The CXL driver plans to use cper_print_aer() for restricted CXL host (RCH)
logging. This is not currently possible because CXL is a loadable module
and 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.

Signed-off-by: Terry Bowman <terry.bowman@amd.com>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: linux-efi@vger.kernel.org
---
 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)
-- 
2.34.1

Adding EFI reviewers.

https://lore.kernel.org/all/20230323213808.398039-1-terry.bowman@amd.com/

On 3/23/23 16:38, Terry Bowman wrote:
> |Ard Biesheuvel <ardb@kernel.org> Cc: linux-efi@vger.kernel.org |