Commit ea2dd7c0 authored by David Gow's avatar David Gow Committed by Shuah Khan

lib/list-test: add a test for the 'list' doubly linked list

Add a KUnit test for the kernel doubly linked list implementation in
include/linux/list.h

Each test case (list_test_x) is focused on testing the behaviour of the
list function/macro 'x'. None of the tests pass invalid lists to these
macros, and so should behave identically with DEBUG_LIST enabled and
disabled.

Note that, at present, it only tests the list_ types (not the
singly-linked hlist_), and does not yet test all of the
list_for_each_entry* macros (and some related things like
list_prepare_entry).

Ignoring checkpatch.pl spurious errors related to its handling of for_each
and other list macros. checkpatch.pl expects anything with for_each in its
name to be a loop and expects that the open brace is placed on the same
line as for a for loop. In this case, test case naming scheme includes
name of the macro it is testing, which results in the spurious errors.
Commit message updated by Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: default avatarDavid Gow <davidgow@google.com>
Reviewed-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Tested-by: default avatarBrendan Higgins <brendanhiggins@google.com>
Signed-off-by: default avatarShuah Khan <skhan@linuxfoundation.org>
parent 1cbeab1b
...@@ -9504,6 +9504,13 @@ F: Documentation/misc-devices/lis3lv02d.rst ...@@ -9504,6 +9504,13 @@ F: Documentation/misc-devices/lis3lv02d.rst
F: drivers/misc/lis3lv02d/ F: drivers/misc/lis3lv02d/
F: drivers/platform/x86/hp_accel.c F: drivers/platform/x86/hp_accel.c
LIST KUNIT TEST
M: David Gow <davidgow@google.com>
L: linux-kselftest@vger.kernel.org
L: kunit-dev@googlegroups.com
S: Maintained
F: lib/list-test.c
LIVE PATCHING LIVE PATCHING
M: Josh Poimboeuf <jpoimboe@redhat.com> M: Josh Poimboeuf <jpoimboe@redhat.com>
M: Jiri Kosina <jikos@kernel.org> M: Jiri Kosina <jikos@kernel.org>
......
...@@ -1961,6 +1961,24 @@ config SYSCTL_KUNIT_TEST ...@@ -1961,6 +1961,24 @@ config SYSCTL_KUNIT_TEST
If unsure, say N. If unsure, say N.
config LIST_KUNIT_TEST
bool "KUnit Test for Kernel Linked-list structures"
depends on KUNIT
help
This builds the linked list KUnit test suite.
It tests that the API and basic functionality of the list_head type
and associated macros.
KUnit tests run during boot and output the results to the debug log
in TAP format (http://testanything.org/). Only useful for kernel devs
running the KUnit test harness, and not intended for inclusion into a
production build.
For more information on KUnit and unit tests in general please refer
to the KUnit documentation in Documentation/dev-tools/kunit/.
If unsure, say N.
config TEST_UDELAY config TEST_UDELAY
tristate "udelay test driver" tristate "udelay test driver"
help help
......
...@@ -292,3 +292,6 @@ obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o ...@@ -292,3 +292,6 @@ obj-$(CONFIG_GENERIC_LIB_MULDI3) += muldi3.o
obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o obj-$(CONFIG_GENERIC_LIB_CMPDI2) += cmpdi2.o
obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o obj-$(CONFIG_GENERIC_LIB_UCMPDI2) += ucmpdi2.o
obj-$(CONFIG_OBJAGG) += objagg.o obj-$(CONFIG_OBJAGG) += objagg.o
# KUnit tests
obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
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