From: Boqun Feng <boqun.feng@gmail.com>
To: Alice Ryhl <aliceryhl@google.com>
Cc: "Miguel Ojeda" <ojeda@kernel.org>,
"Matthew Wilcox" <willy@infradead.org>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Kees Cook" <keescook@chromium.org>,
"Alex Gaynor" <alex.gaynor@gmail.com>,
"Wedson Almeida Filho" <wedsonaf@gmail.com>,
"Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <benno.lossin@proton.me>,
"Andreas Hindborg" <a.hindborg@samsung.com>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
"Arve Hjønnevåg" <arve@android.com>,
"Todd Kjos" <tkjos@android.com>,
"Martijn Coenen" <maco@android.com>,
"Joel Fernandes" <joel@joelfernandes.org>,
"Carlos Llamas" <cmllamas@google.com>,
"Suren Baghdasaryan" <surenb@google.com>,
"Arnd Bergmann" <arnd@arndb.de>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
rust-for-linux@vger.kernel.org,
"Christian Brauner" <brauner@kernel.org>
Subject: Re: [PATCH v3 2/4] uaccess: always export _copy_[from|to]_user with CONFIG_RUST
Date: Mon, 18 Mar 2024 14:16:17 -0700 [thread overview]
Message-ID: <ZfivIRxNmjaljsuP@boqun-archlinux> (raw)
In-Reply-To: <20240311-alice-mm-v3-2-cdf7b3a2049c@google.com>
On Mon, Mar 11, 2024 at 10:47:14AM +0000, Alice Ryhl wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> Rust code needs to be able to access _copy_from_user and _copy_to_user
> so that it can skip the check_copy_size check in cases where the length
> is known at compile-time, mirroring the logic for when C code will skip
> check_copy_size. To do this, we ensure that exported versions of these
> methods are available when CONFIG_RUST is enabled.
>
> Alice has verified that this patch passes the CONFIG_TEST_USER_COPY test
> on x86 using the Android cuttlefish emulator.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> Tested-by: Alice Ryhl <aliceryhl@google.com>
> Signed-off-by: Alice Ryhl <aliceryhl@google.com>
Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Regards,
Boqun
next prev parent reply other threads:[~2024-03-18 21:16 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-11 10:47 [PATCH v3 0/4] Memory management patches needed by Rust Binder Alice Ryhl
2024-03-11 10:47 ` [PATCH v3 1/4] rust: uaccess: add userspace pointers Alice Ryhl
2024-03-16 14:16 ` Benno Lossin
2024-03-18 18:59 ` Boqun Feng
2024-03-18 19:12 ` Alice Ryhl
2024-03-18 19:33 ` Boqun Feng
2024-03-18 20:10 ` Alice Ryhl
2024-03-18 21:07 ` Boqun Feng
2024-03-20 2:27 ` Boqun Feng
2024-03-20 18:39 ` Boqun Feng
2024-03-11 10:47 ` [PATCH v3 2/4] uaccess: always export _copy_[from|to]_user with CONFIG_RUST Alice Ryhl
2024-03-18 21:16 ` Boqun Feng [this message]
2024-03-11 10:47 ` [PATCH v3 3/4] rust: uaccess: add typed accessors for userspace pointers Alice Ryhl
2024-03-16 14:56 ` Benno Lossin
2024-03-19 19:32 ` Boqun Feng
2024-03-11 10:47 ` [PATCH v3 4/4] rust: add abstraction for `struct page` Alice Ryhl
2024-03-11 10:50 ` Alice Ryhl
2024-03-15 8:16 ` Andreas Hindborg
2024-03-16 15:30 ` Matthew Wilcox
2024-03-16 20:39 ` Benno Lossin
2024-03-20 8:46 ` Alice Ryhl
2024-03-21 13:15 ` Benno Lossin
2024-03-21 13:42 ` Alice Ryhl
2024-03-21 13:56 ` Benno Lossin
2024-03-21 14:11 ` Alice Ryhl
2024-03-21 14:16 ` Alice Ryhl
2024-03-21 14:19 ` Benno Lossin
2024-03-19 22:16 ` Boqun Feng
2024-03-19 22:28 ` Benno Lossin
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=ZfivIRxNmjaljsuP@boqun-archlinux \
--to=boqun.feng@gmail.com \
--cc=a.hindborg@samsung.com \
--cc=akpm@linux-foundation.org \
--cc=alex.gaynor@gmail.com \
--cc=aliceryhl@google.com \
--cc=arnd@arndb.de \
--cc=arve@android.com \
--cc=benno.lossin@proton.me \
--cc=bjorn3_gh@protonmail.com \
--cc=brauner@kernel.org \
--cc=cmllamas@google.com \
--cc=gary@garyguo.net \
--cc=gregkh@linuxfoundation.org \
--cc=joel@joelfernandes.org \
--cc=keescook@chromium.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=maco@android.com \
--cc=ojeda@kernel.org \
--cc=rust-for-linux@vger.kernel.org \
--cc=surenb@google.com \
--cc=tkjos@android.com \
--cc=viro@zeniv.linux.org.uk \
--cc=wedsonaf@gmail.com \
--cc=willy@infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.