Re: [PATCH v11 02/23] CXL/AER: Remove CONFIG_PCIEAER_CXL and replace with CONFIG_CXL_RAS

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On Tue, 26 Aug 2025 20:35:17 -0500
Terry Bowman <terry.bowman@xxxxxxx> wrote:

> CXL RAS compilation is enabled using CONFIG_CXL_RAS while the AER CXL logic
> uses CONFIG_PCIEAER_CXL. The 2 share the same dependencies and can be
> combined. The 2 kernel configs are unnecessary and are problematic for the
> user because of the duplication. Replace occurrences of CONFIG_PCIEAER_CXL
> to be CONFIG_CXL_RAS.
> 
> Update the CONFIG_CXL_RAS Kconfig definition to include dependencies 'PCIEAER
> && CXL_PCI' taken from the CONFIG_PCIEAER_CXL definition.
> 
> Remove the Kconfig CONFIG_PCIEAER_CXL definition.
> 
> Signed-off-by: Terry Bowman <terry.bowman@xxxxxxx>

Bjorn, do you mind having some code in PCIE land built depending on 
a config symbol from drivers/cxl?  Alternative to this would be to remove
the visible symbol (drop text after bool) and select it from
the CONFIG_CXL_RAS entry. 

> 
> ---
> Changes in v10 -> v11:
> - New patch
> ---
>  drivers/pci/pcie/Kconfig | 9 ---------
>  drivers/pci/pcie/aer.c   | 2 +-
>  2 files changed, 1 insertion(+), 10 deletions(-)
> 
> diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
> index 17919b99fa66..207c2deae35f 100644
> --- a/drivers/pci/pcie/Kconfig
> +++ b/drivers/pci/pcie/Kconfig
> @@ -49,15 +49,6 @@ config PCIEAER_INJECT
>  	  gotten from:
>  	     https://github.com/intel/aer-inject.git
>  
> -config PCIEAER_CXL
> -	bool "PCI Express CXL RAS support"
> -	default y
> -	depends on PCIEAER && CXL_PCI
> -	help
> -	  Enables CXL error handling.
> -
> -	  If unsure, say Y.
> -
>  #
>  # PCI Express ECRC
>  #
> diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
> index 70ac66188367..7fe9f883f5c5 100644
> --- a/drivers/pci/pcie/aer.c
> +++ b/drivers/pci/pcie/aer.c
> @@ -1086,7 +1086,7 @@ static bool find_source_device(struct pci_dev *parent,
>  	return true;
>  }
>  
> -#ifdef CONFIG_PCIEAER_CXL
> +#ifdef CONFIG_CXL_RAS
>  
>  /**
>   * pci_aer_unmask_internal_errors - unmask internal errors





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