On Sat, 12 Sep 2020 at 05:59, Martin KaFai Lau <ka...@fb.com> wrote: > > check_reg_type() checks whether a reg can be used as an arg of a > func_proto. For PTR_TO_BTF_ID, the check is actually not > completely done until the reg->btf_id is pointing to a > kernel struct that is acceptable by the func_proto. > > Thus, this patch moves the btf_id check into check_reg_type(). > The compatible_reg_types[] usage is localized in check_reg_type() > now which I found it easier to reason in the next patch. > > The "if (!btf_id) verbose(...); " is removed for now since it won't > happen. It will be added back in the next patch with new error log > specific to mis-configured compatible_reg_types[].
This is a nice idea, thanks. -- Lorenz Bauer | Systems Engineer 6th Floor, County Hall/The Riverside Building, SE1 7PB, UK www.cloudflare.com
