linux-stable.git/tools, branch v5.15.97

selftest/lkdtm: Skip stack-entropy test if lkdtm is not available

2023-02-22T11:57:07+00:00

commit 90091c367e74d5b58d9ebe979cc363f7468f58d3 upstream.

Exit with return code 4 if lkdtm is not available like other tests
in order to properly skip the test.

Signed-off-by: Misono Tomohiro 
Signed-off-by: Kees Cook 
Link: https://lore.kernel.org/r/20210805101236.1140381-1-misono.tomohiro@jp.fujitsu.com
Cc: Andrew Paniakin 
Signed-off-by: Greg Kroah-Hartman

tools/virtio: fix the vringh test for virtio ring changes

2023-02-22T11:57:01+00:00

[ Upstream commit 3f7b75abf41cc4143aa295f62acbb060a012868d ]

Fix the build caused by missing kmsan_handle_dma() and is_power_of_2() that
are used in drivers/virtio/virtio_ring.c.

Signed-off-by: Shunsuke Mie 
Message-Id: <20230110034310.779744-1-mie@igel.co.jp>
Signed-off-by: Michael S. Tsirkin 
Signed-off-by: Sasha Levin

selftests/bpf: Verify copy_register_state() preserves parent/live fields

2023-02-22T11:57:01+00:00

[ Upstream commit b9fa9bc839291020b362ab5392e5f18ba79657ac ]

A testcase to check that verifier.c:copy_register_state() preserves
register parentage chain and livness information.

Signed-off-by: Eduard Zingerman 
Link: https://lore.kernel.org/r/20230106142214.1040390-3-eddyz87@gmail.com
Signed-off-by: Alexei Starovoitov 
Signed-off-by: Sasha Levin

selftests: forwarding: lib: quote the sysctl values

2023-02-14T18:18:01+00:00

[ Upstream commit 3a082086aa200852545cf15159213582c0c80eba ]

When set/restore sysctl value, we should quote the value as some keys
may have multi values, e.g. net.ipv4.ping_group_range

Fixes: f5ae57784ba8 ("selftests: forwarding: lib: Add sysctl_set(), sysctl_restore()")
Signed-off-by: Hangbin Liu 
Reviewed-by: Petr Machata 
Link: https://lore.kernel.org/r/20230208032110.879205-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni 
Signed-off-by: Sasha Levin

selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking

2023-02-09T10:26:38+00:00

[ Upstream commit 329c9cd769c2e306957df031efff656c40922c76 ]

The test tool can check that the zerocopy number of completions value is
valid taking into consideration the number of datagram send calls. This can
catch the system into a state where the datagrams are still in the system
(for example in a qdisk, waiting for the network interface to return a
completion notification, etc).

This change adds a retry logic of computing the number of completions up to
a configurable (via CLI) timeout (default: 2 seconds).

Fixes: 79ebc3c26010 ("net/udpgso_bench_tx: options to exercise TX CMSG")
Signed-off-by: Andrei Gherzan 
Cc: Willem de Bruijn 
Cc: Paolo Abeni 
Reviewed-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20230201001612.515730-4-andrei.gherzan@canonical.com
Signed-off-by: Paolo Abeni 
Signed-off-by: Sasha Levin

selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs

2023-02-09T10:26:38+00:00

[ Upstream commit dafe93b9ee21028d625dce347118b82659652eff ]

"udpgro_bench.sh" invokes udpgso_bench_rx/udpgso_bench_tx programs
subsequently and while doing so, there is a chance that the rx one is not
ready to accept socket connections. This racing bug could fail the test
with at least one of the following:

./udpgso_bench_tx: connect: Connection refused
./udpgso_bench_tx: sendmsg: Connection refused
./udpgso_bench_tx: write: Connection refused

This change addresses this by making udpgro_bench.sh wait for the rx
program to be ready before firing off the tx one - up to a 10s timeout.

Fixes: 3a687bef148d ("selftests: udp gso benchmark")
Signed-off-by: Andrei Gherzan 
Cc: Paolo Abeni 
Cc: Willem de Bruijn 
Reviewed-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20230201001612.515730-3-andrei.gherzan@canonical.com
Signed-off-by: Paolo Abeni 
Signed-off-by: Sasha Levin

selftests: net: udpgso_bench_rx/tx: Stop when wrong CLI args are provided

2023-02-09T10:26:38+00:00

[ Upstream commit db9b47ee9f5f375ab0c5daeb20321c75b4fa657d ]

Leaving unrecognized arguments buried in the output, can easily hide a
CLI/script typo. Avoid this by exiting when wrong arguments are provided to
the udpgso_bench test programs.

Fixes: 3a687bef148d ("selftests: udp gso benchmark")
Signed-off-by: Andrei Gherzan 
Cc: Willem de Bruijn 
Reviewed-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20230201001612.515730-2-andrei.gherzan@canonical.com
Signed-off-by: Paolo Abeni 
Signed-off-by: Sasha Levin

selftests: net: udpgso_bench_rx: Fix 'used uninitialized' compiler warning

2023-02-09T10:26:38+00:00

[ Upstream commit c03c80e3a03ffb4f790901d60797e9810539d946 ]

This change fixes the following compiler warning:

/usr/include/x86_64-linux-gnu/bits/error.h:40:5: warning: ‘gso_size’ may
be used uninitialized [-Wmaybe-uninitialized]
   40 |     __error_noreturn (__status, __errnum, __format,
   __va_arg_pack ());
         |
	 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	 udpgso_bench_rx.c: In function ‘main’:
	 udpgso_bench_rx.c:253:23: note: ‘gso_size’ was declared here
	   253 |         int ret, len, gso_size, budget = 256;

Fixes: 3327a9c46352 ("selftests: add functionals test for UDP GRO")
Signed-off-by: Andrei Gherzan 
Reviewed-by: Willem de Bruijn 
Link: https://lore.kernel.org/r/20230201001612.515730-1-andrei.gherzan@canonical.com
Signed-off-by: Paolo Abeni 
Signed-off-by: Sasha Levin

selftests: Provide local define of __cpuid_count()

2023-02-06T06:59:01+00:00

commit a23039c7306f53416ba35d230201398ea34f4640 upstream.

Some selftests depend on information provided by the CPUID instruction.
To support this dependency the selftests implement private wrappers for
CPUID.

Duplication of the CPUID wrappers should be avoided.

Both gcc and clang/LLVM provide __cpuid_count() macros but neither
the macro nor its header file are available in all the compiler
versions that need to be supported by the selftests. __cpuid_count()
as provided by gcc is available starting with gcc v4.4, so it is
not available if the latest tests need to be run in all the
environments required to support kernels v4.9 and v4.14 that
have the minimal required gcc v3.2.

Duplicate gcc's __cpuid_count() macro to provide a centrally defined
macro for __cpuid_count() to help eliminate the duplicate CPUID wrappers
while continuing to compile in older environments.

Suggested-by: Shuah Khan 
Signed-off-by: Reinette Chatre 
Signed-off-by: Shuah Khan 
Cc: Kyle Huey 
Signed-off-by: Greg Kroah-Hartman

selftests/vm: remove ARRAY_SIZE define from individual tests

2023-02-06T06:59:01+00:00

commit e89908201e2509354c40158b517945bf3d645812 upstream.

ARRAY_SIZE is defined in several selftests. Remove definitions from
individual test files and include header file for the define instead.
ARRAY_SIZE define is added in a separate patch to prepare for this
change.

Remove ARRAY_SIZE from vm tests and pickup the one defined in
kselftest.h.

Signed-off-by: Shuah Khan 
Cc: Kyle Huey 
Signed-off-by: Greg Kroah-Hartman