Re: [PATCH v3 2/6] efi/cper: Export cper_mem_err_unpack() for use by modules

[Jonathan Cameron]

On Tue, 11 Apr 2023 13:02:58 -0500
Terry Bowman <terry.bowman@xxxxxxx> wrote:

> The CXL driver plans to use cper_print_aer() for restricted CXL host (RCH)
> logging. This is not currently possible if CXL is built as a loadable
> module because cper_print_aer() depends on cper_mem_err_unpack() which
> is not exported.
> 
> Export cper_mem_err_unpack() to enable cper_print_aer() usage in
> CXL and other loadable modules.

No problem with the export, but I'm struggling to see the path that needs it.
Could you give a little more detail, perhaps a call path?

Thanks,

Jonathan

> 
> Signed-off-by: Terry Bowman <terry.bowman@xxxxxxx>
> Cc: Ard Biesheuvel <ardb@xxxxxxxxxx>
> Cc: linux-efi@xxxxxxxxxxxxxxx
> ---
>  drivers/firmware/efi/cper.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
> index 35c37f667781..ff15e12160ae 100644
> --- a/drivers/firmware/efi/cper.c
> +++ b/drivers/firmware/efi/cper.c
> @@ -350,6 +350,7 @@ const char *cper_mem_err_unpack(struct trace_seq *p,
>  
>  	return ret;
>  }
> +EXPORT_SYMBOL_GPL(cper_mem_err_unpack);
>  
>  static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem,
>  	int len)