tree: git://anongit.freedesktop.org/drm/drm-misc for-linux-next head: 4dbafbd30aefcc1e56086875c5aa940490c0a9c3 commit: 4dbafbd30aefcc1e56086875c5aa940490c0a9c3 [1/1] drm/nouveu: fix swiotlb include config: alpha-allmodconfig (attached as .config) compiler: alpha-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 remote add drm-drm-misc git://anongit.freedesktop.org/drm/drm-misc git fetch --no-tags drm-drm-misc for-linux-next git checkout 4dbafbd30aefcc1e56086875c5aa940490c0a9c3 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): In file included from drivers/gpu/drm/nouveau/nouveau_ttm.c:26: include/linux/swiotlb.h: In function 'swiotlb_max_mapping_size': 98 | return SIZE_MAX; | ^~~~~~~~ include/linux/swiotlb.h:7:1: note: 'SIZE_MAX' is defined in header '<stdint.h>'; did you forget to '#include <stdint.h>'? 6 | #include <linux/init.h> +++ |+#include <stdint.h> 7 | #include <linux/types.h> include/linux/swiotlb.h:98:9: note: each undeclared identifier is reported only once for each function it appears in 98 | return SIZE_MAX; | ^~~~~~~~ vim +/SIZE_MAX +98 include/linux/swiotlb.h 55897af63091ebc Christoph Hellwig 2018-12-03 78 55897af63091ebc Christoph Hellwig 2018-12-03 79 void __init swiotlb_exit(void); 7453c549f5f6485 Konrad Rzeszutek Wilk 2016-12-20 80 unsigned int swiotlb_max_segment(void); abe420bfae528c9 Joerg Roedel 2019-02-07 81 size_t swiotlb_max_mapping_size(struct device *dev); 492366f7b423725 Joerg Roedel 2019-02-07 82 bool is_swiotlb_active(void); 5740afdb68abadc FUJITA Tomonori 2009-11-10 83 #else 55897af63091ebc Christoph Hellwig 2018-12-03 84 #define swiotlb_force SWIOTLB_NO_FORCE 55897af63091ebc Christoph Hellwig 2018-12-03 85 static inline bool is_swiotlb_buffer(phys_addr_t paddr) 55897af63091ebc Christoph Hellwig 2018-12-03 86 { 55897af63091ebc Christoph Hellwig 2018-12-03 87 return false; 55897af63091ebc Christoph Hellwig 2018-12-03 88 } 55897af63091ebc Christoph Hellwig 2018-12-03 89 static inline void swiotlb_exit(void) 55897af63091ebc Christoph Hellwig 2018-12-03 90 { 55897af63091ebc Christoph Hellwig 2018-12-03 91 } 55897af63091ebc Christoph Hellwig 2018-12-03 92 static inline unsigned int swiotlb_max_segment(void) 55897af63091ebc Christoph Hellwig 2018-12-03 93 { 55897af63091ebc Christoph Hellwig 2018-12-03 94 return 0; 55897af63091ebc Christoph Hellwig 2018-12-03 95 } abe420bfae528c9 Joerg Roedel 2019-02-07 96 static inline size_t swiotlb_max_mapping_size(struct device *dev) abe420bfae528c9 Joerg Roedel 2019-02-07 97 { abe420bfae528c9 Joerg Roedel 2019-02-07 @98 return SIZE_MAX; abe420bfae528c9 Joerg Roedel 2019-02-07 99 } 492366f7b423725 Joerg Roedel 2019-02-07 100 :::::: The code at line 98 was first introduced by commit :::::: abe420bfae528c92bd8cc5ecb62dc95672b1fd6f swiotlb: Introduce swiotlb_max_mapping_size() :::::: TO: Joerg Roedel <jroedel(a)suse.de&gt; :::::: CC: Michael S. Tsirkin <mst(a)redhat.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org