x86/MCE/AMD: Export smca_get_bank_type symbol

mainline inclusion
from mainline-v5.16
commit f38ce910
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I5NGRU
CVE: NA

-------------------------------------------------

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: NMukul Joshi <mukul.joshi@amd.com>
Acked-by: NBorislav Petkov <bp@suse.de>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NXie Haocheng <haocheng.xie@amd.com>

arch/x86/include/asm/mce.h

@@ -359,7 +359,7 @@ 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; };

arch/x86/kernel/cpu/mce/amd.c

@@ -126,7 +126,7 @@ 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;
 
@@ -139,6 +139,7 @@ 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 } */