linux-kernel - Re: [PATCH 6.15 000/592] 6.15.4-rc1 review

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Message-ID: <a0ebb389-f088-417b-9fd4-ac8c100d206f@heusel.eu>
Date: Mon, 23 Jun 2025 15:50:45 +0200
From: Christian Heusel <christian@...sel.eu>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: stable@...r.kernel.org, patches@...ts.linux.dev, 
	linux-kernel@...r.kernel.org, torvalds@...ux-foundation.org, akpm@...ux-foundation.org, 
	linux@...ck-us.net, shuah@...nel.org, patches@...nelci.org, 
	lkft-triage@...ts.linaro.org, pavel@...x.de, jonathanh@...dia.com, f.fainelli@...il.com, 
	sudipm.mukherjee@...il.com, srw@...dewatkins.net, rwarsow@....de, conor@...nel.org, 
	hargar@...rosoft.com, broonie@...nel.org
Subject: Re: [PATCH 6.15 000/592] 6.15.4-rc1 review

On 25/06/23 02:59PM, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.15.4 release.
> There are 592 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Wed, 25 Jun 2025 13:05:55 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.15.4-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-6.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

Hey Greg,

this stable release candidate does not build for me as-is on x86:

error[E0432]: unresolved import `crate::sync::Completion`
  --> rust/kernel/devres.rs:16:22
   |
16 |     sync::{rcu, Arc, Completion},
   |                      ^^^^^^^^^^ no `Completion` in `sync`

error[E0412]: cannot find type `Bound` in this scope
   --> rust/kernel/devres.rs:226:49
    |
226 |     pub fn access<'a>(&'a self, dev: &'a Device<Bound>) -> Result<&'a T> {
    |                                                 ^^^^^ not found in this scope
    |
help: consider importing this enum
    |
8   + use core::range::Bound;
    |

error[E0107]: struct takes 0 generic arguments but 1 generic argument was supplied
   --> rust/kernel/devres.rs:226:42
    |
226 |     pub fn access<'a>(&'a self, dev: &'a Device<Bound>) -> Result<&'a T> {
    |                                          ^^^^^^------- help: remove the unnecessary generics
    |                                          |
    |                                          expected 0 generic arguments
    |
note: struct defined here, with 0 generic parameters
   --> rust/kernel/device.rs:45:12
    |
45  | pub struct Device(Opaque<bindings::device>);
    |            ^^^^^^

error[E0600]: cannot apply unary operator `!` to type `()`
   --> rust/kernel/devres.rs:172:12
    |
172 |         if !inner.data.revoke() {
    |            ^^^^^^^^^^^^^^^^^^^^ cannot apply unary operator `!`

error[E0599]: no method named `access` found for struct `Revocable` in the current scope
   --> rust/kernel/devres.rs:234:33
    |
234 |         Ok(unsafe { self.0.data.access() })
    |                                 ^^^^^^
    |
   ::: rust/kernel/revocable.rs:64:1
    |
64  | #[pin_data(PinnedDrop)]
    | ----------------------- method `access` not found for this struct
    |
help: there is a method `try_access` with a similar name
    |
234 |         Ok(unsafe { self.0.data.try_access() })
    |                                 ++++

error[E0599]: no method named `try_access_with` found for struct `Revocable` in the current scope
   --> rust/kernel/devres.rs:244:21
    |
244 |         self.0.data.try_access_with(f)
    |                     ^^^^^^^^^^^^^^^
    |
   ::: rust/kernel/revocable.rs:64:1
    |
64  | #[pin_data(PinnedDrop)]
    | ----------------------- method `try_access_with` not found for this struct
    |
help: there is a method `try_access` with a similar name, but with different arguments
   --> rust/kernel/revocable.rs:97:5
    |
97  |     pub fn try_access(&self) -> Option<RevocableGuard<'_, T>> {
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error[E0308]: mismatched types
   --> rust/kernel/devres.rs:257:21
    |
257 |         if unsafe { self.0.data.revoke_nosync() } {
    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `()`

error: aborting due to 7 previous errors

Some errors have detailed explanations: E0107, E0308, E0412, E0432, E0599, E0600.
For more information about an error, try `rustc --explain E0107`.
make[2]: *** [rust/Makefile:536: rust/kernel.o] Error 1
make[1]: *** [/build/linux/src/linux-6.15.3/Makefile:1280: prepare] Error 2
make: *** [Makefile:248: __sub-make] Error 2


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