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kunit: memcpy: Split slow memcpy tests into MEMCPY_SLOW_KUNIT_TEST

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Since the long memcpy tests may stall a system for tens of seconds
in virtualized architecture environments, split those tests off under
CONFIG_MEMCPY_SLOW_KUNIT_TEST so they can be separately disabled.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/lkml/20221226195206.GA2626419@roeck-us.net
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: David Gow <davidgow@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Kees Cook <keescook@chromium.org>
This commit is contained in:
Kees Cook
2023-01-06 19:47:05 -08:00
parent 42633ed852
commit 4acf1de35f
2 changed files with 11 additions and 0 deletions
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9
lib/Kconfig.debug
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@@ -2566,6 +2566,15 @@ config MEMCPY_KUNIT_TEST
If unsure, say N.
config MEMCPY_SLOW_KUNIT_TEST
bool "Include exhaustive memcpy tests"
depends on MEMCPY_KUNIT_TEST
default y
help
Some memcpy tests are quite exhaustive in checking for overlaps
and bit ranges. These can be very slow, so they are split out
as a separate config, in case they need to be disabled.
config IS_SIGNED_TYPE_KUNIT_TEST
tristate "Test is_signed_type() macro" if !KUNIT_ALL_TESTS
depends on KUNIT