Re: [PATCH 6.14 000/731] 6.14.2-rc1 review

[Greg Kroah-Hartman <gregkh@linuxfoundation.org>]

On Tue, Apr 08, 2025 at 03:16:31PM +0200, Thorsten Leemhuis wrote:
> On 08.04.25 12:38, Greg Kroah-Hartman wrote:
> > This is the start of the stable review cycle for the 6.14.2 release.
> > There are 731 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.
> 
> Compiling for Fedora failed for me:
> 
> 
> """
> error[E0412]: cannot find type `Core` in module `device`
>   --> rust/kernel/pci.rs:69:58
>    |
> 69 |         let pdev = unsafe { &*pdev.cast::<Device<device::Core>>() };
>    |                                                          ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/pci.rs:240:35
>     |
> 240 |     fn probe(dev: &Device<device::Core>, id_info: &Self::IdInfo) -> Result<Pin<KBox<Self>>>;
>     |                                   ^^^^ not found in `device`
> 
> error[E0405]: cannot find trait `DeviceContext` in module `device`
>    --> rust/kernel/pci.rs:253:32ich of
>     |
> 253 | pub struct Device<Ctx: device::DeviceContext = device::Normal>(
>     |                                ^^^^^^^^^^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Normal` in module `device`
>    --> rust/kernel/pci.rs:253:56
>     |
> 253 | pub struct Device<Ctx: device::DeviceCchangeontext = device::Normal>(
>     |                                                        ^^^^^^ not found in `device`
>     |
> help: there is an enum variant `core::intrinsics::mir::BasicBlock::Normal` and 1 other; try using the variant's enum
>     |
> 253 | pub struct Device<Ctx: device::DeviceContext = core::intrinsics::mir::BasicBlock>(
>     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 253 | pub struct Device<Ctx: device::DeviceContext = core::num::FpCategory>(
>     |                                                ~~~~~~~~~~~~~~~~~~~~~
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/pci.rs:411:21
>     |
> 411 | impl Device<device::Core> {
>     |                     ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/pci.rs:425:31
>     |
> 425 | impl Deref for Device<device::Core> {
>     |                               ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/pci.rs:439:27
>     |
> 439 | impl From<&Device<device::Core>> for ARef<Device> {
>     |                           ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/pci.rs:440:34
>     |
> 440 |     fn from(dev: &Device<device::Core>) -> Self {
>     |                                  ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>   --> rust/kernel/platform.rs:65:58
>    |
> 65 |         let pdev = unsafe { &*pdev.cast::<Device<device::Core>>() };
>    |                                                          ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/platform.rs:167:35
>     |
> 167 |     fn probe(dev: &Device<device::Core>, id_info: Option<&Self::IdInfo>)
>     |                                   ^^^^ not found in `device`
> 
> error[E0405]: cannot find trait `DeviceContext` in module `device`
>    --> rust/kernel/platform.rs:182:32
>     |
> 182 | pub struct Device<Ctx: device::DeviceContext = device::Normal>(
>     |                                ^^^^^^^^^^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Normal` in module `device`
>    --> rust/kernel/platform.rs:182:56
>     |
> 182 | pub struct Device<Ctx: device::DeviceContext = device::Normal>(
>     |                                                        ^^^^^^ not found in `device`
>     |
> help: there is an enum variant `core::intrinsics::mir::BasicBlock::Normal` and 1 other; try using the variant's enum
>     |
> 182 | pub struct Device<Ctx: device::DeviceContext = core::intrinsics::mir::BasicBlock>(
>     |                                                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> 182 | pub struct Device<Ctx: device::DeviceContext = core::num::FpCategory>(
>     |                                                ~~~~~~~~~~~~~~~~~~~~~
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/platform.rs:193:31
>     |
> 193 | impl Deref for Device<device::Core> {
>     |                               ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/platform.rs:207:27
>     |
> 207 | impl From<&Device<device::Core>> for ARef<Device> {
>     |                           ^^^^ not found in `device`
> 
> error[E0412]: cannot find type `Core` in module `device`
>    --> rust/kernel/platform.rs:208:34
>     |
> 208 |     fn from(dev: &Device<device::Core>) -> Self {
>     |                                  ^^^^ not found in `device`
> 
> error: aborting due to 15 previous errors
> 
> Some errors have detailed explanations: E0405, E0412.
> For more information about an error, try `rustc --explain E0405`.
> make[2]: *** [rust/Makefile:482: rust/kernel.o] Error 1
> make[1]: *** [/builddir/build/BUILD/kernel-6.14.2-build/kernel-6.14.2-rc1/linux-6.14.2-0.rc1.300.vanilla.fc42.x86_64/Makefile:1283: prepare] Error 2
> make: *** [Makefile:259: __sub-make] Error 2
> """
> 
> 
> >From a quick look there seem to be three changes in this set that touch
> rust/kernel/pci.rs; if needed, I can take a closer look later or tomorrow
> what exactly is causing trouble (I just hope it's no new build requirement
> missing on my side or something like that).

Hm,  odd, I thought I was testing Rust builds on my build system but
obviously not.  I'll go work on this later tonight...

thanks,

greg k-h