../kernel/bpf/verifier.c:347:12: warning: symbol 'btf_vmlinux' was not declared. Should it be static? ../kernel/bpf/verifier.c:21807:38: error: subtraction of functions? Share your drugs ../kernel/bpf/verifier.c: note: in included file (through ../include/linux/bpf.h, ../include/linux/bpf-cgroup.h): ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../kernel/bpf/bpf_struct_ops.c:553:27: warning: symbol 'bpf_struct_ops_link_lops' was not declared. Should it be static? WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/staging/gpib/fmh_gpib/fmh_gpib.o ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static? ../kernel/bpf/bpf_struct_ops.c:563:27: warning: symbol 'bpf_struct_ops_link_lops' was not declared. Should it be static? ../kernel/bpf/verifier.c:347:12: warning: symbol 'btf_vmlinux' was not declared. Should it be static? ../kernel/bpf/verifier.c:21835:38: error: subtraction of functions? Share your drugs ../kernel/bpf/verifier.c: note: in included file (through ../include/linux/bpf.h, ../include/linux/bpf-cgroup.h): ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar ../include/linux/bpfptr.h:65:40: warning: cast to non-scalar ../include/linux/bpfptr.h:65:40: warning: cast from non-scalar WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/staging/gpib/fmh_gpib/fmh_gpib.o ../arch/x86/boot/version.c:18:12: warning: symbol 'kernel_version' was not declared. Should it be static?