Messages in this thread | | | Subject | Re: drivers/clocksource/timer-riscv.c:28:16: error: implicit declaration of function 'get_cycles64' | From | Randy Dunlap <> | Date | Tue, 24 Nov 2020 13:13:07 -0800 |
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On 11/21/20 6:26 AM, kernel test robot wrote: > Hi Palmer, > > FYI, the error/warning still remains. > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master > head: 27bba9c532a8d21050b94224ffd310ad0058c353 > commit: d5be89a8d118a8e8d09cd74a921a808f17fbdd09 RISC-V: Resurrect the MMIO timer implementation for M-mode systems > date: 9 weeks ago > config: riscv-randconfig-r034-20201121 (attached as .config) > compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project bec968cbb367dd03439c89c1d4ef968ef662d7c0) > 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 > # install riscv cross compiling tool for clang build > # apt-get install binutils-riscv64-linux-gnu > # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d5be89a8d118a8e8d09cd74a921a808f17fbdd09 > git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git > git fetch --no-tags linus master > git checkout d5be89a8d118a8e8d09cd74a921a808f17fbdd09 > # save the attached .config to linux build tree > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=riscv > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All errors (new ones prefixed by >>):
CONFIG_RISCV_M_MODE=y
and that prevents get_cycles64() in arch/riscv/include/asm/timex.h from being visible.
I suppose that was intended?
>>> drivers/clocksource/timer-riscv.c:28:16: error: implicit declaration of function 'get_cycles64' [-Werror,-Wimplicit-function-declaration] > sbi_set_timer(get_cycles64() + delta); > ^ > drivers/clocksource/timer-riscv.c:28:16: note: did you mean 'get_cycles'? > arch/riscv/include/asm/timex.h:18:24: note: 'get_cycles' declared here > static inline cycles_t get_cycles(void) > ^ > drivers/clocksource/timer-riscv.c:47:9: error: implicit declaration of function 'get_cycles64' [-Werror,-Wimplicit-function-declaration] > return get_cycles64(); > ^ > drivers/clocksource/timer-riscv.c:52:9: error: implicit declaration of function 'get_cycles64' [-Werror,-Wimplicit-function-declaration] > return get_cycles64(); > ^ > 7 warnings and 3 errors generated. > > vim +/get_cycles64 +28 drivers/clocksource/timer-riscv.c >
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