linux-toradex.git/lib/test_bitmap.c, branch v5.19-rc7

lib/bitmap: add test for bitmap_{from,to}_arr64

2022-06-03T13:52:58+00:00

Test newly added bitmap_{from,to}_arr64() functions similarly to
already existing bitmap_{from,to}_arr32() tests.

CC: Alexander Gordeev 
CC: Andy Shevchenko 
CC: Christian Borntraeger 
CC: Claudio Imbrenda 
CC: David Hildenbrand 
CC: Heiko Carstens 
CC: Janosch Frank 
CC: Rasmus Villemoes 
CC: Sven Schnelle 
CC: Vasily Gorbik 
Signed-off-by: Yury Norov

lib: bitmap: add performance test for bitmap_print_to_pagebuf

2022-01-15T16:47:31+00:00

Functional tests for bitmap_print_to_pagebuf() are provided
in lib/test_printf.c. This patch adds performance test for
a case of fully set bitmap.

Signed-off-by: Yury Norov 
Tested-by: Wolfram Sang

lib: test_bitmap: add bitmap_print_bitmask/list_to_buf test cases

2021-08-13T08:27:49+00:00

The added test items cover both cases where bitmap buf of the printed
result is greater than and less than 4KB.
And it also covers the case where offset for printing is non-zero
which will happen when printed buf is larger than one page in
sysfs bin_attribute.

Reported-by: kernel test robot 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Barry Song 
Link: https://lore.kernel.org/r/20210806110251.560-3-song.bao.hua@hisilicon.com
Signed-off-by: Greg Kroah-Hartman

bitmap_parse: Support 'all' semantics

2021-05-10T22:38:20+00:00

RCU code supports an 'all' group as a special case when parsing rcu_nocbs
parameter. This patch moves the 'all' support to the core bitmap_parse
code, so that all bitmap users can enjoy this extension.

Moving 'all' parsing to a bitmap_parse level also allows users to pass
patterns together with 'all' in regular group:pattern format, for example,
"rcu_nocbs=all:1/2" would offload all the even-numbered CPUs regardless
of the number of CPUs on the system.

Reviewed-by: Andy Shevchenko 
Signed-off-by: Yury Norov 
Signed-off-by: Paul E. McKenney

lib: test_bitmap: add tests for "N" alias

2021-03-08T22:16:58+00:00

These are copies of existing tests, with just 31 --> N.  This ensures
the recently added "N" alias transparently works in any normally
numeric fields of a region specification.

Cc: Yury Norov 
Cc: Rasmus Villemoes 
Cc: Andy Shevchenko 
Acked-by: Yury Norov 
Signed-off-by: Paul Gortmaker 
Signed-off-by: Paul E. McKenney

lib: test_bitmap: add more start-end:offset/len tests

2021-03-08T22:16:58+00:00

There are inputs to bitmap_parselist() that would probably never
be entered manually by a person, but might result from some kind of
automated input generator.  Things like ranges of length 1, or group
lengths longer than nbits, overlaps, or offsets of zero.

Adding these tests serve two purposes:

1) document what might seem odd but nonetheless valid input.

2) don't regress from what we currently accept as valid.

Cc: Yury Norov 
Cc: Rasmus Villemoes 
Cc: Andy Shevchenko 
Acked-by: Yury Norov 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Paul Gortmaker 
Signed-off-by: Paul E. McKenney

lib: test_bitmap: add tests to trigger ERANGE case.

2021-03-08T22:16:58+00:00

Add tests that specify a valid range, but one that is outside the
width of the bitmap for which it is to be applied to.  These should
trigger an -ERANGE response from the code.

Cc: Yury Norov 
Cc: Rasmus Villemoes 
Cc: Andy Shevchenko 
Acked-by: Yury Norov 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Paul Gortmaker 
Signed-off-by: Paul E. McKenney

lib: test_bitmap: clearly separate ERANGE from EINVAL tests.

2021-03-08T22:16:58+00:00

This block of tests was meant to find/flag incorrect use of the ":"
and "/" separators (syntax errors) and invalid (zero) group len.

However they were specified with an 8 bit width and 32 bit operations,
so they really contained two errors (EINVAL and ERANGE).

Promote them to 32 bit so it is clear what they are meant to target.
Then we can add tests specific for ERANGE (no syntax errors, just
doing 32bit op on 8 bit width, plus a typical 9-on-8 fencepost error).

Cc: Yury Norov 
Cc: Rasmus Villemoes 
Cc: Andy Shevchenko 
Acked-by: Yury Norov 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Paul Gortmaker 
Signed-off-by: Paul E. McKenney

lib: use KSTM_MODULE_GLOBALS macro in kselftest drivers

2021-02-15T10:01:42+00:00

Instead of defining the total/failed test counters manually,
test drivers that are clients of kselftest should use the
macro created for this purpose.

Signed-off-by: Timur Tabi 
Reviewed-by: Petr Mladek 
Acked-by: Marco Elver 
Signed-off-by: Petr Mladek 
Link: https://lore.kernel.org/r/20210214161348.369023-2-timur@kernel.org

test_bitmap: remove user bitmap tests

2020-09-09T02:21:33+00:00

We can't run the tests for userspace bitmap parsing if set_fs() doesn't
exist, and it is about to go away for x86, powerpc with other major
architectures to follow.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro