On 2/3/21 7:51 AM, Naresh Kamboju wrote:
Linux next tag 20210203 the mips and sh builds failed due to below errors. Following builds failed with gcc-8, gcc-9 and gcc-10,
- mips (cavium_octeon_defconfig)
- sh (defconfig)
- sh (shx3_defconfig)
make --silent --keep-going --jobs=8 O=/home/tuxbuild/.cache/tuxmake/builds/1/tmp ARCH=mips CROSS_COMPILE=mips-linux-gnu- 'CC=sccache mips-linux-gnu-gcc' 'HOSTCC=sccache gcc' uImage.gz In file included from arch/mips/include/asm/page.h:258, from arch/mips/include/asm/io.h:29, from include/linux/io.h:13, from arch/mips/include/asm/mips-cps.h:10, from arch/mips/include/asm/smp-ops.h:16, from arch/mips/include/asm/smp.h:21, from include/linux/smp.h:84, from arch/mips/include/asm/cpu-type.h:12, from arch/mips/include/asm/timex.h:19, from include/linux/timex.h:65, from include/linux/time32.h:13, from include/linux/time.h:60, from include/linux/compat.h:10, from arch/mips/kernel/asm-offsets.c:12: include/linux/mm.h: In function 'is_pinnable_page': include/asm-generic/memory_model.h:64:14: error: implicit declaration of function 'page_to_section'; did you mean 'present_section'? [-Werror=implicit-function-declaration] int __sec = page_to_section(__pg); \ ^~~~~~~~~~~~~~~ include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn' #define page_to_pfn __page_to_pfn ^~~~~~~~~~~~~ include/linux/mm.h:1135:15: note: in expansion of macro 'page_to_pfn' is_zero_pfn(page_to_pfn(page)); ^~~~~~~~~~~ In file included from arch/mips/kernel/asm-offsets.c:15: include/linux/mm.h: At top level: include/linux/mm.h:1512:29: error: conflicting types for 'page_to_section' static inline unsigned long page_to_section(const struct page *page) ^~~~~~~~~~~~~~~ Steps to reproduce:
# TuxMake is a command line tool and Python library that provides # portable and repeatable Linux kernel builds across a variety of # architectures, toolchains, kernel configurations, and make targets. # # TuxMake supports the concept of runtimes. # See https://docs.tuxmake.org/runtimes/, for that to work it requires # that you install podman or docker on your system. # # To install tuxmake on your system globally: # sudo pip3 install -U tuxmake # # See https://docs.tuxmake.org/ for complete documentation.
tuxmake --runtime podman --target-arch mips --toolchain gcc-10 --kconfig cavium_octeon_defconfig
Looks to me like this is due to <linux/mm.h>:
#if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP) #define SECTION_IN_PAGE_FLAGS #endif
with CONFIG_SPARSEMEM=y CONFIG_SPARSEMEM_EXTREME=y CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y # CONFIG_SPARSEMEM_VMEMMAP is not set
I'm still digging.