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| author | Yury Norov (NVIDIA) <yury.norov@gmail.com> | 2025-10-23 13:16:06 -0400 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2025-11-12 10:00:16 -0800 |
| commit | d99dc586ca7c7729450af2ed39ca1483c0eb7b5c (patch) | |
| tree | 133c77ad42df4f2eeac6ebb3c636ec93a774b411 /rust/helpers | |
| parent | 032a730268a3e88a1df1df1bafd9af64a460822e (diff) | |
| download | tip-d99dc586ca7c7729450af2ed39ca1483c0eb7b5c.tar.gz | |
uaccess: decouple INLINE_COPY_FROM_USER and CONFIG_RUST
Commit 1f9a8286bc0c ("uaccess: always export _copy_[from|to]_user with
CONFIG_RUST") exports _copy_{from,to}_user() unconditionally, if RUST is
enabled. This pollutes exported symbols namespace, and spreads RUST
ifdefery in core files.
It's better to declare a corresponding helper under the rust/helpers,
similarly to how non-underscored copy_{from,to}_user() is handled.
[yury.norov@gmail.com: drop rust part of comment for _copy_from_user(), per Alice]
Link: https://lkml.kernel.org/r/20251024154754.99768-1-yury.norov@gmail.com
Link: https://lkml.kernel.org/r/20251023171607.1171534-1-yury.norov@gmail.com
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Alice Ryhl <aliceryhl@google.com>
Cc: Alex Gaynor <alex.gaynor@gmail.com>
Cc: Andreas Hindborg <a.hindborg@kernel.org>
Cc: Björn Roy Baron <bjorn3_gh@protonmail.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: Danilo Krummrich <dakr@kernel.org>
Cc: Gary Guo <gary@garyguo.net>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Trevor Gross <tmgross@umich.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'rust/helpers')
| -rw-r--r-- | rust/helpers/uaccess.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/rust/helpers/uaccess.c b/rust/helpers/uaccess.c index f49076f813cd64..4629b2d15529ab 100644 --- a/rust/helpers/uaccess.c +++ b/rust/helpers/uaccess.c @@ -13,3 +13,15 @@ unsigned long rust_helper_copy_to_user(void __user *to, const void *from, { return copy_to_user(to, from, n); } + +#ifdef INLINE_COPY_FROM_USER +unsigned long rust_helper__copy_from_user(void *to, const void __user *from, unsigned long n) +{ + return _inline_copy_from_user(to, from, n); +} + +unsigned long rust_helper__copy_to_user(void __user *to, const void *from, unsigned long n) +{ + return _inline_copy_to_user(to, from, n); +} +#endif |