Re: [PATCH v6] lib: add basic KUnit test for lib/math

From: kernel test robot <lkp@intel.com>
To: Daniel Latypov <dlatypov@google.com>, andriy.shevchenko@linux.intel.com
Cc: kbuild-all@lists.01.org, brendanhiggins@google.com,
	davidgow@google.com, linux-kernel@vger.kernel.org,
	kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org,
	skhan@linuxfoundation.org, Daniel Latypov <dlatypov@google.com>
Subject: Re: [PATCH v6] lib: add basic KUnit test for lib/math
Date: Sat, 17 Apr 2021 13:58:35 +0800	[thread overview]
Message-ID: <202104171338.s91up96i-lkp@intel.com> (raw)
In-Reply-To: <20210416180427.1545645-1-dlatypov@google.com>

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Hi Daniel,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on 7e25f40eab52c57ff6772d27d2aef3640a3237d7]

url:    https://github.com/0day-ci/linux/commits/Daniel-Latypov/lib-add-basic-KUnit-test-for-lib-math/20210417-020619
base:   7e25f40eab52c57ff6772d27d2aef3640a3237d7
config: powerpc-randconfig-c004-20210416 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/0day-ci/linux/commit/0f1888ffeaa6baa1bc2a99eac8ba7d1df29c8450
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Daniel-Latypov/lib-add-basic-KUnit-test-for-lib-math/20210417-020619
        git checkout 0f1888ffeaa6baa1bc2a99eac8ba7d1df29c8450
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   lib/math/math_kunit.c: In function 'abs_test':
>> lib/math/math_kunit.c:41:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=]
      41 | }
         | ^

vim +41 lib/math/math_kunit.c

    14	
    15	static void abs_test(struct kunit *test)
    16	{
    17		KUNIT_EXPECT_EQ(test, abs((char)0), (char)0);
    18		KUNIT_EXPECT_EQ(test, abs((char)42), (char)42);
    19		KUNIT_EXPECT_EQ(test, abs((char)-42), (char)42);
    20	
    21		/* The expression in the macro is actually promoted to an int. */
    22		KUNIT_EXPECT_EQ(test, abs((short)0),  0);
    23		KUNIT_EXPECT_EQ(test, abs((short)42),  42);
    24		KUNIT_EXPECT_EQ(test, abs((short)-42),  42);
    25	
    26		KUNIT_EXPECT_EQ(test, abs(0),  0);
    27		KUNIT_EXPECT_EQ(test, abs(42),  42);
    28		KUNIT_EXPECT_EQ(test, abs(-42),  42);
    29	
    30		KUNIT_EXPECT_EQ(test, abs(0L), 0L);
    31		KUNIT_EXPECT_EQ(test, abs(42L), 42L);
    32		KUNIT_EXPECT_EQ(test, abs(-42L), 42L);
    33	
    34		KUNIT_EXPECT_EQ(test, abs(0LL), 0LL);
    35		KUNIT_EXPECT_EQ(test, abs(42LL), 42LL);
    36		KUNIT_EXPECT_EQ(test, abs(-42LL), 42LL);
    37	
    38		/* Unsigned types get casted to signed. */
    39		KUNIT_EXPECT_EQ(test, abs(0ULL), 0LL);
    40		KUNIT_EXPECT_EQ(test, abs(42ULL), 42LL);
  > 41	}
    42	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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