diff options
author | Daniel Latypov <dlatypov@google.com> | 2022-01-26 00:00:09 +0300 |
---|---|---|
committer | Shuah Khan <skhan@linuxfoundation.org> | 2022-01-31 21:55:27 +0300 |
commit | 6419abb80e82c603bbec6d7f5af6c2f79fa5c4ae (patch) | |
tree | c5d0b5344e3434598dbd5a9d4892eac6d58ebeaf /lib/kunit/assert.c | |
parent | 95dcbc55fe4ffe262795bea02a42695c85a22dc4 (diff) | |
download | linux-6419abb80e82c603bbec6d7f5af6c2f79fa5c4ae.tar.xz |
kunit: remove va_format from kunit_assert
The concern is that having a lot of redundant fields in kunit_assert can
blow up stack usage if the compiler doesn't optimize them away [1].
The comment on this field implies that it was meant to be initialized
when the expect/assert was declared, but this only happens when we run
kunit_do_failed_assertion().
We don't need to access it outside of that function, so move it out of
the struct and make it a local variable there.
This change also takes the chance to reduce the number of macros by
inlining the now simplified KUNIT_INIT_ASSERT_STRUCT() macro.
[1] https://groups.google.com/g/kunit-dev/c/i3fZXgvBrfA/m/VULQg1z6BAAJ
Signed-off-by: Daniel Latypov <dlatypov@google.com>
Reviewed-by: David Gow <davidgow@google.com>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Diffstat (limited to 'lib/kunit/assert.c')
-rw-r--r-- | lib/kunit/assert.c | 27 |
1 files changed, 16 insertions, 11 deletions
diff --git a/lib/kunit/assert.c b/lib/kunit/assert.c index 9f4492a8e24e..c9c7ee0dfafa 100644 --- a/lib/kunit/assert.c +++ b/lib/kunit/assert.c @@ -30,22 +30,23 @@ void kunit_assert_prologue(const struct kunit_loc *loc, } EXPORT_SYMBOL_GPL(kunit_assert_prologue); -void kunit_assert_print_msg(const struct kunit_assert *assert, - struct string_stream *stream) +static void kunit_assert_print_msg(const struct va_format *message, + struct string_stream *stream) { - if (assert->message.fmt) - string_stream_add(stream, "\n%pV", &assert->message); + if (message->fmt) + string_stream_add(stream, "\n%pV", message); } -EXPORT_SYMBOL_GPL(kunit_assert_print_msg); void kunit_fail_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { - string_stream_add(stream, "%pV", &assert->message); + string_stream_add(stream, "%pV", message); } EXPORT_SYMBOL_GPL(kunit_fail_assert_format); void kunit_unary_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { struct kunit_unary_assert *unary_assert; @@ -60,11 +61,12 @@ void kunit_unary_assert_format(const struct kunit_assert *assert, string_stream_add(stream, KUNIT_SUBTEST_INDENT "Expected %s to be false, but is true\n", unary_assert->condition); - kunit_assert_print_msg(assert, stream); + kunit_assert_print_msg(message, stream); } EXPORT_SYMBOL_GPL(kunit_unary_assert_format); void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { struct kunit_ptr_not_err_assert *ptr_assert; @@ -82,7 +84,7 @@ void kunit_ptr_not_err_assert_format(const struct kunit_assert *assert, ptr_assert->text, PTR_ERR(ptr_assert->value)); } - kunit_assert_print_msg(assert, stream); + kunit_assert_print_msg(message, stream); } EXPORT_SYMBOL_GPL(kunit_ptr_not_err_assert_format); @@ -110,6 +112,7 @@ static bool is_literal(struct kunit *test, const char *text, long long value, } void kunit_binary_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { struct kunit_binary_assert *binary_assert; @@ -132,11 +135,12 @@ void kunit_binary_assert_format(const struct kunit_assert *assert, string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %lld", binary_assert->right_text, binary_assert->right_value); - kunit_assert_print_msg(assert, stream); + kunit_assert_print_msg(message, stream); } EXPORT_SYMBOL_GPL(kunit_binary_assert_format); void kunit_binary_ptr_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { struct kunit_binary_ptr_assert *binary_assert; @@ -155,7 +159,7 @@ void kunit_binary_ptr_assert_format(const struct kunit_assert *assert, string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == %px", binary_assert->right_text, binary_assert->right_value); - kunit_assert_print_msg(assert, stream); + kunit_assert_print_msg(message, stream); } EXPORT_SYMBOL_GPL(kunit_binary_ptr_assert_format); @@ -176,6 +180,7 @@ static bool is_str_literal(const char *text, const char *value) } void kunit_binary_str_assert_format(const struct kunit_assert *assert, + const struct va_format *message, struct string_stream *stream) { struct kunit_binary_str_assert *binary_assert; @@ -196,6 +201,6 @@ void kunit_binary_str_assert_format(const struct kunit_assert *assert, string_stream_add(stream, KUNIT_SUBSUBTEST_INDENT "%s == \"%s\"", binary_assert->right_text, binary_assert->right_value); - kunit_assert_print_msg(assert, stream); + kunit_assert_print_msg(message, stream); } EXPORT_SYMBOL_GPL(kunit_binary_str_assert_format); |