diff options
| author | Hao Luo | 2021-12-16 16:31:45 -0800 |
|---|---|---|
| committer | Alexei Starovoitov | 2021-12-18 12:47:24 -0800 |
| commit | 48946bd6a5d695c50b34546864b79c1f910a33c1 (patch) | |
| tree | d3862adb9cf035077ed58618c807cd930e2d70d8 /kernel/bpf/prog_iter.c | |
| parent | d639b9d13a39cf15639cbe6e8b2c43eb60148a73 (diff) | |
bpf: Replace ARG_XXX_OR_NULL with ARG_XXX | PTR_MAYBE_NULL
We have introduced a new type to make bpf_arg composable, by
reserving high bits of bpf_arg to represent flags of a type.
One of the flags is PTR_MAYBE_NULL which indicates a pointer
may be NULL. When applying this flag to an arg_type, it means
the arg can take NULL pointer. This patch switches the
qualified arg_types to use this flag. The arg_types changed
in this patch include:
1. ARG_PTR_TO_MAP_VALUE_OR_NULL
2. ARG_PTR_TO_MEM_OR_NULL
3. ARG_PTR_TO_CTX_OR_NULL
4. ARG_PTR_TO_SOCKET_OR_NULL
5. ARG_PTR_TO_ALLOC_MEM_OR_NULL
6. ARG_PTR_TO_STACK_OR_NULL
This patch does not eliminate the use of these arg_types, instead
it makes them an alias to the 'ARG_XXX | PTR_MAYBE_NULL'.
Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211217003152.48334-3-haoluo@google.com
Diffstat (limited to 'kernel/bpf/prog_iter.c')
0 files changed, 0 insertions, 0 deletions