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Subject[PATCH 0/4] kunit: more assertion reworking
From
RFC: https://lore.kernel.org/linux-kselftest/20220525154442.1438081-1-dlatypov@google.com/
Changes since then: tweak commit messages, reformatting to make
checkpatch.pl happy. Nothing substantial.
Why send this out again now: the initial Rust patchset no longer
contains the Kunit changes, so hopefully both series can go into 6.1
and later we can coordinate the update the kunit.rs wrapper.

This is a follow up to these three series:
https://lore.kernel.org/all/20220113165931.451305-1-dlatypov@google.com/
https://lore.kernel.org/all/20220118223506.1701553-1-dlatypov@google.com/
https://lore.kernel.org/all/20220125210011.3817742-1-dlatypov@google.com/

The two goals of those series were
a) reduce the size of struct kunit_assert and friends.
(struct kunit_assert went from 48 => 8 bytes on UML.)
b) simplify the internal code, mostly by deleting macros

This series goes further
a) sizeof(struct kunit_assert) = 0 now
b) e.g. we delete another class of macros (KUNIT_INIT_*_ASSERT_STRUCT)

Note: this does change the function signature of
kunit_do_failed_assertion, so we'd need to update the rust wrapper in
https://github.com/Rust-for-Linux/linux/blob/rust/rust/kernel/kunit.rs,
but hopefully it's just a simple change, e.g. maybe just like:
@@ -38,9 +38,7 @@
});
static CONDITION: &'static $crate::str::CStr =
$crate::c_str!(stringify!($cond));
static ASSERTION: UnaryAssert =
UnaryAssert($crate::bindings::kunit_unary_assert {
- assert: $crate::bindings::kunit_assert {
- format: Some($crate::bindings::kunit_unary_assert_format),
- },
+ assert: $crate::bindings::kunit_assert {},
condition: CONDITION.as_char_ptr(),
expected_true: true,
});
@@ -67,6 +65,7 @@
core::ptr::addr_of!(LOCATION.0),
$crate::bindings::kunit_assert_type_KUNIT_ASSERTION,
core::ptr::addr_of!(ASSERTION.0.assert),
+ Some($crate::bindings::kunit_unary_assert_format),
core::ptr::null(),
);
}

Daniel Latypov (4):
kunit: remove format func from struct kunit_assert, get it to 0 bytes
kunit: rename base KUNIT_ASSERTION macro to _KUNIT_FAILED
kunit: eliminate KUNIT_INIT_*_ASSERT_STRUCT macros
kunit: declare kunit_assert structs as const

include/kunit/assert.h | 74 ++----------------------
include/kunit/test.h | 127 +++++++++++++++++++++++------------------
lib/kunit/test.c | 7 ++-
3 files changed, 80 insertions(+), 128 deletions(-)

base-commit: 511cce163b75bc3933fa3de769a82bb7e8663f2b
--
2.38.0.rc1.362.ged0d419d3c-goog

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