-ptp code, from Ioana Ciornei.
16) Reject invalid MTU values in stmmac, from Jose Abreu.
17) Fix refcount leak in error path of u32 classifier, from Davide
Caratti.
18) Fix regression causing iwlwifi firmware crashes on boot, from Anders
Kaseorg.
19) Fix inverted return value logic in llc2 code, from Chan Shu Tak.
20) Disable hardware GRO when XDP is attached to qede, frm Manish
Chopra.
21) Since we encode state in the low pointer bits, dst metrics must be
at least 4 byte aligned, which is not necessarily true on m68k. Add
annotations to fix this, from Geert Uytterhoeven.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (160 commits)
sfc: Include XDP packet headroom in buffer step size.
sfc: fix channel allocation with brute force
net: dst: Force 4-byte alignment of dst_metrics
selftests: pmtu: fix init mtu value in description
hv_netvsc: Fix unwanted rx_table reset
net: phy: ensure that phy IDs are correctly typed
mod_devicetable: fix PHY module format
qede: Disable hardware gro when xdp prog is installed
net: ena: fix issues in setting interrupt moderation params in ethtool
net: ena: fix default tx interrupt moderation interval
net/smc: unregister ib devices in reboot_event
net: stmmac: platform: Fix MDIO init for platforms without PHY
llc2: Fix return statement of llc_stat_ev_rx_null_dsap_xid_c (and _test_c)
net: hisilicon: Fix a BUG trigered by wrong bytes_compl
net: dsa: ksz: use common define for tag len
s390/qeth: don't return -ENOTSUPP to userspace
s390/qeth: fix promiscuous mode after reset
s390/qeth: handle error due to unsupported transport mode
cxgb4: fix refcount init for TC-MQPRIO offload
tc-testing: initial tdc selftests for cls_u32
...
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git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Dan Williams:
"A minor regression fix.
The libnvdimm unit tests were expecting to mock calls to
ioremap_nocache() which disappeared in v5.5-rc1. This fix has appeared
in -next and collided with some cleanups that Christoph has planned
for v5.6, but he will fix up his branch once this goes in.
Summary:
- Restore the operation of the libnvdimm unit tests after the removal
of ioremap_nocache()"
* tag 'libnvdimm-fix-5.5-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
tools/testing/nvdimm: Fix mock support for ioremap
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There is no a_r3, a_r4 in the testing topology.
It should be b_r1, b_r2. Also b_r1 mtu is 1400 and b_r2 mtu is 1500.
Fixes: e44e428f59e4 ("selftests: pmtu: add basic IPv4 and IPv6 PMTU tests")
Signed-off-by: Hangbin Liu <[email protected]>
Acked-by: Stefano Brivio <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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Variable names are inconsistent in hists__for_each macro().
Due to this inconsistency, the macro replaces its second argument with
"fmt" regardless of its original name.
So far it works because only "fmt" is passed to the second argument.
However, this behavior is not expected and should be fixed.
Fixes: f0786af536bb ("perf hists: Introduce hists__for_each_format macro")
Fixes: aa6f50af822a ("perf hists: Introduce hists__for_each_sort_list macro")
Signed-off-by: Yuya Fujita <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/OSAPR01MB1588E1C47AC22043175DE1B2E8520@OSAPR01MB1588.jpnprd01.prod.outlook.com
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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When a map is create to represent the main kernel area (vmlinux) with
map__new2() we allocate an extra area to store a pointer to the 'struct
maps' for the kernel maps, so that we can access that struct when
loading ELF files or kallsyms, as we will need to split it in multiple
maps, one per kernel module or ELF section (such as ".init.text").
So when map->dso->kernel is non-zero, it is expected that
map__kmap(map)->kmaps to be set to the tree of kernel maps (modules,
chunks of the main kernel, bpf progs put in place via
PERF_RECORD_KSYMBOL, the main kernel).
This was not the case when we were splitting the main kernel into chunks
for its ELF sections, which ended up making 'perf report --children'
processing a perf.data file with callchains to trip on
__map__is_kernel(), when we press ENTER to see the popup menu for main
histogram entries that starts at a symbol in the ".init.text" ELF
section, e.g.:
- 8.83% 0.00% swapper [kernel.vmlinux].init.text [k] start_kernel
start_kernel
cpu_startup_entry
do_idle
cpuidle_enter
cpuidle_enter_state
intel_idle
Fix it.
Reviewed-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Namhyung Kim <[email protected]>
Link: https://lore.kernel.org/lkml/[email protected]/
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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We observed an issue that was some extra columns displayed after switching
perf data file in browser. The steps to reproduce:
1. perf record -a -e cycles,instructions -- sleep 3
2. perf report --group
3. In browser, we use hotkey 's' to switch to another perf.data
4. Now in browser, the extra columns 'Self' and 'Children' are displayed.
The issue is setup_sorting() executed again after repeat path, so dimensions
are added again.
This patch checks the last key returned from __cmd_report(). If it's
K_SWITCH_INPUT_DATA, skips the setup_sorting().
Fixes: ad0de0971b7f ("perf report: Enable the runtime switching of perf data file")
Signed-off-by: Jin Yao <[email protected]>
Tested-by: Arnaldo Carvalho de Melo <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Feng Tang <[email protected]>
Cc: Jin Yao <[email protected]>
Cc: Kan Liang <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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It is necessary to call free_arg(arg) when add_filter_type() returns NULL
in filter_event().
Signed-off-by: Hewenliang <[email protected]>
Reviewed-by: Steven Rostedt (VMware) <[email protected]>
Cc: Feilong Lin <[email protected]>
Cc: Tzvetomir Stoyanov <[email protected]>
Link: http://lore.kernel.org/lkml/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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- move test "e9a3 - Add u32 with source match" to u32.json, and change the
match pattern to catch all hnodes
- add testcases for relevant error paths of cls_u32 module
Signed-off-by: Davide Caratti <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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NAT test currently covers snat (masquerade) only.
Also add a dnat rule and then check that a connecting to the
to-be-dnated address will work.
Signed-off-by: Florian Westphal <[email protected]>
Signed-off-by: Pablo Neira Ayuso <[email protected]>
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Daniel Borkmann says:
====================
pull-request: bpf 2019-12-19
The following pull-request contains BPF updates for your *net* tree.
We've added 10 non-merge commits during the last 8 day(s) which contain
a total of 21 files changed, 269 insertions(+), 108 deletions(-).
The main changes are:
1) Fix lack of synchronization between xsk wakeup and destroying resources
used by xsk wakeup, from Maxim Mikityanskiy.
2) Fix pruning with tail call patching, untrack programs in case of verifier
error and fix a cgroup local storage tracking bug, from Daniel Borkmann.
3) Fix clearing skb->tstamp in bpf_redirect() when going from ingress to
egress which otherwise cause issues e.g. on fq qdisc, from Lorenz Bauer.
4) Fix compile warning of unused proc_dointvec_minmax_bpf_restricted() when
only cBPF is present, from Alexander Lobakin.
====================
Signed-off-by: David S. Miller <[email protected]>
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Expand dummy prog generation such that we can easily check on return
codes and add few more test cases to make sure we keep on tracking
pruning behavior.
# ./test_verifier
[...]
#1066/p XDP pkt read, pkt_data <= pkt_meta', bad access 1 OK
#1067/p XDP pkt read, pkt_data <= pkt_meta', bad access 2 OK
Summary: 1580 PASSED, 0 SKIPPED, 0 FAILED
Also verified that JIT dump of added test cases looks good.
Signed-off-by: Daniel Borkmann <[email protected]>
Signed-off-by: Alexei Starovoitov <[email protected]>
Link: https://lore.kernel.org/bpf/df7200b6021444fd369376d227de917357285b65.1576789878.git.daniel@iogearbox.net
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Pull tpm fixes from Jarkko Sakkinen:
"Bunch of fixes for rc3"
* tag 'tpmdd-next-20191219' of git://git.infradead.org/users/jjs/linux-tpmdd:
tpm/tpm_ftpm_tee: add shutdown call back
tpm: selftest: cleanup after unseal with wrong auth/policy test
tpm: selftest: add test covering async mode
tpm: fix invalid locking in NONBLOCKING mode
security: keys: trusted: fix lost handle flush
tpm_tis: reserve chip for duration of tpm_tis_core_init
KEYS: asymmetric: return ENOMEM if akcipher_request_alloc() fails
KEYS: remove CONFIG_KEYS_COMPAT
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If we compile tools/acpi target in the top source directory, we'd get a
compilation error showing as bellow:
# make tools/acpi
DESCEND power/acpi
DESCEND tools/acpidbg
CC tools/acpidbg/acpidbg.o
Assembler messages:
Fatal error: can't create /home/lzy/kernel-upstream/power/acpi/\
tools/acpidbg/acpidbg.o: No such file or directory
../../Makefile.rules:26: recipe for target '/home/lzy/kernel-upstream/\
power/acpi/tools/acpidbg/acpidbg.o' failed
make[3]: *** [/home/lzy/kernel-upstream//power/acpi/tools/acpidbg/\
acpidbg.o] Error 1
Makefile:19: recipe for target 'acpidbg' failed
make[2]: *** [acpidbg] Error 2
Makefile:54: recipe for target 'acpi' failed
make[1]: *** [acpi] Error 2
Makefile:1607: recipe for target 'tools/acpi' failed
make: *** [tools/acpi] Error 2
Fixes: d5a4b1a540b8 ("tools/power/acpi: Remove direct kernel source include reference")
Signed-off-by: Zhengyuan Liu <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf tooling fixes from Ingo Molnar:
"These are all perf tooling changes: most of them are fixes.
Note that the large CPU count related fixes go beyond regression
fixes, but the IPI-flood symptoms are severe enough that I think
justifies their inclusion"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (38 commits)
perf vendor events s390: Remove name from L1D_RO_EXCL_WRITES description
perf vendor events s390: Fix counter long description for DTLB1_GPAGE_WRITES
libtraceevent: Allow custom libdir path
perf header: Fix false warning when there are no duplicate cache entries
perf metricgroup: Fix printing event names of metric group with multiple events
perf/x86/pmu-events: Fix Kernel_Utilization metric
perf top: Do not bail out when perf_env__read_cpuid() returns ENOSYS
perf arch: Make the default get_cpuid() return compatible error
tools headers kvm: Sync linux/kvm.h with the kernel sources
tools headers UAPI: Update tools's copy of drm.h headers
tools headers UAPI: Sync drm/i915_drm.h with the kernel sources
perf inject: Fix processing of ID index for injected instruction tracing
perf report: Bail out --mem-mode if mem info is not available
perf report: Make -F more strict like -s
perf report/top TUI: Replace pr_err() with ui__error()
libtraceevent: Copy pkg-config file to output folder when using O=
libtraceevent: Fix lib installation with O=
perf kvm: Clarify the 'perf kvm' -i and -o command line options
tools arch x86: Sync asm/cpufeatures.h with the kernel sources
perf beauty: Add CLEAR_SIGHAND support for clone's flags arg
...
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Unseal with wrong auth or wrong policy test affects DA lockout
and eventually causes the tests to fail with:
"ProtocolError: TPM_RC_LOCKOUT: rc=0x00000921"
when the tests run multiple times.
Send tpm clear command after the test to reset the DA counters.
Signed-off-by: Tadeusz Struk <[email protected]>
Reviewed-by: Jarkko Sakkinen <[email protected]>
Signed-off-by: Jarkko Sakkinen <[email protected]>
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