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From: "Gao, Yunpeng" <yunpeng.gao@intel.com>
To: "linux-ia64@vger.kernel.org" <linux-ia64@vger.kernel.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: 
Date: Mon, 19 Jan 2009 10:54:02 +0800	[thread overview]
Message-ID: <38D9F46DFF92C54980D2F2C1E8EE31301FC5E7FB@pdsmsx503.ccr.corp.intel.com> (raw)

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. 

Thanks a lot.

Rgds,
Yunpeng Gao



             reply	other threads:[~2009-01-19  2:52 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-01-19  2:54 Gao, Yunpeng [this message]
2009-01-19  3:07 ` your mail Matthew Wilcox
2009-01-19  4:25 ` how to fix nand driver build breakage KOSAKI Motohiro
2009-01-19 11:46   ` Simon Holm Thøgersen

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