Pull iommufd fixes from Jason Gunthorpe:
"Some changes to the userspace selftest framework cause the iommufd
tests to start failing. This turned out to be bugs in the iommufd side
that were just getting uncovered.
- Deal with MAP_HUGETLB mmaping more than requested even when in
MAP_FIXED mode
- Fixup missing error flow cleanup in the test
- Check that the memory allocations suceeded
- Suppress some bogus gcc 'may be used uninitialized' warnings"
* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
iommufd/selftest: Fix build warnings due to uninitialized mfd
iommufd/selftest: Add asserts testing global mfd
iommufd/selftest: Add missing close(mfd) in memfd_mmap()
iommufd/selftest: Fix iommufd_dirty_tracking with large hugepage sizes
Add tests for different scenarios with bpf_cgroup_read_xattr:
1. Read cgroup xattr from bpf_cgroup_from_id;
2. Read cgroup xattr from bpf_cgroup_ancestor;
3. Read cgroup xattr from css_iter;
4. Use bpf_cgroup_read_xattr in LSM hook security_socket_connect.
5. Use bpf_cgroup_read_xattr in cgroup program.
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/20250623063854.1896364-5-song@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Add a set of tests for subcmd routines. Currently it fails the last one
since there's a bug. It'll be fixed by the next commit.
$ perf test subcmd
69: libsubcmd help tests :
69.1: Load subcmd names : Ok
69.2: Uniquify subcmd names : Ok
69.3: Exclude duplicate subcmd names : FAILED!
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250701201027.1171561-2-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Currently perf test checks the given string with descriptions for both
test suites and cases (subtests). But sometimes it's confusing since
the subtests don't contain the important keyword.
I think it's better to check the suite level and run the whole suite
together if it matches description in the suite.
Before:
$ perf test hwmon
(no output)
After:
$ perf test hwmon
10: Hwmon PMU :
10.1: Basic parsing test : Ok
10.2: Parsing without PMU name : Ok
10.3: Parsing with PMU name : Ok
And keep the existing behavior when it only matches test description only.
$ perf test "Equal cpu map"
39.5: Equal cpu map : Ok
Reviewed-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20250701201027.1171561-1-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Functions definitions without any argument list produce a warning with
-Wstrict-prototypes:
vdso_test_correctness.c:111:13: warning: function declaration isn’t a prototype [-Wstrict-prototypes]
111 | static void fill_function_pointers()
| ^~~~~~~~~~~~~~~~~~~~~~
Explicitly use an empty argument list.
Now that all selftests a free of this warning, enable it in the Makefile.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-7-e62e37a6bcf5@linutronix.de
According to kselftest.h ksft_exit_skip() is not meant to be called when
a plan has already been printed.
Use the recommended function ksft_test_result_skip().
This fixes a bug, where the TAP output would be invalid when skipping:
TAP version 13
1..1
ok 2 # SKIP Not implemented on architecture
The SKIP line should start with "ok 1" as the plan only contains one test.
Fixes: 3b5992eaf7 ("selftests: vDSO: unconditionally build chacha test")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Link: https://lore.kernel.org/all/20250611-selftests-vdso-fixes-v3-1-e62e37a6bcf5@linutronix.de
Trying to compile an x86 kernel on big endian results in this error:
net/ipv4/netfilter/iptable_nat.o: warning: objtool: iptable_nat_table_init+0x150: Unknown annotation type: 50331648
make[5]: *** [scripts/Makefile.build:287: net/ipv4/netfilter/iptable_nat.o] Error 255
Reason is a missing endian conversion in read_annotate().
Add the missing conversion to fix this.
Fixes: 2116b349e2 ("objtool: Generic annotation infrastructure")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250630131230.4130185-1-hca@linux.ibm.com
Add test cases for externally validated neighbor entries, testing both
IPv4 and IPv6. Name the file "test_neigh.sh" so that it could be
possibly extended in the future with more neighbor test cases.
Example output:
# ./test_neigh.sh
TEST: IPv4 "extern_valid" flag: Add entry [ OK ]
TEST: IPv4 "extern_valid" flag: Add with an invalid state [ OK ]
TEST: IPv4 "extern_valid" flag: Add with "use" flag [ OK ]
TEST: IPv4 "extern_valid" flag: Replace entry [ OK ]
TEST: IPv4 "extern_valid" flag: Replace entry with "managed" flag [ OK ]
TEST: IPv4 "extern_valid" flag: Replace with an invalid state [ OK ]
TEST: IPv4 "extern_valid" flag: Interface down [ OK ]
TEST: IPv4 "extern_valid" flag: Carrier down [ OK ]
TEST: IPv4 "extern_valid" flag: Transition to "reachable" state [ OK ]
TEST: IPv4 "extern_valid" flag: Transition back to "stale" state [ OK ]
TEST: IPv4 "extern_valid" flag: Forced garbage collection [ OK ]
TEST: IPv4 "extern_valid" flag: Periodic garbage collection [ OK ]
TEST: IPv6 "extern_valid" flag: Add entry [ OK ]
TEST: IPv6 "extern_valid" flag: Add with an invalid state [ OK ]
TEST: IPv6 "extern_valid" flag: Add with "use" flag [ OK ]
TEST: IPv6 "extern_valid" flag: Replace entry [ OK ]
TEST: IPv6 "extern_valid" flag: Replace entry with "managed" flag [ OK ]
TEST: IPv6 "extern_valid" flag: Replace with an invalid state [ OK ]
TEST: IPv6 "extern_valid" flag: Interface down [ OK ]
TEST: IPv6 "extern_valid" flag: Carrier down [ OK ]
TEST: IPv6 "extern_valid" flag: Transition to "reachable" state [ OK ]
TEST: IPv6 "extern_valid" flag: Transition back to "stale" state [ OK ]
TEST: IPv6 "extern_valid" flag: Forced garbage collection [ OK ]
TEST: IPv6 "extern_valid" flag: Periodic garbage collection [ OK ]
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20250626073111.244534-3-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
When someone has a global shellcheckrc file, for example at
~/.config/shellcheckrc, with the directive 'shell=sh', building perf
will fail with many shellcheck errors like:
In tests/shell/base_probe/test_adding_kernel.sh line 294:
(( TEST_RESULT += $? ))
^---------------------^ SC3006 (warning): In POSIX sh, standalone ((..)) is undefined.
For more information:
https://www.shellcheck.net/wiki/SC3006 -- In POSIX sh, standalone ((..)) is...
make[5]: *** [tests/Build:91: tests/shell/base_probe/test_adding_kernel.sh.shellcheck_log] Error 1
Passing the '-s bash' option ensures that it runs correctly regardless
of a developers global configuration.
This patch adds '-s bash' and other options to the SHELLCHECK variable
in Makefile.perf and makes use of the variable consistently.
Signed-off-by: Collin Funk <collin.funk1@gmail.com>
Link: https://lore.kernel.org/r/63491dbc8439edf2e949d80e264b9d22332fea61.1751082075.git.collin.funk1@gmail.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
The annotate test was sped up by Thomas Richter
<tmricht@linux.ibm.com> in commit
658a8805cb ("perf test: Speed up test case 70 annotate basic tests")
by reducing the annotate output using head. This causes flakes on
hybrid machines where the first event dumped may not have the samples
for the test within it. Rather than reduce the output using `head`
switch to `--percent-limit 10` which will stop annotate dumping
functions that have an overhead of less than 10%, the noploop program
should be using more.
Add the missing objdump option for the pipe mode version of the
objdump with a command test.
Signed-off-by: Ian Rogers <irogers@google.com>
Tested-by: Thomas Richter <tmricht@linux.ibm.com>
Link: https://lore.kernel.org/r/20250628015832.1271229-1-irogers@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Pull LoongArch fixes from Huacai Chen:
- replace __ASSEMBLY__ with __ASSEMBLER__ in headers like others
- fix build warnings about export.h
- reserve the EFI memory map region for kdump
- handle __init vs inline mismatches
- fix some KVM bugs
* tag 'loongarch-fixes-6.16-1' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: KVM: Disable updating of "num_cpu" and "feature"
LoongArch: KVM: Check validity of "num_cpu" from user space
LoongArch: KVM: Check interrupt route from physical CPU
LoongArch: KVM: Fix interrupt route update with EIOINTC
LoongArch: KVM: Add address alignment check for IOCSR emulation
LoongArch: KVM: Avoid overflow with array index
LoongArch: Handle KCOV __init vs inline mismatches
LoongArch: Reserve the EFI memory map region
LoongArch: Fix build warnings about export.h
LoongArch: Replace __ASSEMBLY__ with __ASSEMBLER__ in headers
Pull misc fixes from Andrew Morton:
"16 hotfixes.
6 are cc:stable and the remainder address post-6.15 issues or aren't
considered necessary for -stable kernels. 5 are for MM"
* tag 'mm-hotfixes-stable-2025-06-27-16-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
MAINTAINERS: add Lorenzo as THP co-maintainer
mailmap: update Duje Mihanović's email address
selftests/mm: fix validate_addr() helper
crashdump: add CONFIG_KEYS dependency
mailmap: correct name for a historical account of Zijun Hu
mailmap: add entries for Zijun Hu
fuse: fix runtime warning on truncate_folio_batch_exceptionals()
scripts/gdb: fix dentry_name() lookup
mm/damon/sysfs-schemes: free old damon_sysfs_scheme_filter->memcg_path on write
mm/alloc_tag: fix the kmemleak false positive issue in the allocation of the percpu variable tag->counters
lib/group_cpus: fix NULL pointer dereference from group_cpus_evenly()
mm/hugetlb: remove unnecessary holding of hugetlb_lock
MAINTAINERS: add missing files to mm page alloc section
MAINTAINERS: add tree entry to mm init block
mm: add OOM killer maintainer structure
fs/proc/task_mmu: fix PAGE_IS_PFNZERO detection for the huge zero folio
Test DSACK behavior with non contiguous ranges.
Without prior fix (tcp: fix tcp_ofo_queue() to avoid including
too much DUP SACK range) this would fail with:
tcp_dsack_mult.pkt:37: error handling packet: bad value outbound TCP option 5
script packet: 0.100682 . 1:1(0) ack 6001 <nop,nop,sack 1001:3001 7001:8001>
actual packet: 0.100679 . 1:1(0) ack 6001 win 1097 <nop,nop,sack 1001:6001 7001:8001>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: xin.guo <guoxin0309@gmail.com>
Link: https://patch.msgid.link/20250626123420.1933835-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Recently it added -fno-strict-aliasing to sync with the kernel behavior.
But it caused an error due to potential uninitialized access like below:
In file included from util/symbol.c:27:
In function ‘dso__set_symbol_names_len’,
inlined from ‘dso__sort_by_name’ at util/symbol.c:638:4:
util/dso.h:654:46: error: ‘len’ may be used uninitialized [-Werror=maybe-uninitialized]
654 | RC_CHK_ACCESS(dso)->symbol_names_len = len;
| ^
util/symbol.c: In function ‘dso__sort_by_name’:
util/symbol.c:634:24: note: ‘len’ was declared here
634 | size_t len;
| ^~~
Let's just initialize it with 0.
Fixes: 55a18d2f3f ("perf build: enable -fno-strict-aliasing")
Closes: https://lore.kernel.org/r/aF7JC8zkG5-_-nY_@google.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Pull block fixes from Jens Axboe:
- Fixes for ublk:
- fix C++ narrowing warnings in the uapi header
- update/improve UBLK_F_SUPPORT_ZERO_COPY comment in uapi header
- fix for the ublk ->queue_rqs() implementation, limiting a batch
to just the specific task AND ring
- ublk_get_data() error handling fix
- sanity check more arguments in ublk_ctrl_add_dev()
- selftest addition
- NVMe pull request via Christoph:
- reset delayed remove_work after reconnect
- fix atomic write size validation
- Fix for a warning introduced in bdev_count_inflight_rw() in this
merge window
* tag 'block-6.16-20250626' of git://git.kernel.dk/linux:
block: fix false warning in bdev_count_inflight_rw()
ublk: sanity check add_dev input for underflow
nvme: fix atomic write size validation
nvme: refactor the atomic write unit detection
nvme: reset delayed remove_work after reconnect
ublk: setup ublk_io correctly in case of ublk_get_data() failure
ublk: update UBLK_F_SUPPORT_ZERO_COPY comment in UAPI header
ublk: fix narrowing warnings in UAPI header
selftests: ublk: don't take same backing file for more than one ublk devices
ublk: build batch from IOs in same io_ring_ctx and io task
