how to fix nand driver build breakage

[KOSAKI Motohiro]

> Hi all,
> 
> I have to use 64bit variable in my 2.6.27 kernel NAND driver as below:
> ---------------------------------------------------------------------------
> u64 NAND_capacity;
> unsigned int block_num, block_size;
> ...
> block_num = NAND_capacity / block_size;
> ---------------------------------------------------------------------------
> but it failed when compiling and reports 'undefined reference to `__udivdi3'.
> 
> Does any idea about this? I need to include some special head file or change something in Kconfig?
> 
> BTW, the environment is Fedora Core 9, gcc 4.3.0. 

Couldn't you use do_div()?



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