linux/tools/include
Yonghong Song b0c9eb3781 bpf: Make bpf_link_info.iter similar to bpf_iter_link_info
bpf_link_info.iter is used by link_query to return bpf_iter_link_info
to user space. Fields may be different, e.g., map_fd vs. map_id, so
we cannot reuse the exact structure. But make them similar, e.g.,

  struct bpf_link_info {
     /* common fields */
     union {
	struct { ... } raw_tracepoint;
	struct { ... } tracing;
	...
	struct {
	    /* common fields for iter */
	    union {
		struct {
		    __u32 map_id;
		} map;
		/* other structs for other targets */
	    };
	};
    };
 };

so the structure is extensible the same way as bpf_iter_link_info.

Fixes: 6b0a249a30 ("bpf: Implement link_query for bpf iterators")
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Andrii Nakryiko <andriin@fb.com>
Link: https://lore.kernel.org/bpf/20200828051922.758950-1-yhs@fb.com
2020-08-28 14:33:24 +02:00
..
asm tools: Add missing stdio.h include to asm/bug.h header 2019-09-25 09:51:44 -03:00
asm-generic treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 36 2019-05-24 17:27:11 +02:00
linux bpf: Add BTF_SET_START/END macros 2020-08-25 15:37:41 -07:00
nolibc tool headers nolibc: add RISCV support 2019-05-08 15:48:43 +02:00
tools
trace/events
uapi bpf: Make bpf_link_info.iter similar to bpf_iter_link_info 2020-08-28 14:33:24 +02:00
vdso tools headers: Synchronize linux/bits.h with the kernel sources 2020-04-14 11:40:05 -03:00