On Tue, Dec 01, 2020 at 05:32:51PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master > head: c6b11acc5f85b6e11d128fad8e0b7b223aa7e33f > commit: 07d13a1d6120d453c3c1f020578693d072deded5 [6272/9613] of: unittest: Add test for of_dma_get_max_cpu_address() > config: s390-randconfig-r034-20201201 (attached as .config) > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ac40a2d8f16b8a8c68fc811d67f647740e965cb8) > 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 > # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=07d13a1d6120d453c3c1f020578693d072deded5 > git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git > git fetch --no-tags linux-next master > git checkout 07d13a1d6120d453c3c1f020578693d072deded5 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=s390 > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@xxxxxxxxx> > > All errors (new ones prefixed by >>): > > s390x-linux-gnu-ld: kernel/dma/coherent.o: in function `dma_declare_coherent_memory': > coherent.c:(.text+0xf8): undefined reference to `memunmap' > s390x-linux-gnu-ld: kernel/dma/coherent.o: in function `dma_init_coherent_memory': > coherent.c:(.text+0x174): undefined reference to `memremap' > s390x-linux-gnu-ld: coherent.c:(.text+0x344): undefined reference to `memunmap' > s390x-linux-gnu-ld: drivers/of/unittest.o: in function `of_unittest': > >> unittest.c:(.init.text+0x120): undefined reference to `of_dma_get_max_cpu_address' Thanks for the report. I think it needs the diff below. If Rob/Nicolas are ok with it, I'll add it to the arm64 tree (with some commit text): diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 98cc0163301b..799125ef66fc 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -871,6 +871,7 @@ static void __init of_unittest_changeset(void) static void __init of_unittest_dma_get_max_cpu_address(void) { +#ifdef CONFIG_OF_ADDRESS struct device_node *np; phys_addr_t cpu_addr; @@ -884,6 +885,7 @@ static void __init of_unittest_dma_get_max_cpu_address(void) unittest(cpu_addr == 0x4fffffff, "of_dma_get_max_cpu_address: wrong CPU addr %pad (expecting %x)\n", &cpu_addr, 0x4fffffff); +#endif } static void __init of_unittest_dma_ranges_one(const char *path, -- Catalin
