Hi Johannes, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 46f4945e2b39dda4b832909434785483e028419d commit: 68f5d3f3b6543266b29e047cfaf9842333019b4c um: add PCI over virtio emulation driver date: 2 months ago config: um-allmodconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=68f5d3f3b6543266b29e047cfaf9842333019b4c git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 68f5d3f3b6543266b29e047cfaf9842333019b4c # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=um SHELL=/bin/bash drivers/gpu/drm/amd/amdkfd/ drivers/gpu/drm/amd/display/dc/gpio/ drivers/gpu/drm/r128/ drivers/gpu/drm/ttm/ drivers/infiniband/hw/qib/ drivers/infiniband/sw/rdmavt/ drivers/media/pci/cx88/ drivers/media/pci/ivtv/ drivers/net/ethernet/dec/tulip/ drivers/net/ethernet/natsemi/ drivers/net/ethernet/via/ drivers/pci/controller/ drivers/tty/ drivers/vfio/pci/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): >> drivers/tty/synclink_gt.c:442:13: error: conflicting types for 'set_signals' 442 | static void set_signals(struct slgt_info *info); | ^~~~~~~~~~~ In file included from include/linux/irqflags.h:16, from include/linux/spinlock.h:54, from include/linux/mmzone.h:8, from include/linux/gfp.h:6, from include/linux/umh.h:4, from include/linux/kmod.h:9, from include/linux/module.h:16, from drivers/tty/synclink_gt.c:46: arch/um/include/asm/irqflags.h:6:5: note: previous declaration of 'set_signals' was here 6 | int set_signals(int enable); | ^~~~~~~~~~~ -- from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:76: note: this is the location of the previous definition 76 | #define __P101 PAGE_READONLY | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:240: warning: "__P110" redefined 240 | #define __P110 PAGE_COPY_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:77: note: this is the location of the previous definition 77 | #define __P110 PAGE_COPY | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:241: warning: "__P111" redefined 241 | #define __P111 PAGE_COPY_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:78: note: this is the location of the previous definition 78 | #define __P111 PAGE_COPY | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:247: warning: "__S100" redefined 247 | #define __S100 PAGE_READONLY_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:84: note: this is the location of the previous definition 84 | #define __S100 PAGE_READONLY | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:248: warning: "__S101" redefined 248 | #define __S101 PAGE_READONLY_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:85: note: this is the location of the previous definition 85 | #define __S101 PAGE_READONLY | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:249: warning: "__S110" redefined 249 | #define __S110 PAGE_SHARED_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:86: note: this is the location of the previous definition 86 | #define __S110 PAGE_SHARED | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:250: warning: "__S111" redefined 250 | #define __S111 PAGE_SHARED_EXEC | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:87: note: this is the location of the previous definition 87 | #define __S111 PAGE_SHARED | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: >> arch/x86/include/asm/pgtable_64_types.h:21:34: error: conflicting types for 'pte_t' 21 | typedef struct { pteval_t pte; } pte_t; | ^~~~~ In file included from arch/um/include/asm/thread_info.h:15, from include/linux/thread_info.h:59, from include/asm-generic/current.h:5, from ./arch/um/include/generated/asm/current.h:1, from include/linux/mutex.h:14, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/pci.h:35, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/page.h:57:39: note: previous declaration of 'pte_t' was here 57 | typedef struct { unsigned long pte; } pte_t; | ^~~~~ In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:74: warning: "PGDIR_SHIFT" redefined 74 | #define PGDIR_SHIFT 39 | In file included from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable-3level.h:15: note: this is the location of the previous definition 15 | #define PGDIR_SHIFT 30 | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:83: warning: "PUD_SHIFT" redefined 83 | #define PUD_SHIFT 30 | In file included from arch/um/include/asm/pgtable-3level.h:10, from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: include/asm-generic/pgtable-nopud.h:18: note: this is the location of the previous definition 18 | #define PUD_SHIFT P4D_SHIFT | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:84: warning: "PTRS_PER_PUD" redefined 84 | #define PTRS_PER_PUD 512 | In file included from arch/um/include/asm/pgtable-3level.h:10, from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: include/asm-generic/pgtable-nopud.h:19: note: this is the location of the previous definition 19 | #define PTRS_PER_PUD 1 | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:98: warning: "PMD_SIZE" redefined 98 | #define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) | In file included from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable-3level.h:27: note: this is the location of the previous definition 27 | #define PMD_SIZE (1UL << PMD_SHIFT) | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:99: warning: "PMD_MASK" redefined 99 | #define PMD_MASK (~(PMD_SIZE - 1)) | In file included from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable-3level.h:28: note: this is the location of the previous definition -- In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:103: warning: "PGDIR_MASK" redefined 103 | #define PGDIR_MASK (~(PGDIR_SIZE - 1)) | In file included from arch/um/include/asm/pgtable.h:25, from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable-3level.h:20: note: this is the location of the previous definition 20 | #define PGDIR_MASK (~(PGDIR_SIZE-1)) | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:137: warning: "VMALLOC_START" redefined 137 | # define VMALLOC_START __VMALLOC_BASE_L4 | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:46: note: this is the location of the previous definition 46 | #define VMALLOC_START ((end_iomem + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1)) | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:142: warning: "VMALLOC_END" redefined 142 | #define VMALLOC_END (VMALLOC_START + (VMALLOC_SIZE_TB << 40) - 1) | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:48: note: this is the location of the previous definition 48 | #define VMALLOC_END (FIXADDR_START-2*PAGE_SIZE) | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:144: warning: "MODULES_VADDR" redefined 144 | #define MODULES_VADDR (__START_KERNEL_map + KERNEL_IMAGE_SIZE) | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:49: note: this is the location of the previous definition 49 | #define MODULES_VADDR VMALLOC_START | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:147: warning: "MODULES_END" redefined 147 | # define MODULES_END _AC(0xffffffffff000000, UL) | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:50: note: this is the location of the previous definition 50 | #define MODULES_END VMALLOC_END | In file included from arch/x86/include/asm/pgtable_types.h:266, from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_64_types.h:151: warning: "MODULES_LEN" redefined 151 | #define MODULES_LEN (MODULES_END - MODULES_VADDR) | In file included from include/linux/pgtable.h:6, from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/pgtable.h:51: note: this is the location of the previous definition 51 | #define MODULES_LEN (MODULES_VADDR - MODULES_END) | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: >> arch/x86/include/asm/pgtable_types.h:282:47: error: conflicting types for 'pgprot_t' 282 | typedef struct pgprot { pgprotval_t pgprot; } pgprot_t; | ^~~~~~~~ In file included from arch/um/include/asm/thread_info.h:15, from include/linux/thread_info.h:59, from include/asm-generic/current.h:5, from ./arch/um/include/generated/asm/current.h:1, from include/linux/mutex.h:14, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/pci.h:35, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/page.h:80:42: note: previous declaration of 'pgprot_t' was here 80 | typedef struct { unsigned long pgprot; } pgprot_t; | ^~~~~~~~ In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: >> arch/x86/include/asm/pgtable_types.h:284:34: error: conflicting types for 'pgd_t' 284 | typedef struct { pgdval_t pgd; } pgd_t; | ^~~~~ In file included from arch/um/include/asm/thread_info.h:15, from include/linux/thread_info.h:59, from include/asm-generic/current.h:5, from ./arch/um/include/generated/asm/current.h:1, from include/linux/mutex.h:14, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/pci.h:35, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/page.h:58:39: note: previous declaration of 'pgd_t' was here 58 | typedef struct { unsigned long pgd; } pgd_t; | ^~~~~ In file included from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: >> arch/x86/include/asm/pgtable_types.h:286:43: error: expected ')' before 'prot' 286 | static inline pgprot_t pgprot_nx(pgprot_t prot) | ^~~~ include/linux/pgtable.h:896:26: note: in definition of macro 'pgprot_nx' 896 | #define pgprot_nx(prot) (prot) | ^~~~ In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:290: warning: "pgprot_nx" redefined 290 | #define pgprot_nx pgprot_nx | In file included from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: include/linux/pgtable.h:896: note: this is the location of the previous definition 896 | #define pgprot_nx(prot) (prot) | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h: In function 'native_make_p4d': >> arch/x86/include/asm/pgtable_types.h:347:26: error: incompatible types when initializing type 'long unsigned int' using type 'pgd_t' {aka 'struct '} 347 | return (p4d_t) { .pgd = native_make_pgd((pgdval_t)val) }; | ^~~~~~~~~~~~~~~ arch/x86/include/asm/pgtable_types.h: In function 'native_p4d_val': >> arch/x86/include/asm/pgtable_types.h:352:27: error: incompatible type for argument 1 of 'native_pgd_val' 352 | return native_pgd_val(p4d.pgd); | ~~~^~~~ | | | pgd_t {aka struct } arch/x86/include/asm/pgtable_types.h:320:45: note: expected 'pgd_t' {aka 'struct '} but argument is of type 'pgd_t' {aka 'struct '} 320 | static inline pgdval_t native_pgd_val(pgd_t pgd) | ~~~~~~^~~ arch/x86/include/asm/pgtable_types.h: In function 'native_make_pud': arch/x86/include/asm/pgtable_types.h:373:30: error: incompatible types when initializing type 'long unsigned int' using type 'pgd_t' {aka 'struct '} 373 | return (pud_t) { .p4d.pgd = native_make_pgd(val) }; | ^~~~~~~~~~~~~~~ arch/x86/include/asm/pgtable_types.h: In function 'native_pud_val': arch/x86/include/asm/pgtable_types.h:378:31: error: incompatible type for argument 1 of 'native_pgd_val' 378 | return native_pgd_val(pud.p4d.pgd); | ~~~~~~~^~~~ | | | pgd_t {aka struct } arch/x86/include/asm/pgtable_types.h:320:45: note: expected 'pgd_t' {aka 'struct '} but argument is of type 'pgd_t' {aka 'struct '} 320 | static inline pgdval_t native_pgd_val(pgd_t pgd) | ~~~~~~^~~ arch/x86/include/asm/pgtable_types.h: At top level: >> arch/x86/include/asm/pgtable_types.h:383:34: error: conflicting types for 'pmd_t' 383 | typedef struct { pmdval_t pmd; } pmd_t; | ^~~~~ In file included from arch/um/include/asm/thread_info.h:15, from include/linux/thread_info.h:59, from include/asm-generic/current.h:5, from ./arch/um/include/generated/asm/current.h:1, from include/linux/mutex.h:14, from include/linux/kernfs.h:12, from include/linux/sysfs.h:16, from include/linux/kobject.h:20, from include/linux/pci.h:35, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: arch/um/include/asm/page.h:61:39: note: previous declaration of 'pmd_t' was here 61 | typedef struct { unsigned long pmd; } pmd_t; | ^~~~~ In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:514: warning: "pgprot_writecombine" redefined 514 | #define pgprot_writecombine pgprot_writecombine | In file included from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: include/linux/pgtable.h:904: note: this is the location of the previous definition 904 | #define pgprot_writecombine pgprot_noncached | In file included from arch/x86/include/asm/memtype.h:6, from arch/x86/include/asm/mtrr.h:27, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:41: arch/x86/include/asm/pgtable_types.h:517: warning: "pgprot_writethrough" redefined 517 | #define pgprot_writethrough pgprot_writethrough | In file included from include/linux/mm.h:33, from include/linux/scatterlist.h:8, from include/linux/dmapool.h:14, from include/linux/pci.h:1463, from drivers/infiniband/hw/qib/qib_wc_x86_64.c:40: include/linux/pgtable.h:908: note: this is the location of the previous definition 908 | #define pgprot_writethrough pgprot_noncached | drivers/infiniband/hw/qib/qib_wc_x86_64.c: In function 'qib_unordered_wc': >> drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:22: error: 'struct cpuinfo_um' has no member named 'x86_vendor' 149 | return boot_cpu_data.x86_vendor != X86_VENDOR_AMD; | ^ >> drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:37: error: 'X86_VENDOR_AMD' undeclared (first use in this function); did you mean 'X86_VENDOR_ANY'? 149 | return boot_cpu_data.x86_vendor != X86_VENDOR_AMD; | ^~~~~~~~~~~~~~ | X86_VENDOR_ANY drivers/infiniband/hw/qib/qib_wc_x86_64.c:149:37: note: each undeclared identifier is reported only once for each function it appears in drivers/infiniband/hw/qib/qib_wc_x86_64.c:150:1: error: control reaches end of non-void function [-Werror=return-type] 150 | } | ^ cc1: some warnings being treated as errors .. vim +29 arch/um/include/asm/delay.h 0bc8fb4dda2b46 Johannes Berg 2020-02-13 18 0bc8fb4dda2b46 Johannes Berg 2020-02-13 19 static inline void um_udelay(unsigned long usecs) 0bc8fb4dda2b46 Johannes Berg 2020-02-13 20 { 0bc8fb4dda2b46 Johannes Berg 2020-02-13 21 if (time_travel_mode == TT_MODE_INFCPU || 0bc8fb4dda2b46 Johannes Berg 2020-02-13 22 time_travel_mode == TT_MODE_EXTERNAL) { 0bc8fb4dda2b46 Johannes Berg 2020-02-13 23 time_travel_ndelay(1000 * usecs); 0bc8fb4dda2b46 Johannes Berg 2020-02-13 24 return; 0bc8fb4dda2b46 Johannes Berg 2020-02-13 25 } 0bc8fb4dda2b46 Johannes Berg 2020-02-13 26 udelay(usecs); 0bc8fb4dda2b46 Johannes Berg 2020-02-13 27 } 0bc8fb4dda2b46 Johannes Berg 2020-02-13 28 #undef udelay 0bc8fb4dda2b46 Johannes Berg 2020-02-13 @29 #define udelay um_udelay :::::: The code at line 29 was first introduced by commit :::::: 0bc8fb4dda2b461491ec567b2333d13897780d8c um: Implement ndelay/udelay in time-travel mode :::::: TO: Johannes Berg :::::: CC: Richard Weinberger --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org