wireguard-linux/rust, branch jd/bump-compilers

Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

2024-09-06T03:37:20Z

Cross-merge networking fixes after downstream PR. Conflicts: drivers/net/phy/phy_device.c 2560db6ede1a ("net: phy: Fix missing of_node_put() for leds") 1dce520abd46 ("net: phy: Use for_each_available_child_of_node_scoped()") https://lore.kernel.org/20240904115823.74333648@canb.auug.org.au Adjacent changes: drivers/net/ethernet/xilinx/xilinx_axienet.h drivers/net/ethernet/xilinx/xilinx_axienet_main.c 858430db28a5 ("net: xilinx: axienet: Fix race in axienet_stop") 76abb5d675c4 ("net: xilinx: axienet: Add statistics support") Signed-off-by: Jakub Kicinski

rust: macros: provide correct provenance when constructing THIS_MODULE

2024-09-02T07:14:28Z

Currently while defining `THIS_MODULE` symbol in `module!()`, the pointer used to construct `ThisModule` is derived from an immutable reference of `__this_module`, which means the pointer doesn't have the provenance for writing, and that means any write to that pointer is UB regardless of data races or not. However, the usage of `THIS_MODULE` includes passing this pointer to functions that may write to it (probably in unsafe code), and this will create soundness issues. One way to fix this is using `addr_of_mut!()` but that requires the unstable feature "const_mut_refs". So instead of `addr_of_mut()!`, an extern static `Opaque` is used here: since `Opaque` is transparent to `T`, an extern static `Opaque` will just wrap the C symbol (defined in a C compile unit) in an `Opaque`, which provides a pointer with writable provenance via `Opaque::get()`. This fix the potential UBs because of pointer provenance unmatched. Reported-by: Alice Ryhl Signed-off-by: Boqun Feng Reviewed-by: Alice Ryhl Reviewed-by: Trevor Gross Reviewed-by: Benno Lossin Reviewed-by: Gary Guo Closes: https://rust-for-linux.zulipchat.com/#narrow/stream/x/topic/x/near/465412664 Fixes: 1fbde52bde73 ("rust: add `macros` crate") Cc: stable@vger.kernel.org # 6.6.x: be2ca1e03965: ("rust: types: Make Opaque::get const") Link: https://lore.kernel.org/r/20240828180129.4046355-1-boqun.feng@gmail.com [ Fixed two typos, reworded title. - Miguel ] Signed-off-by: Miguel Ojeda

rust: net::phy unified genphy_read_status function for C22 and C45 registers

2024-08-30T09:27:35Z

Add unified genphy_read_status function for C22 and C45 registers. Instead of having genphy_c22 and genphy_c45 methods, this unifies genphy_read_status functions for C22 and C45. Reviewed-by: Trevor Gross Reviewed-by: Benno Lossin Reviewed-by: Andrew Lunn Signed-off-by: FUJITA Tomonori Signed-off-by: David S. Miller

rust: net::phy unified read/write API for C22 and C45 registers

2024-08-30T09:27:35Z

Add the unified read/write API for C22 and C45 registers. The abstractions support access to only C22 registers now. Instead of adding read/write_c45 methods specifically for C45, a new reg module supports the unified API to access C22 and C45 registers with trait, by calling an appropriate phylib functions. Reviewed-by: Trevor Gross Reviewed-by: Benno Lossin Reviewed-by: Andrew Lunn Signed-off-by: FUJITA Tomonori Signed-off-by: David S. Miller

rust: net::phy implement AsRef trait

2024-08-30T09:27:35Z

Implement AsRef trait for Device. A PHY driver needs a reference to device::Device to call the firmware API. Reviewed-by: Alice Ryhl Reviewed-by: Andrew Lunn Reviewed-by: Benno Lossin Reviewed-by: Trevor Gross Signed-off-by: FUJITA Tomonori Signed-off-by: David S. Miller

rust: net::phy support probe callback

2024-08-30T09:27:34Z

Support phy_driver probe callback, used to set up device-specific structures. Reviewed-by: Alice Ryhl Reviewed-by: Andrew Lunn Reviewed-by: Benno Lossin Reviewed-by: Trevor Gross Signed-off-by: FUJITA Tomonori Signed-off-by: David S. Miller

rust: sizes: add commonly used constants

2024-08-30T09:27:34Z

Add rust equivalent to include/linux/sizes.h, makes code more readable. Only SZ_*K that QT2025 PHY driver uses are added. Make generated constants accessible with a proper type. Reviewed-by: Alice Ryhl Reviewed-by: Andrew Lunn Reviewed-by: Benno Lossin Reviewed-by: Trevor Gross Signed-off-by: FUJITA Tomonori Signed-off-by: David S. Miller

rust: alloc: eschew `Box>::write`

2024-08-26T22:07:05Z

Upstream Rust's libs-api team has consensus for stabilizing some of `feature(new_uninit)`, but not for `Box>::write`. Instead, we can use `MaybeUninit::write`, so Rust for Linux can drop the feature after stabilization. That will happen after merging, as the FCP has completed [1]. This is required before stabilization because remaining-unstable API will be divided into new features. This code doesn't know about those yet. It can't: they haven't landed, as the relevant PR is blocked on rustc's CI testing Rust-for-Linux without this patch. [ The PR has landed [2] and will be released in Rust 1.82.0 (expected on 2024-10-17), so we could conditionally enable the new unstable feature (`box_uninit_write` [3]) instead, but just for a single `unsafe` block it is probably not worth it. For the time being, I added it to the "nice to have" section of our unstable features list. - Miguel ] Link: https://github.com/rust-lang/rust/issues/63291#issuecomment-2183022955 [1] Link: https://github.com/rust-lang/rust/pull/129416 [2] Link: https://github.com/rust-lang/rust/issues/129397 [3] Signed-off-by: Jubilee Young Reviewed-by: Alice Ryhl Reviewed-by: Trevor Gross [ Reworded slightly. - Miguel ] Signed-off-by: Miguel Ojeda

rust: kernel: fix typos in code comments

2024-08-21T11:29:36Z

Fix spelling mistakes in code comments. Signed-off-by: Michael Vetter Reviewed-by: Alice Ryhl Reviewed-by: Benno Lossin Link: https://lore.kernel.org/r/20240819205731.2163-1-jubalh@iodoru.org [ Reworded slightly. - Miguel ] Signed-off-by: Miguel Ojeda

rust: block: fix wrong usage of lockdep API

2024-08-21T11:28:13Z

When allocating `struct gendisk`, `GenDiskBuilder` is using a dynamic lock class key without registering the key. This is an incorrect use of the API, which causes a `WARN` trace. Fix the issue by using a static lock class key, which is more appropriate for the situation anyway. Fixes: 3253aba3408a ("rust: block: introduce `kernel::block::mq` module") Reported-by: Behme Dirk (XC-CP/ESB5) Closes: https://rust-for-linux.zulipchat.com/#narrow/stream/x/topic/x/near/457090036 Signed-off-by: Andreas Hindborg Reviewed-by: Benno Lossin Reviewed-by: Gary Guo Reviewed-by: Alice Ryhl Tested-by: Dirk Behme Link: https://lore.kernel.org/r/20240815074519.2684107-3-nmi@metaspace.dk [ Applied `rustfmt`, reworded slightly and made Zulip link a permalink. - Miguel ] Signed-off-by: Miguel Ojeda