Messages in this thread | | | Date | Sun, 26 Dec 2021 13:20:52 +0800 | From | kernel test robot <> | Subject | [linux-stable-rc:queue/4.9 7215/9999] arch/powerpc/kernel/setup_64.c:763:6: error: no previous declaration for 'uaccess_flush_enable' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git queue/4.9 head: df4b9763cd1e19cb238b3ea65d3257f1e10357c3 commit: d67c5c60a4225d98e24381f2da8f449e50733e81 [7215/9999] powerpc/64s: flush L1D after user accesses config: powerpc64-allnoconfig (https://download.01.org/0day-ci/archive/20211226/202112261356.iId9eLe9-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 7.5.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=d67c5c60a4225d98e24381f2da8f449e50733e81 git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git git fetch --no-tags linux-stable-rc queue/4.9 git checkout d67c5c60a4225d98e24381f2da8f449e50733e81 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross O=build_dir ARCH=powerpc SHELL=/bin/bash
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
Note: the linux-stable-rc/queue/4.9 HEAD df4b9763cd1e19cb238b3ea65d3257f1e10357c3 builds fine. It only hurts bisectability.
All errors (new ones prefixed by >>):
In file included from arch/powerpc/include/asm/kup.h:10:0, from arch/powerpc/include/asm/uaccess.h:12, from include/asm-generic/termios-base.h:7, from arch/powerpc/include/asm/termios.h:20, from include/uapi/linux/termios.h:5, from include/linux/tty.h:6, from arch/powerpc/kernel/setup_64.c:27: arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: data definition has no type or storage class [-Werror] DECLARE_STATIC_KEY_FALSE(uaccess_flush_key); ^~~~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: type defaults to 'int' in declaration of 'DECLARE_STATIC_KEY_FALSE' [-Werror=implicit-int] arch/powerpc/include/asm/book3s/64/kup-radix.h:5:1: error: parameter names (without types) in function declaration [-Werror] arch/powerpc/include/asm/book3s/64/kup-radix.h: In function 'prevent_user_access': arch/powerpc/include/asm/book3s/64/kup-radix.h:18:6: error: implicit declaration of function 'static_branch_unlikely' [-Werror=implicit-function-declaration] if (static_branch_unlikely(&uaccess_flush_key)) ^~~~~~~~~~~~~~~~~~~~~~ arch/powerpc/include/asm/book3s/64/kup-radix.h:18:30: error: 'uaccess_flush_key' undeclared (first use in this function); did you mean 'do_uaccess_flush'? if (static_branch_unlikely(&uaccess_flush_key)) ^~~~~~~~~~~~~~~~~ do_uaccess_flush arch/powerpc/include/asm/book3s/64/kup-radix.h:18:30: note: each undeclared identifier is reported only once for each function it appears in In file included from arch/powerpc/include/asm/bug.h:127:0, from include/linux/bug.h:4, from include/linux/thread_info.h:11, from include/asm-generic/preempt.h:4, from ./arch/powerpc/include/generated/asm/preempt.h:1, from include/linux/preempt.h:59, from include/linux/spinlock.h:50, from include/linux/seqlock.h:35, from include/linux/time.h:5, from include/uapi/linux/timex.h:56, from include/linux/timex.h:56, from include/linux/sched.h:19, from arch/powerpc/kernel/setup_64.c:17: include/linux/dma-mapping.h: In function 'dma_map_resource': arch/powerpc/include/asm/page.h:129:32: error: comparison of unsigned expression >= 0 is always true [-Werror=type-limits] #define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && (pfn) < max_mapnr) ^ include/asm-generic/bug.h:155:36: note: in definition of macro 'BUG_ON' #define BUG_ON(condition) do { if (condition) BUG(); } while (0) ^~~~~~~~~ include/linux/dma-mapping.h:284:9: note: in expansion of macro 'pfn_valid' BUG_ON(pfn_valid(PHYS_PFN(phys_addr))); ^~~~~~~~~ arch/powerpc/kernel/setup_64.c: At top level: arch/powerpc/kernel/setup_64.c:281:13: error: no previous declaration for 'early_setup' [-Werror=missing-declarations] void __init early_setup(unsigned long dt_ptr) ^~~~~~~~~~~ arch/powerpc/kernel/setup_64.c:421:13: error: no previous declaration for 'initialize_cache_info' [-Werror=missing-declarations] void __init initialize_cache_info(void) ^~~~~~~~~~~~~~~~~~~~~ arch/powerpc/kernel/setup_64.c:514:13: error: no previous declaration for 'irqstack_early_init' [-Werror=missing-declarations] void __init irqstack_early_init(void) ^~~~~~~~~~~~~~~~~~~ arch/powerpc/kernel/setup_64.c:563:13: error: no previous declaration for 'emergency_stack_init' [-Werror=missing-declarations] void __init emergency_stack_init(void) ^~~~~~~~~~~~~~~~~~~~ arch/powerpc/kernel/setup_64.c:751:6: error: no previous declaration for 'entry_flush_enable' [-Werror=missing-declarations] void entry_flush_enable(bool enable) ^~~~~~~~~~~~~~~~~~ >> arch/powerpc/kernel/setup_64.c:763:6: error: no previous declaration for 'uaccess_flush_enable' [-Werror=missing-declarations] void uaccess_flush_enable(bool enable) ^~~~~~~~~~~~~~~~~~~~ In file included from include/linux/serial_8250.h:14:0, from arch/powerpc/kernel/setup_64.c:33: include/linux/serial_core.h:387:19: error: 'earlycon_init_is_deferred' defined but not used [-Werror=unused-const-variable=] static const bool earlycon_init_is_deferred; ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors
vim +/uaccess_flush_enable +763 arch/powerpc/kernel/setup_64.c
762 > 763 void uaccess_flush_enable(bool enable) 764 { 765 if (enable) { 766 do_uaccess_flush_fixups(enabled_flush_types); 767 static_branch_enable(&uaccess_flush_key); 768 on_each_cpu(do_nothing, NULL, 1); 769 } else { 770 static_branch_disable(&uaccess_flush_key); 771 do_uaccess_flush_fixups(L1D_FLUSH_NONE); 772 } 773 774 uaccess_flush = enable; 775 } 776
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