Re: [linux-next:master] BUILD REGRESSION c503e3eec382ac708ee7adf874add37b77c5d312

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Dan Williams wrote:
> Bjorn Helgaas wrote:
> > On Tue, Oct 31, 2023 at 04:35:23AM +0800, kernel test robot wrote:
> > > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
> > > branch HEAD: c503e3eec382ac708ee7adf874add37b77c5d312  Add linux-next specific files for 20231030
> > > 
> > > Error/Warning reports:
> > > ... 
> > > https://lore.kernel.org/oe-kbuild-all/202310302206.Pkr5eBDi-lkp@xxxxxxxxx
> > 
> > > Error/Warning: (recently discovered and may have been fixed)
> > > 
> > > Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/iio/imu/bosch,bma400.yaml
> > > aarch64-linux-ld: drivers/cxl/core/pci.c:921:(.text+0xbbc): undefined reference to `pci_print_aer'
> > > ...
> > > arch/riscv/include/asm/mmio.h:67:(.text+0xd66): undefined reference to `pci_print_aer'
> > > csky-linux-ld: pci.c:(.text+0x6e8): undefined reference to `pci_print_aer'
> > > drivers/cxl/core/pci.c:921: undefined reference to `pci_print_aer'
> > > drivers/cxl/core/pci.c:921:(.text+0xbc0): undefined reference to `pci_print_aer'
> > > ...
> > > ld: drivers/cxl/core/pci.c:921: undefined reference to `pci_print_aer'
> > > loongarch64-linux-ld: drivers/cxl/core/pci.c:921:(.text+0xa38): undefined reference to `pci_print_aer'
> > > pci.c:(.text+0x662): undefined reference to `pci_print_aer'
> > > powerpc-linux-ld: pci.c:(.text+0xf10): undefined reference to `pci_print_aer'
> > > riscv64-linux-ld: pci.c:(.text+0x11ec): undefined reference to `pci_print_aer'
> > 
> > I have no idea about the above (and all the similar ones below); I
> > assume they all have to do with
> > https://lore.kernel.org/r/20231018171713.1883517-13-rrichter@xxxxxxx
> 
> Yes, I will get this fix folded into cxl/next:
> 
> diff --git a/include/linux/aer.h b/include/linux/aer.h
> index f6ea2f57d808..3db310c19ab7 100644
> --- a/include/linux/aer.h
> +++ b/include/linux/aer.h
> @@ -43,16 +43,20 @@ struct aer_capability_regs {
>  #if defined(CONFIG_PCIEAER)
>  int pci_aer_clear_nonfatal_status(struct pci_dev *dev);
>  int pcie_aer_is_native(struct pci_dev *dev);
> +void pci_print_aer(struct pci_dev *dev, int aer_severity,
> +                   struct aer_capability_regs *aer);
>  #else
>  static inline int pci_aer_clear_nonfatal_status(struct pci_dev *dev)
>  {
>         return -EINVAL;
>  }
>  static inline int pcie_aer_is_native(struct pci_dev *dev) { return 0; }
> +static inline void pci_print_aer(struct pci_dev *dev, int aer_severity,
> +                                struct aer_capability_regs *aer)
> +{
> +}
>  #endif
>  
> -void pci_print_aer(struct pci_dev *dev, int aer_severity,
> -                   struct aer_capability_regs *aer);
>  int cper_severity_to_aer(int cper_severity);
>  void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
>                        int severity, struct aer_capability_regs *aer_regs);

Actually, no this was my fault for inadvertantly including this patch in
the branch:

http://lore.kernel.org/r/653c7eb29265c_244c8f2944b@xxxxxxxxxxxxxxxxxxxxxxxxx.notmuch

...which had the desired effect, but at the cost of thrashing
linux-next. Apologies for that.




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