[agd5f:amd-staging-drm-next 1241/1278] drivers/thunderbolt/test.c:799:2: error: call to undeclared function 'KUNIT_ASSERT_NULL'; ISO C99 and later do not support implicit function declarations

From: kernel test robot
Date: Sat Jul 30 2022 - 00:25:46 EST

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tree: https://gitlab.freedesktop.org/agd5f/linux.git amd-staging-drm-next
head: 2305916dca043ed69bd464f74a886b0216780aa6
commit: 53069c3922842db6f01ca9008e6a45d0fd3a083e [1241/1278] thunderbolt: test: use NULL macros
config: s390-randconfig-r044-20220729 (https://download.01.org/0day-ci/archive/20220730/202207301226.1DMFCdHt-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e)
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
# install s390 cross compiling tool for clang build
# apt-get install binutils-s390x-linux-gnu
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f amd-staging-drm-next
git checkout 53069c3922842db6f01ca9008e6a45d0fd3a083e
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

In file included from drivers/thunderbolt/test.c:12:
In file included from drivers/thunderbolt/tb.h:13:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:464:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __raw_readb(PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:477:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu'
#define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x))
^
include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16'
#define __swab16(x) (__u16)__builtin_bswap16((__u16)(x))
^
In file included from drivers/thunderbolt/test.c:12:
In file included from drivers/thunderbolt/tb.h:13:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:490:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr));
~~~~~~~~~~ ^
include/uapi/linux/byteorder/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu'
#define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x))
^
include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32'
#define __swab32(x) (__u32)__builtin_bswap32((__u32)(x))
^
In file included from drivers/thunderbolt/test.c:12:
In file included from drivers/thunderbolt/tb.h:13:
In file included from include/linux/pci.h:39:
In file included from include/linux/io.h:13:
In file included from arch/s390/include/asm/io.h:75:
include/asm-generic/io.h:501:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writeb(value, PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:511:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:521:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
__raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr);
~~~~~~~~~~ ^
include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
readsl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesb(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesw(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic]
writesl(PCI_IOBASE + addr, buffer, count);
~~~~~~~~~~ ^
>> drivers/thunderbolt/test.c:799:2: error: call to undeclared function 'KUNIT_ASSERT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NULL(test, path);
^
>> drivers/thunderbolt/test.c:850:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:912:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:992:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:1072:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:1164:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:1256:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, path);
^
drivers/thunderbolt/test.c:1300:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel1);
^
drivers/thunderbolt/test.c:1352:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1398:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1448:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1513:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1569:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel1);
^
drivers/thunderbolt/test.c:1631:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, dp_tunnel);
^
drivers/thunderbolt/test.c:1688:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1731:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1768:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1814:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
drivers/thunderbolt/test.c:1860:2: error: call to undeclared function 'KUNIT_ASSERT_NOT_NULL'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
KUNIT_ASSERT_NOT_NULL(test, tunnel);
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
12 warnings and 20 errors generated.

vim +/KUNIT_ASSERT_NULL +799 drivers/thunderbolt/test.c

783
784 static void tb_test_path_not_connected(struct kunit *test)
785 {
786 struct tb_switch *host, *dev1, *dev2;
787 struct tb_port *down, *up;
788 struct tb_path *path;
789
790 host = alloc_host(test);
791 dev1 = alloc_dev_default(test, host, 0x3, false);
792 /* Not connected to anything */
793 dev2 = alloc_dev_default(test, NULL, 0x303, false);
794
795 down = &dev1->ports[10];
796 up = &dev2->ports[9];
797
798 path = tb_path_alloc(NULL, down, 8, up, 8, 0, "PCIe Down");
> 799 KUNIT_ASSERT_NULL(test, path);
800 path = tb_path_alloc(NULL, down, 8, up, 8, 1, "PCIe Down");
801 KUNIT_ASSERT_NULL(test, path);
802 }
803
804 struct hop_expectation {
805 u64 route;
806 u8 in_port;
807 enum tb_port_type in_type;
808 u8 out_port;
809 enum tb_port_type out_type;
810 };
811
812 static void tb_test_path_not_bonded_lane0(struct kunit *test)
813 {
814 /*
815 * PCIe path from host to device using lane 0.
816 *
817 * [Host]
818 * 3 |: 4
819 * 1 |: 2
820 * [Device]
821 */
822 static const struct hop_expectation test_data[] = {
823 {
824 .route = 0x0,
825 .in_port = 9,
826 .in_type = TB_TYPE_PCIE_DOWN,
827 .out_port = 3,
828 .out_type = TB_TYPE_PORT,
829 },
830 {
831 .route = 0x3,
832 .in_port = 1,
833 .in_type = TB_TYPE_PORT,
834 .out_port = 9,
835 .out_type = TB_TYPE_PCIE_UP,
836 },
837 };
838 struct tb_switch *host, *dev;
839 struct tb_port *down, *up;
840 struct tb_path *path;
841 int i;
842
843 host = alloc_host(test);
844 dev = alloc_dev_default(test, host, 0x3, false);
845
846 down = &host->ports[9];
847 up = &dev->ports[9];
848
849 path = tb_path_alloc(NULL, down, 8, up, 8, 0, "PCIe Down");
> 850 KUNIT_ASSERT_NOT_NULL(test, path);
851 KUNIT_ASSERT_EQ(test, path->path_length, ARRAY_SIZE(test_data));
852 for (i = 0; i < ARRAY_SIZE(test_data); i++) {
853 const struct tb_port *in_port, *out_port;
854
855 in_port = path->hops[i].in_port;
856 out_port = path->hops[i].out_port;
857
858 KUNIT_EXPECT_EQ(test, tb_route(in_port->sw), test_data[i].route);
859 KUNIT_EXPECT_EQ(test, in_port->port, test_data[i].in_port);
860 KUNIT_EXPECT_EQ(test, (enum tb_port_type)in_port->config.type,
861 test_data[i].in_type);
862 KUNIT_EXPECT_EQ(test, tb_route(out_port->sw), test_data[i].route);
863 KUNIT_EXPECT_EQ(test, out_port->port, test_data[i].out_port);
864 KUNIT_EXPECT_EQ(test, (enum tb_port_type)out_port->config.type,
865 test_data[i].out_type);
866 }
867 tb_path_free(path);
868 }
869

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0-DAY CI Kernel Test Service
https://01.org/lkp

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