[rppt:memblock/iterators-cleanup/v1 14/16] arch/riscv/mm/init.c:151:25: error: redeclaration of 'end' with no linkage

[rppt:memblock/iterators-cleanup/v1 14/16] arch/riscv/mm/init.c:151:25: error: redeclaration of 'end' with no linkage

[kernel test robot]

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Hi Mike,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/rppt/linux.git memblock/iterators-cleanup/v1
head:   ed81b9564b7ba7e732e412530a4c330e281bb3a5
commit: 846f1f1ba3c1483bc769b583f708fbfca8aa50d2 [14/16] arch, drivers: replace for_each_membock() with for_each_mem_range()
config: riscv-randconfig-r022-20200730 (attached as .config)
compiler: riscv32-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
        git checkout 846f1f1ba3c1483bc769b583f708fbfca8aa50d2
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 

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

All errors (new ones prefixed by >>):

   arch/riscv/mm/init.c: In function 'setup_bootmem':
>> arch/riscv/mm/init.c:151:25: error: redeclaration of 'end' with no linkage
     151 |  phys_addr_t mem_start, end = 0;
         |                         ^~~
   arch/riscv/mm/init.c:148:21: note: previous declaration of 'end' was here
     148 |  phys_addr_t start, end;
         |                     ^~~

vim +/end +151 arch/riscv/mm/init.c

922b0375fc93fb Albert Ou     2019-09-27  145  
0651c263c8e39f Anup Patel    2019-02-21  146  void __init setup_bootmem(void)
0651c263c8e39f Anup Patel    2019-02-21  147  {
846f1f1ba3c148 Mike Rapoport 2020-07-26  148  	phys_addr_t start, end;
0651c263c8e39f Anup Patel    2019-02-21  149  	phys_addr_t mem_size = 0;
fa5a198359053c Atish Patra   2020-07-15  150  	phys_addr_t total_mem = 0;
fa5a198359053c Atish Patra   2020-07-15 @151  	phys_addr_t mem_start, end = 0;
ac51e005fe1456 Zong Li       2020-01-02  152  	phys_addr_t vmlinux_end = __pa_symbol(&_end);
ac51e005fe1456 Zong Li       2020-01-02  153  	phys_addr_t vmlinux_start = __pa_symbol(&_start);
846f1f1ba3c148 Mike Rapoport 2020-07-26  154  	u64 i;
0651c263c8e39f Anup Patel    2019-02-21  155  
0651c263c8e39f Anup Patel    2019-02-21  156  	/* Find the memory region containing the kernel */
846f1f1ba3c148 Mike Rapoport 2020-07-26  157  	for_each_mem_range(i, &start, &end) {
846f1f1ba3c148 Mike Rapoport 2020-07-26  158  		phys_addr_t size = end - start;
fa5a198359053c Atish Patra   2020-07-15  159  		if (!total_mem)
846f1f1ba3c148 Mike Rapoport 2020-07-26  160  			mem_start = start;
846f1f1ba3c148 Mike Rapoport 2020-07-26  161  		if (start <= vmlinux_start && vmlinux_end <= end)
846f1f1ba3c148 Mike Rapoport 2020-07-26  162  			BUG_ON(size == 0);
846f1f1ba3c148 Mike Rapoport 2020-07-26  163  		total_mem = total_mem + size;
fa5a198359053c Atish Patra   2020-07-15  164  	}
f05badde4e20d2 Anup Patel    2019-04-05  165  
f05badde4e20d2 Anup Patel    2019-04-05  166  	/*
f05badde4e20d2 Anup Patel    2019-04-05  167  	 * Remove memblock from the end of usable area to the
f05badde4e20d2 Anup Patel    2019-04-05  168  	 * end of region
f05badde4e20d2 Anup Patel    2019-04-05  169  	 */
fa5a198359053c Atish Patra   2020-07-15  170  	mem_size = min(total_mem, (phys_addr_t)-PAGE_OFFSET);
fa5a198359053c Atish Patra   2020-07-15  171  	if (mem_start + mem_size < end)
fa5a198359053c Atish Patra   2020-07-15  172  		memblock_remove(mem_start + mem_size,
fa5a198359053c Atish Patra   2020-07-15  173  				end - mem_start - mem_size);
0651c263c8e39f Anup Patel    2019-02-21  174  
d90d45d7dcb732 Anup Patel    2019-06-07  175  	/* Reserve from the start of the kernel to the end of the kernel */
d90d45d7dcb732 Anup Patel    2019-06-07  176  	memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start);
d90d45d7dcb732 Anup Patel    2019-06-07  177  
c749bb2d554825 Vincent Chen  2020-04-27  178  	max_pfn = PFN_DOWN(memblock_end_of_DRAM());
c749bb2d554825 Vincent Chen  2020-04-27  179  	max_low_pfn = max_pfn;
d0d8aae64566b7 Atish Patra   2020-07-15  180  	set_max_mapnr(max_low_pfn);
0651c263c8e39f Anup Patel    2019-02-21  181  

:::::: The code@line 151 was first introduced by commit
:::::: fa5a198359053c8e21dcc2b39c0e13871059bc9f riscv: Parse all memory blocks to remove unusable memory

:::::: TO: Atish Patra <atish.patra@wdc.com>
:::::: CC: Palmer Dabbelt <palmerdabbelt@google.com>

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

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