Re: [PATCH] usb: rust: mark Device and Interface methods as inline
Alice Ryhl <[email protected]> Wed, 17 Jun 2026 07:35:13 +0000
| Newsgroups | dev.linux.lists.linux-kernel-mentees,org.kernel.vger.linux-kernel,org.kernel.vger.rust-for-linux |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Jun 16, 2026 at 07:36:06PM -0300, Nicolás Antinori wrote: > When building the kernel using llvm-19.1.7-rust-1.85.1-x86_64, the > following symbols are generated: > > $ nm vmlinux | grep ' _R'.*usb.*Device | rustfilt > ... > ffffffff823f2490 T <kernel::usb::Device as kernel::sync::aref::AlwaysRefCounted>::dec_ref > ffffffff823f2470 T <kernel::usb::Device as kernel::sync::aref::AlwaysRefCounted>::inc_ref > ... > > $ nm vmlinux | grep ' _R'.*usb.*Interface | rustfilt > ffffffff823f2450 T <kernel::usb::Interface as kernel::sync::aref::AlwaysRefCounted>::dec_ref > ffffffff823f2430 T <kernel::usb::Interface as kernel::sync::aref::AlwaysRefCounted>::inc_ref > ... > > However, these Rust symbols are trivial wrappers around the > `usb_get_dev`, `usb_put_dev`, `usb_get_intf` and `usb_put_intf` > functions. It doesn't make sense to go through a trivial wrapper > for these functions. > > Link: https://github.com/Rust-for-Linux/linux/issues/1145 > Suggested-by: Alice Ryhl <[email protected]> > Signed-off-by: Nicolás Antinori <[email protected]> Reviewed-by: Alice Ryhl <[email protected]>