Re: [PATCH] swiotlb: Adjust SWIOTBL bounce buffer size for SEV guests.

[kbuild test robot]

Hi Ashish,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on hch-configfs/for-next]
[also build test ERROR on linus/master v5.4 next-20191202]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Ashish-Kalra/swiotlb-Adjust-SWIOTBL-bounce-buffer-size-for-SEV-guests/20191207-184151
base:   git://git.infradead.org/users/hch/configfs.git for-next
config: i386-tinyconfig (attached as .config)
compiler: gcc-7 (Debian 7.5.0-1) 7.5.0
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from arch/x86/kernel/pci-dma.c:2:0:
>> include/linux/dma-direct.h:49:1: error: expected identifier or '(' before '{' token
    {
    ^
   include/linux/dma-direct.h:47:29: warning: 'adjust_swiotlb_default_size' declared 'static' but never defined [-Wunused-function]
    static inline unsigned long adjust_swiotlb_default_size
                                ^~~~~~~~~~~~~~~~~~~~~~~~~~~

vim +49 include/linux/dma-direct.h

    43	
    44	#ifdef CONFIG_ARCH_HAS_ADJUST_SWIOTLB_DEFAULT
    45	unsigned long adjust_swiotlb_default_size(unsigned long default_size);
    46	#else
    47	static inline unsigned long adjust_swiotlb_default_size
    48			(unsigned long default_size);
  > 49	{
    50		return default_size;
    51	}
    52	#endif	/* CONFIG_ARCH_HAS_ADJUST_SWIOTLB_DEFAULT */
    53	

---
0-DAY kernel test infrastructure                 Open Source Technology Center
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