Commit 77c0208e authored by Kui-Feng Lee's avatar Kui-Feng Lee Committed by Martin KaFai Lau
Browse files

bpf: add btf pointer to struct bpf_ctx_arg_aux. 



Enable the providers to use types defined in a module instead of in the
kernel (btf_vmlinux).

Signed-off-by: default avatarKui-Feng Lee <thinker.li@gmail.com>
Link: https://lore.kernel.org/r/20240209023750.1153905-2-thinker.li@gmail.com


Signed-off-by: default avatarMartin KaFai Lau <martin.lau@kernel.org>
parent dc8543b5

include/linux/bpf.h

+1 −0
Original line number Diff line number Diff line
@@ -1415,6 +1415,7 @@ struct bpf_jit_poke_descriptor { 
struct bpf_ctx_arg_aux {

	u32 offset;

	enum bpf_reg_type reg_type;

	struct btf *btf;

	u32 btf_id;

};

kernel/bpf/btf.c

+1 −1
Original line number Diff line number Diff line
@@ -6266,7 +6266,7 @@ bool btf_ctx_access(int off, int size, enum bpf_access_type type, 
			}



			info->reg_type = ctx_arg_info->reg_type;

			info->btf = btf_vmlinux;

			info->btf = ctx_arg_info->btf ? : btf_vmlinux;

			info->btf_id = ctx_arg_info->btf_id;

			return true;

		}