diff options
| author | Alice Ryhl <aliceryhl@google.com> | 2025-06-23 13:57:27 +0000 |
|---|---|---|
| committer | Christian Brauner <brauner@kernel.org> | 2025-07-14 14:12:24 +0200 |
| commit | de747bd023c09b5b7f3bf5c952d7b1da77a9caaa (patch) | |
| tree | 821cb9111e8e85008ab87e8b551ffc0cafde1662 /rust/helpers/helpers.c | |
| parent | 19272b37aa4f83ca52bdf9c16d5d81bdd1354494 (diff) | |
poll: rust: allow poll_table ptrs to be null
It's possible for a poll_table to be null. This can happen if an
end-user just wants to know if a resource has events right now without
registering a waiter for when events become available. Furthermore,
these null pointers should be handled transparently by the API, so we
should not change `from_ptr` to return an `Option`. Thus, change
`PollTable` to wrap a raw pointer rather than use a reference so that
you can pass null.
Comments mentioning `struct poll_table` are changed to just `poll_table`
since `poll_table` is a typedef. (It's a typedef because it's supposed
to be opaque.)
Reviewed-by: Benno Lossin <lossin@kernel.org>
Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Diffstat (limited to 'rust/helpers/helpers.c')
| -rw-r--r-- | rust/helpers/helpers.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c index 0f1b5d115985..ff65073fe3a5 100644 --- a/rust/helpers/helpers.c +++ b/rust/helpers/helpers.c @@ -30,6 +30,7 @@ #include "platform.c" #include "pci.c" #include "pid_namespace.c" +#include "poll.c" #include "rbtree.c" #include "rcu.c" #include "refcount.c" |