From: David Gow <davidgow@google.com>
To: "Linus Torvalds" <torvalds@linux-foundation.org>,
"Shuah Khan" <skhan@linuxfoundation.org>,
"Guenter Roeck" <linux@roeck-us.net>,
"Rae Moar" <rmoar@google.com>,
"Matthew Auld" <matthew.auld@intel.com>,
"Arunpravin Paneer Selvam" <arunpravin.paneerselvam@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"Kees Cook" <keescook@chromium.org>,
"Maíra Canal" <mcanal@igalia.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Matthew Brost" <matthew.brost@intel.com>,
"Willem de Bruijn" <willemb@google.com>,
"Florian Westphal" <fw@strlen.de>,
"Cassio Neri" <cassio.neri@gmail.com>,
"Javier Martinez Canillas" <javierm@redhat.com>,
"Arthur Grillo" <arthur.grillo@usp.br>
Cc: David Gow <davidgow@google.com>,
Brendan Higgins <brendan.higgins@linux.dev>,
Daniel Latypov <dlatypov@google.com>,
Stephen Boyd <sboyd@kernel.org>, David Airlie <airlied@gmail.com>,
Maxime Ripard <mripard@kernel.org>,
"David S . Miller" <davem@davemloft.net>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
intel-xe@lists.freedesktop.org, linux-rtc@vger.kernel.org,
linux-kselftest@vger.kernel.org, kunit-dev@googlegroups.com,
linux-hardening@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH 0/9] kunit: Fix printf format specifier issues in KUnit assertions
Date: Wed, 21 Feb 2024 17:27:13 +0800 [thread overview]
Message-ID: <20240221092728.1281499-1-davidgow@google.com> (raw)
KUnit has several macros which accept a log message, which can contain
printf format specifiers. Some of these (the explicit log macros)
already use the __printf() gcc attribute to ensure the format specifiers
are valid, but those which could fail the test, and hence used
__kunit_do_failed_assertion() behind the scenes, did not.
These include:
- KUNIT_EXPECT_*_MSG()
- KUNIT_ASSERT_*_MSG()
- KUNIT_FAIL()
This series adds the __printf() attribute, and fixes all of the issues
uncovered. (Or, at least, all of those I could find with an x86_64
allyesconfig, and the default KUnit config on a number of other
architectures. Please test!)
The issues in question basically take the following forms:
- int / long / long long confusion: typically a type being updated, but
the format string not.
- Use of integer format specifiers (%d/%u/%li/etc) for types like size_t
or pointer differences (technically ptrdiff_t), which would only work
on some architectures.
- Use of integer format specifiers in combination with PTR_ERR(), where
%pe would make more sense.
- Use of empty messages which, whilst technically not incorrect, are not
useful and trigger a gcc warning.
We'd like to get these (or equivalent) in for 6.9 if possible, so please
do take a look if possible.
Thanks,
-- David
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Closes: https://lore.kernel.org/linux-kselftest/CAHk-=wgJMOquDO5f8ShH1f4rzZwzApNVCw643m5-Yj+BfsFstA@mail.gmail.com/
David Gow (9):
kunit: test: Log the correct filter string in executor_test
lib/cmdline: Fix an invalid format specifier in an assertion msg
lib: memcpy_kunit: Fix an invalid format specifier in an assertion msg
time: test: Fix incorrect format specifier
rtc: test: Fix invalid format specifier.
net: test: Fix printf format specifier in skb_segment kunit test
drm: tests: Fix invalid printf format specifiers in KUnit tests
drm/xe/tests: Fix printf format specifiers in xe_migrate test
kunit: Annotate _MSG assertion variants with gnu printf specifiers
drivers/gpu/drm/tests/drm_buddy_test.c | 14 +++++++-------
drivers/gpu/drm/tests/drm_mm_test.c | 6 +++---
drivers/gpu/drm/xe/tests/xe_migrate.c | 8 ++++----
drivers/rtc/lib_test.c | 2 +-
include/kunit/test.h | 12 ++++++------
kernel/time/time_test.c | 2 +-
lib/cmdline_kunit.c | 2 +-
lib/kunit/executor_test.c | 2 +-
lib/memcpy_kunit.c | 4 ++--
net/core/gso_test.c | 2 +-
10 files changed, 27 insertions(+), 27 deletions(-)
--
2.44.0.rc0.258.g7320e95886-goog
next reply other threads:[~2024-02-21 9:28 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-21 9:27 David Gow [this message]
2024-02-21 9:27 ` [PATCH 1/9] kunit: test: Log the correct filter string in executor_test David Gow
2024-02-21 13:25 ` Guenter Roeck
2024-02-21 20:04 ` Justin Stitt
2024-02-21 20:29 ` Daniel Latypov
2024-02-22 20:58 ` Rae Moar
2024-02-21 9:27 ` [PATCH 2/9] lib/cmdline: Fix an invalid format specifier in an assertion msg David Gow
2024-02-21 13:25 ` Guenter Roeck
2024-02-21 20:10 ` Justin Stitt
2024-02-22 6:22 ` David Gow
2024-02-22 17:36 ` Daniel Latypov
2024-02-22 17:56 ` Linus Torvalds
2024-02-21 9:27 ` [PATCH 3/9] lib: memcpy_kunit: " David Gow
2024-02-21 13:25 ` Guenter Roeck
2024-02-21 21:05 ` Justin Stitt
2024-02-21 9:27 ` [PATCH 4/9] time: test: Fix incorrect format specifier David Gow
2024-02-21 13:25 ` Guenter Roeck
2024-02-21 21:06 ` Justin Stitt
2024-02-21 9:27 ` [PATCH 5/9] rtc: test: Fix invalid " David Gow
2024-02-21 13:26 ` Guenter Roeck
2024-02-21 21:06 ` Justin Stitt
2024-02-27 20:32 ` Alexandre Belloni
2024-02-27 21:23 ` Shuah Khan
2024-02-27 22:48 ` Alexandre Belloni
2024-02-21 9:27 ` [PATCH 6/9] net: test: Fix printf format specifier in skb_segment kunit test David Gow
2024-02-21 13:26 ` Guenter Roeck
2024-02-21 21:26 ` Justin Stitt
2024-02-21 9:27 ` [PATCH 7/9] drm: tests: Fix invalid printf format specifiers in KUnit tests David Gow
2024-02-21 10:21 ` Matthew Auld
2024-02-21 10:45 ` Christian König
2024-02-21 13:26 ` Guenter Roeck
2024-02-21 21:29 ` Justin Stitt
2024-02-27 23:24 ` Shuah Khan
2024-02-21 9:27 ` [PATCH 8/9] drm/xe/tests: Fix printf format specifiers in xe_migrate test David Gow
2024-02-21 13:26 ` Guenter Roeck
2024-02-22 5:05 ` Lucas De Marchi
2024-02-22 5:59 ` Linus Torvalds
2024-02-22 9:52 ` Thomas Hellström
2024-02-21 9:27 ` [PATCH 9/9] kunit: Annotate _MSG assertion variants with gnu printf specifiers David Gow
2024-02-21 13:26 ` Guenter Roeck
2024-02-21 20:02 ` Justin Stitt
2024-02-22 14:23 ` [PATCH 0/9] kunit: Fix printf format specifier issues in KUnit assertions Shuah Khan
2024-02-27 23:32 ` Shuah Khan
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