From: Mukul Joshi <mukul.joshi@amd.com>
Date: Sat, 27 Mar 2021 22:54:04 -0400
Subject: x86/MCE/AMD: Export smca_get_bank_type symbol
Git-commit: f38ce910d8dfb7da439d0578d4b97259168306cd
Patch-mainline: v5.16-rc1
References: jsc#SLE-19026

Export smca_get_bank_type for use in the AMD GPU
driver to determine MCA bank while handling correctable
and uncorrectable errors in GPU UMC.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 arch/x86/include/asm/mce.h    | 2 +-
 arch/x86/kernel/cpu/mce/amd.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index da9321548f6f..d69f716d8bc5 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -358,7 +358,7 @@ extern int mce_threshold_remove_device(unsigned int cpu);
 
 void mce_amd_feature_init(struct cpuinfo_x86 *c);
 int umc_normaddr_to_sysaddr(u64 norm_addr, u16 nid, u8 umc, u64 *sys_addr);
-
+enum smca_bank_types smca_get_bank_type(unsigned int bank);
 #else
 
 static inline int mce_threshold_create_device(unsigned int cpu)		{ return 0; };
diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index 08831acc1d03..1a2a90bd29e7 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -119,7 +119,7 @@ const char *smca_get_long_name(enum smca_bank_types t)
 }
 EXPORT_SYMBOL_GPL(smca_get_long_name);
 
-static enum smca_bank_types smca_get_bank_type(unsigned int bank)
+enum smca_bank_types smca_get_bank_type(unsigned int bank)
 {
 	struct smca_bank *b;
 
@@ -132,6 +132,7 @@ static enum smca_bank_types smca_get_bank_type(unsigned int bank)
 
 	return b->hwid->bank_type;
 }
+EXPORT_SYMBOL_GPL(smca_get_bank_type);
 
 static struct smca_hwid smca_hwid_mcatypes[] = {
 	/* { bank_type, hwid_mcatype } */