Messages in this thread | | | Date | Tue, 23 Apr 2019 08:31:15 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH] riscv: Support non-coherency memory model |
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Hi,
I love your patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v5.1-rc6 next-20190418] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/guoren-kernel-org/riscv-Support-non-coherency-memory-model/20190423-075013 config: riscv-tinyconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 8.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.1.0 make.cross ARCH=riscv
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
arch/riscv/mm/dma-mapping.c: In function 'arch_dma_prep_coherent': >> arch/riscv/mm/dma-mapping.c:15:2: error: implicit declaration of function 'sbi_fence_dma' [-Werror=implicit-function-declaration] sbi_fence_dma(page_to_phys(page), size, DMA_BIDIRECTIONAL); ^~~~~~~~~~~~~ cc1: some warnings being treated as errors
vim +/sbi_fence_dma +15 arch/riscv/mm/dma-mapping.c
10 11 void arch_dma_prep_coherent(struct page *page, size_t size) 12 { 13 memset(page_address(page), 0, size); 14 > 15 sbi_fence_dma(page_to_phys(page), size, DMA_BIDIRECTIONAL); 16 } 17
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