linux-stable.git/tools/testing, branch linux-4.1.y

selftests/powerpc: Fix TM resched DSCR test with some compilers

2018-05-23T01:36:25+00:00

[ Upstream commit fe06fe860250a4f01d0eaf70a2563b1997174a74 ]

The tm-resched-dscr test has started failing sometimes, depending on
what compiler it's built with, eg:

  test: tm_resched_dscr
  Check DSCR TM context switch: tm-resched-dscr: tm-resched-dscr.c:76: test_body: Assertion `rv' failed.
  !! child died by signal 6

When it fails we see that the compiler doesn't initialise rv to 1 before
entering the inline asm block. Although that's counter intuitive, it
is allowed because we tell the compiler that the inline asm will write
to rv (using "=r"), meaning the original value is irrelevant.

Marking it as a read/write parameter would presumably work, but it seems
simpler to fix it by setting the initial value of rv in the inline asm.

Fixes: 96d016108640 ("powerpc: Correct DSCR during TM context switch")
Signed-off-by: Michael Ellerman 
Acked-by: Michael Neuling 
Signed-off-by: Sasha Levin

rcutorture/configinit: Fix build directory error message

2018-05-23T01:33:47+00:00

[ Upstream commit 2adfa4210f8f35cdfb4e08318cc06b99752964c2 ]

The 'configinit.sh' script checks the format of optional argument for the
build directory, printing an error message if the format is not valid.
However, the error message uses the wrong variable, indicating an empty
string even though the user entered a non-empty (but erroneous) string.
This commit fixes the script to use the correct variable.

Fixes: c87b9c601ac8 ("rcutorture: Add KVM-based test framework")

Signed-off-by: SeongJae Park 
Signed-off-by: Paul E. McKenney 
Signed-off-by: Sasha Levin

selftest/powerpc: Fix false failures for skipped tests

2018-01-17T17:55:25+00:00

[ Upstream commit a6d8a21596df041f36f4c2ccc260c459e3e851f1 ]

Tests under alignment subdirectory are skipped when executed on previous
generation hardware, but harness still marks them as failed.

  test: test_copy_unaligned
  tags: git_version:unknown
  [SKIP] Test skipped on line 26
  skip: test_copy_unaligned
  selftests: copy_unaligned [FAIL]

The MAGIC_SKIP_RETURN_VALUE value assigned to rc variable is retained till
the program exit which causes the test to be marked as failed.

This patch resets the value before returning to the main() routine.
With this patch the test o/p is as follows:

  test: test_copy_unaligned
  tags: git_version:unknown
  [SKIP] Test skipped on line 26
  skip: test_copy_unaligned
  selftests: copy_unaligned [PASS]

Signed-off-by: Sachin Sant 
Signed-off-by: Michael Ellerman 
Signed-off-by: Sasha Levin

tools: firmware: check for distro fallback udev cancel rule

2017-12-07T02:20:02+00:00

[ Upstream commit afb999cdef69148f366839e74470d8f5375ba5f1 ]

Some distributions (Debian, OpenSUSE) have a udev rule in place to cancel
all fallback mechanism uevents immediately. This would obviously
make it hard to test against the fallback mechanism test interface,
so we need to check for this.

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

selftests: firmware: send expected errors to /dev/null

2017-12-07T02:20:02+00:00

[ Upstream commit 880444e214cfd293a2e8cc4bd3505f7ffa6ce33a ]

Error that we expect should not be spilled to stdout.

Without this we get:

./fw_filesystem.sh: line 58: printf: write error: Invalid argument
./fw_filesystem.sh: line 63: printf: write error: No such device
./fw_filesystem.sh: line 69: echo: write error: No such file or directory
./fw_filesystem.sh: filesystem loading works
./fw_filesystem.sh: async filesystem loading works

With it:

./fw_filesystem.sh: filesystem loading works
./fw_filesystem.sh: async filesystem loading works

Signed-off-by: Luis R. Rodriguez 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin

selftests: firmware: add empty string and async tests

2017-12-07T02:20:02+00:00

[ Upstream commit 1b1fe542b6f010cf6bc7e1c92805e1c0e133e007 ]

Now that we've added a 'trigger_async_request' knob to test the
request_firmware_nowait() API, let's use it. Also add tests for the
empty ("") string, since there have been a couple errors in that
handling already.

Since we now have real ways that the sysfs write might fail, let's add
the appropriate check on the 'echo' lines too.

Signed-off-by: Brian Norris 
Acked-by: Kees Cook 
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

ktest: Fix child exit code processing

2017-05-17T19:06:58+00:00

[ Upstream commit 32677207dcc5e594254b7fb4fb2352b1755b1d5b ]

The child_exit errno needs to be shifted by 8 bits to compare against the
return values for the bisect variables.

Fixes: c5dacb88f0a64 ("ktest: Allow overriding bisect test results")
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt (VMware) 
Signed-off-by: Sasha Levin

selftests: do not require bash to run netsocktests testcase

2017-03-06T22:29:10+00:00

[ Upstream commit 3659f98b5375d195f1870c3e508fe51e52206839 ]

Nothing in this minimal script seems to require bash. We often run these
tests on embedded devices where the only shell available is the busybox
ash. Use sh instead.

Signed-off-by: Rolf Eike Beer 
Cc: stable@vger.kernel.org
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

selftests: do not require bash for the generated test

2017-03-06T22:29:10+00:00

[ Upstream commit a2b1e8a20c992b01eeb76de00d4f534cbe9f3822 ]

Nothing in this minimal script seems to require bash. We often run these
tests on embedded devices where the only shell available is the busybox
ash. Use sh instead.

Signed-off-by: Rolf Eike Beer 
Cc: stable@vger.kernel.org
Signed-off-by: Shuah Khan 
Signed-off-by: Sasha Levin

efi: Make efivarfs entries immutable by default

2016-04-12T02:44:23+00:00

[ Upstream commit ed8b0de5a33d2a2557dce7f9429dca8cb5bc5879 ]

"rm -rf" is bricking some peoples' laptops because of variables being
used to store non-reinitializable firmware driver data that's required
to POST the hardware.

These are 100% bugs, and they need to be fixed, but in the mean time it
shouldn't be easy to *accidentally* brick machines.

We have to have delete working, and picking which variables do and don't
work for deletion is quite intractable, so instead make everything
immutable by default (except for a whitelist), and make tools that
aren't quite so broad-spectrum unset the immutable flag.

Signed-off-by: Peter Jones 
Tested-by: Lee, Chun-Yi 
Acked-by: Matthew Garrett 
Signed-off-by: Matt Fleming 
Signed-off-by: Sasha Levin