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authorHao Luo <haoluo@google.com>2021-12-16 16:31:47 -0800
committerAlexei Starovoitov <ast@kernel.org>2021-12-18 13:27:23 -0800
commitc25b2ae136039ffa820c26138ed4a5e5f3ab3841 (patch)
treebfdb6805f2595026430786aab1bdda685143cc91 /net/core/sock_map.c
parent3c4807322660d4290ac9062c034aed6b87243861 (diff)
bpf: Replace PTR_TO_XXX_OR_NULL with PTR_TO_XXX | PTR_MAYBE_NULL
We have introduced a new type to make bpf_reg composable, by allocating bits in the type to represent flags. One of the flags is PTR_MAYBE_NULL which indicates a pointer may be NULL. This patch switches the qualified reg_types to use this flag. The reg_types changed in this patch include: 1. PTR_TO_MAP_VALUE_OR_NULL 2. PTR_TO_SOCKET_OR_NULL 3. PTR_TO_SOCK_COMMON_OR_NULL 4. PTR_TO_TCP_SOCK_OR_NULL 5. PTR_TO_BTF_ID_OR_NULL 6. PTR_TO_MEM_OR_NULL 7. PTR_TO_RDONLY_BUF_OR_NULL 8. PTR_TO_RDWR_BUF_OR_NULL Signed-off-by: Hao Luo <haoluo@google.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/r/20211217003152.48334-5-haoluo@google.com
Diffstat (limited to 'net/core/sock_map.c')
-rw-r--r--net/core/sock_map.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/sock_map.c b/net/core/sock_map.c
index 4ca4b11f4e5f..96d4ea7e6918 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_OR_NULL },
+ PTR_TO_RDONLY_BUF | PTR_MAYBE_NULL },
{ offsetof(struct bpf_iter__sockmap, sk),
PTR_TO_BTF_ID_OR_NULL },
},