Messages in this thread | | | Date | Sun, 19 Dec 2021 12:30:37 +0000 | From | Wei Liu <> | Subject | Re: [hyperv:hyperv-next 1/5] kernel/dma/swiotlb.c:166:7: warning: no previous prototype for 'swiotlb_mem_remap' |
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On Sat, Dec 18, 2021 at 12:03:07PM +0800, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git hyperv-next > head: 19fd7ca00201c0525452dcf5a490e4b01674ef4c > commit: 32be866293fe5355adbf91da1cd612f439fc71e5 [1/5] swiotlb: Add swiotlb bounce buffer remap function for HV IVM > config: x86_64-randconfig-r001-20211216 (https://download.01.org/0day-ci/archive/20211218/202112181114.Vxt6EAJR-lkp@intel.com/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/hyperv/linux.git/commit/?id=32be866293fe5355adbf91da1cd612f439fc71e5 > git remote add hyperv https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git > git fetch --no-tags hyperv hyperv-next > git checkout 32be866293fe5355adbf91da1cd612f439fc71e5 > # save the config file to linux build tree > mkdir build_dir > make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash kernel/dma/ > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All warnings (new ones prefixed by >>): > > >> kernel/dma/swiotlb.c:166:7: warning: no previous prototype for 'swiotlb_mem_remap' [-Wmissing-prototypes] > 166 | void *swiotlb_mem_remap(struct io_tlb_mem *mem, unsigned long bytes) > | ^~~~~~~~~~~~~~~~~ >
Adding static should fix this issue.
Wei.
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