[wsa:renesas/topic/i2c-core-dma 11/13] include/linux/i2c.h:777:36: error: implicit declaration of function 'object_is_on_stack'

[wsa:renesas/topic/i2c-core-dma 11/13] include/linux/i2c.h:777:36: error: implicit declaration of function 'object_is_on_stack'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git renesas/topic/i2c-core-dma
head:   12ce22166e7da632e9467c22be6014c36afa9a9c
commit: d624178d6427170c2c8cbbf92178332594580ffd [11/13] i2c: add helper to determine if DMA is favoured
config: i386-randconfig-x075-06041529 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        git checkout d624178d6427170c2c8cbbf92178332594580ffd
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   In file included from drivers/char/ipmi/ipmi_ssif.c:48:0:
   include/linux/i2c.h: In function 'i2c_check_msg_for_dma':
>> include/linux/i2c.h:777:36: error: implicit declaration of function 'object_is_on_stack' [-Werror=implicit-function-declaration]
     if (!virt_addr_valid(msg->buf) || object_is_on_stack(msg->buf)) {
                                       ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors

vim +/object_is_on_stack +777 include/linux/i2c.h

   771	static inline int i2c_check_msg_for_dma(struct i2c_msg *msg, unsigned int dma_threshold)
   772	{
   773		if (msg->len < dma_threshold)
   774			return -ERANGE;
   775	
   776	#if !defined(CONFIG_DMA_API_DEBUG)
 > 777		if (!virt_addr_valid(msg->buf) || object_is_on_stack(msg->buf)) {
   778			pr_debug("msg buffer to 0x%04x might not be DMA capable\n",
   779				 msg->addr);
   780			return -EFAULT;

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