linux-kernel - [PATCH v2 2/5] efi/cper: Export cper_mem_err

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Message-ID: <20230323213808.398039-3-terry.bowman@amd.com>
Date:   Thu, 23 Mar 2023 16:38:05 -0500
From:   Terry Bowman <terry.bowman@....com>
To:     <terry.bowman@....com>, <alison.schofield@...el.com>,
        <vishal.l.verma@...el.com>, <ira.weiny@...el.com>,
        <bwidawsk@...nel.org>, <dan.j.williams@...el.com>,
        <dave.jiang@...el.com>, <Jonathan.Cameron@...wei.com>,
        <linux-cxl@...r.kernel.org>, <rrichter@....com>
CC:     <linux-kernel@...r.kernel.org>, <bhelgaas@...gle.com>
Subject: [PATCH v2 2/5] efi/cper: Export cper_mem_err_unpack() for CXL logging

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@....com>
Cc: Ard Biesheuvel <ardb@...nel.org>
Cc: linux-efi@...r.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