Hi, It's probably a bug fix that unveils the link errors. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: af8c34ce6ae32addda3788d54a7e340cad22516b commit: 420520766a796d36076111139ba1e4fb1aadeadd [media] media: Kconfig: add dependency of HAS_DMA date: in the future config: m32r-allyesconfig (attached as .config) compiler: m32r-linux-gcc (GCC) 4.9.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 420520766a796d36076111139ba1e4fb1aadeadd # save the attached .config to linux build tree make.cross ARCH=m32r All errors (new ones prefixed by >>): drivers/built-in.o: In function `td_free': ohci-hcd.c:(.text+0x5f6cbc): undefined reference to `dma_pool_free' drivers/built-in.o: In function `ohci_endpoint_disable': ohci-hcd.c:(.text+0x5f7b28): undefined reference to `dma_pool_free' drivers/built-in.o: In function `td_alloc': ohci-hcd.c:(.text+0x5f7c40): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `ohci_stop': ohci-hcd.c:(.text+0x5f99e4): undefined reference to `dma_pool_destroy' ohci-hcd.c:(.text+0x5f99f4): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `ohci_setup': (.text+0x5f9c80): undefined reference to `dma_pool_create' drivers/built-in.o: In function `ohci_setup': (.text+0x5f9ca0): undefined reference to `dma_pool_create' drivers/built-in.o: In function `ohci_setup': (.text+0x5f9cb0): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `ohci_urb_enqueue': ohci-hcd.c:(.text+0x5fa6dc): undefined reference to `dma_pool_alloc' ohci-hcd.c:(.text+0x5fa728): undefined reference to `dma_pool_free' drivers/built-in.o: In function `ohci_platform_probe': ohci-platform.c:(.text+0x5fb1f8): undefined reference to `bad_dma_ops' ohci-platform.c:(.text+0x5fb200): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `xhci_gen_setup': (.text+0x5fd1e0): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `xhci_gen_setup': (.text+0x5fd1e8): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `scratchpad_alloc': xhci-mem.c:(.text+0x600ce0): undefined reference to `bad_dma_ops' drivers/built-in.o:xhci-mem.c:(.text+0x600ce8): more undefined references to `bad_dma_ops' follow drivers/built-in.o: In function `xhci_segment_free': xhci-mem.c:(.text+0x600b34): undefined reference to `dma_pool_free' drivers/built-in.o: In function `xhci_free_container_ctx': xhci-mem.c:(.text+0x600b70): undefined reference to `dma_pool_free' drivers/built-in.o: In function `xhci_segment_alloc': xhci-mem.c:(.text+0x600f74): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `xhci_alloc_container_ctx': xhci-mem.c:(.text+0x601130): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `xhci_alloc_stream_info': (.text+0x603490): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `xhci_free_stream_info': (.text+0x603740): undefined reference to `dma_pool_free' drivers/built-in.o: In function `xhci_mem_cleanup': (.text+0x603d28): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `xhci_mem_cleanup': (.text+0x603d48): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `xhci_mem_cleanup': (.text+0x603d68): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `xhci_mem_cleanup': (.text+0x603d88): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `xhci_mem_init': (.text+0x604160): undefined reference to `dma_pool_create' drivers/built-in.o: In function `xhci_mem_init': (.text+0x604180): undefined reference to `dma_pool_create' drivers/built-in.o: In function `xhci_mem_init': (.text+0x6041a8): undefined reference to `dma_pool_create' drivers/built-in.o: In function `xhci_mem_init': (.text+0x6041c8): undefined reference to `dma_pool_create' drivers/built-in.o: In function `xhci_plat_probe': xhci-plat.c:(.text+0x60e774): undefined reference to `bad_dma_ops' xhci-plat.c:(.text+0x60e77c): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `xhci_mtk_probe': xhci-mtk.c:(.text+0x60f390): undefined reference to `bad_dma_ops' xhci-mtk.c:(.text+0x60f394): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `fotg210_mem_cleanup': fotg210-hcd.c:(.text+0x61cbac): undefined reference to `bad_dma_ops' drivers/built-in.o:fotg210-hcd.c:(.text+0x61cbb0): more undefined references to `bad_dma_ops' follow drivers/built-in.o: In function `end_free_itds': fotg210-hcd.c:(.text+0x61c764): undefined reference to `dma_pool_free' drivers/built-in.o: In function `qh_destroy': fotg210-hcd.c:(.text+0x61c834): undefined reference to `dma_pool_free' fotg210-hcd.c:(.text+0x61c844): undefined reference to `dma_pool_free' drivers/built-in.o: In function `fotg210_qtd_alloc': fotg210-hcd.c:(.text+0x61c8b4): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `fotg210_qh_alloc': fotg210-hcd.c:(.text+0x61c938): undefined reference to `dma_pool_alloc' fotg210-hcd.c:(.text+0x61c9a8): undefined reference to `dma_pool_free' drivers/built-in.o: In function `fotg210_mem_cleanup': fotg210-hcd.c:(.text+0x61cb5c): undefined reference to `dma_pool_destroy' fotg210-hcd.c:(.text+0x61cb68): undefined reference to `dma_pool_destroy' fotg210-hcd.c:(.text+0x61cb74): undefined reference to `dma_pool_destroy' drivers/built-in.o: In function `qh_completions': fotg210-hcd.c:(.text+0x61d578): undefined reference to `dma_pool_free' fotg210-hcd.c:(.text+0x61da68): undefined reference to `dma_pool_free' drivers/built-in.o: In function `qtd_list_free.isra.36': fotg210-hcd.c:(.text+0x61e604): undefined reference to `dma_pool_free' drivers/built-in.o: In function `itd_submit': fotg210-hcd.c:(.text+0x61ef20): undefined reference to `dma_pool_alloc' drivers/built-in.o: In function `hcd_fotg210_init': fotg210-hcd.c:(.text+0x61f7e8): undefined reference to `dma_pool_create' fotg210-hcd.c:(.text+0x61f824): undefined reference to `dma_pool_create' fotg210-hcd.c:(.text+0x61f858): undefined reference to `dma_pool_create' drivers/built-in.o: In function `intel_th_populate.isra.3': core.c:(.text+0xdf56c0): undefined reference to `bad_dma_ops' core.c:(.text+0xdf56f0): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `msc_buffer_multi_free': msu.c:(.text+0xdf720c): undefined reference to `bad_dma_ops' msu.c:(.text+0xdf7210): undefined reference to `bad_dma_ops' drivers/built-in.o: In function `msc_buffer_alloc': msu.c:(.text+0xdf7a84): undefined reference to `bad_dma_ops' drivers/built-in.o:msu.c:(.text+0xdf7a8c): more undefined references to `bad_dma_ops' follow sound/built-in.o: In function `snd_pcm_lib_default_mmap': >> (.text+0xe9d0): undefined reference to `dma_common_mmap' sound/built-in.o: In function `atmel_pcm_preallocate_dma_buffer': >> atmel-pcm-pdc.c:(.text+0xf0104): undefined reference to `bad_dma_ops' atmel-pcm-pdc.c:(.text+0xf0108): undefined reference to `bad_dma_ops' sound/built-in.o: In function `atmel_pcm_new': atmel-pcm-pdc.c:(.text+0xf0190): undefined reference to `bad_dma_ops' atmel-pcm-pdc.c:(.text+0xf0198): undefined reference to `bad_dma_ops' sound/built-in.o: In function `atmel_pcm_free': atmel-pcm-pdc.c:(.text+0xf032c): undefined reference to `bad_dma_ops' sound/built-in.o:atmel-pcm-pdc.c:(.text+0xf0394): more undefined references to `bad_dma_ops' follow sound/built-in.o: In function `lpass_platform_pcmops_mmap': lpass-platform.c:(.text+0xffa54): undefined reference to `dma_common_mmap' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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