Re: drivers/dma-buf/udmabuf.o: warning: objtool: get_sg_table.isra.0+0x94: unreachable instruction

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On Sun, Jul 28, 2024 at 11:46:27PM +0800, kernel test robot wrote:
> tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
> head:   5437f30d3458ad36e83ab96088d490ebfee844d8
> commit: 0c8b91ef5100eaed3d64123ac91ac4739fccf15c udmabuf: add back support for mapping hugetlb pages
> date:   2 weeks ago
> config: loongarch-randconfig-r121-20240728 (https://download.01.org/0day-ci/archive/20240728/202407282344.RDPzYUGa-lkp@xxxxxxxxx/config)
> compiler: loongarch64-linux-gcc (GCC) 14.1.0
> reproduce: (https://download.01.org/0day-ci/archive/20240728/202407282344.RDPzYUGa-lkp@xxxxxxxxx/reproduce)
> 
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202407282344.RDPzYUGa-lkp@xxxxxxxxx/
> 
> All warnings (new ones prefixed by >>):

Sorry, kindly ignore this report, it's possibly related to the loongarch toolchain
as cerain "unreachable instruction" issues can't be reproduced on 13.2.

> 
> >> drivers/dma-buf/udmabuf.o: warning: objtool: get_sg_table.isra.0+0x94: unreachable instruction
> 
> 
> objdump-func vmlinux.o get_sg_table.isra.0:
> 
> -- 
> 0-DAY CI Kernel Test Service
> https://github.com/intel/lkp-tests/wiki
> 




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