diff options
| author |   Hao Luo <haoluo@google.com> | 2021-12-16 16:31:48 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2021-12-18 13:27:41 -0800 |
| commit | 20b2aff4bc15bda809f994761d5719827d66c0b4 (patch) | |
| tree | 56ef53fccf3a9be91909c3dc2cd36068043acc68 /net/core/sock_map.c | |
| parent | bpf: Replace PTR_TO_XXX_OR_NULL with PTR_TO_XXX | PTR_MAYBE_NULL (diff) | |
| download | linux-dev-20b2aff4bc15bda809f994761d5719827d66c0b4.tar.xz linux-dev-20b2aff4bc15bda809f994761d5719827d66c0b4.zip | |
bpf: Introduce MEM_RDONLY flag
This patch introduce a flag MEM_RDONLY to tag a reg value
pointing to read-only memory. It makes the following changes:
1. PTR_TO_RDWR_BUF -> PTR_TO_BUF
2. PTR_TO_RDONLY_BUF -> PTR_TO_BUF | MEM_RDONLY
Signed-off-by: Hao Luo <haoluo@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20211217003152.48334-6-haoluo@google.com
Diffstat (limited to 'net/core/sock_map.c')
| -rw-r--r-- | net/core/sock_map.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/sock_map.c b/net/core/sock_map.c index 96d4ea7e6918..9618ab6d7cc9 100644 --- a/net/core/sock_map.c +++ b/net/core/sock_map.c @@ -1564,7 +1564,7 @@ static struct bpf_iter_reg sock_map_iter_reg = { .ctx_arg_info_size = 2, .ctx_arg_info = { { offsetof(struct bpf_iter__sockmap, key), - PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL }, + PTR_TO_BUF | PTR_MAYBE_NULL | MEM_RDONLY }, { offsetof(struct bpf_iter__sockmap, sk), PTR_TO_BTF_ID_OR_NULL }, }, |