Messages in this thread | | | Subject | Re: [ammarfaizi2-block:bpf/bpf-next/pr/bpf-sysctl 1/1] kernel/bpf/syscall.c:4944:13: warning: no previous prototype for 'unpriv_ebpf_notify' | From | Daniel Borkmann <> | Date | Thu, 14 Apr 2022 00:51:17 +0200 |
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On 4/14/22 12:42 AM, kernel test robot wrote: > tree: https://github.com/ammarfaizi2/linux-block bpf/bpf-next/pr/bpf-sysctl > head: 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > commit: 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d [1/1] bpf: Move BPF sysctls from kernel/sysctl.c to BPF core > config: sh-buildonly-randconfig-r001-20220413 (https://download.01.org/0day-ci/archive/20220414/202204140614.Tt9e1fIt-lkp@intel.com/config) > compiler: sh4-linux-gcc (GCC) 11.2.0 > 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://github.com/ammarfaizi2/linux-block/commit/2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block > git fetch --no-tags ammarfaizi2-block bpf/bpf-next/pr/bpf-sysctl > git checkout 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sh SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot <lkp@intel.com> > > All error/warnings (new ones prefixed by >>): > > sh4-linux-ld: arch/sh/lib/mcount.o: in function `stack_panic': >>> (.text+0x50): undefined reference to `dump_stack' > -- >>> kernel/bpf/syscall.c:4944:13: warning: no previous prototype for 'unpriv_ebpf_notify' [-Wmissing-prototypes] > 4944 | void __weak unpriv_ebpf_notify(int new_state) > | ^~~~~~~~~~~~~~~~~~ > > > vim +/unpriv_ebpf_notify +4944 kernel/bpf/syscall.c > > 4943 >> 4944 void __weak unpriv_ebpf_notify(int new_state) > 4945 { > 4946 } > 4947 >
(Note that this is no different than the way it was before wrt prototype.)
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