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EDAC/mce_amd: Make fam_ops static global 

... and do not kmalloc a three-pointer struct. Which simplifies
mce_amd_init() a bit.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200116163403.GF27148@zn.tnic
This commit is contained in:
Borislav Petkov 2020-01-16 17:28:39 +01:00
parent dcd01394ce
commit 86e9f9d60e
1 changed files with 29 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/edac/mce_amd.c
View File

@ -6,7 +6,7 @@
#include "mce_amd.h"
static struct amd_decoder_ops *fam_ops;
static struct amd_decoder_ops fam_ops;
static u8 xec_mask = 0xf;
@ -583,7 +583,7 @@ static void decode_mc0_mce(struct mce *m)
: (xec ? "multimatch" : "parity")));
return;
}
} else if (fam_ops->mc0_mce(ec, xec))
} else if (fam_ops.mc0_mce(ec, xec))
;
else
pr_emerg(HW_ERR "Corrupted MC0 MCE info?\n");
@ -697,7 +697,7 @@ static void decode_mc1_mce(struct mce *m)
pr_cont("Hardware Assert.\n");
else
goto wrong_mc1_mce;
} else if (fam_ops->mc1_mce(ec, xec))
} else if (fam_ops.mc1_mce(ec, xec))
;
else
goto wrong_mc1_mce;
@ -831,7 +831,7 @@ static void decode_mc2_mce(struct mce *m)
pr_emerg(HW_ERR "MC2 Error: ");
if (!fam_ops->mc2_mce(ec, xec))
if (!fam_ops.mc2_mce(ec, xec))
pr_cont(HW_ERR "Corrupted MC2 MCE info?\n");
}
@ -1130,7 +1130,8 @@ amd_decode_mce(struct notifier_block *nb, unsigned long val, void *data)
if (m->tsc)
pr_emerg(HW_ERR "TSC: %llu\n", m->tsc);
if (!fam_ops)
/* Doesn't matter which member to test. */
if (!fam_ops.mc0_mce)
goto err_code;
switch (m->bank) {
@ -1185,10 +1186,6 @@ static int __init mce_amd_init(void)
c->x86_vendor != X86_VENDOR_HYGON)
return -ENODEV;
fam_ops = kzalloc(sizeof(struct amd_decoder_ops), GFP_KERNEL);
if (!fam_ops)
return -ENOMEM;
if (boot_cpu_has(X86_FEATURE_SMCA)) {
xec_mask = 0x3f;
goto out;
@ -1196,59 +1193,58 @@ static int __init mce_amd_init(void)
switch (c->x86) {
case 0xf:
fam_ops->mc0_mce = k8_mc0_mce;
fam_ops->mc1_mce = k8_mc1_mce;
fam_ops->mc2_mce = k8_mc2_mce;
fam_ops.mc0_mce = k8_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break;
case 0x10:
fam_ops->mc0_mce = f10h_mc0_mce;
fam_ops->mc1_mce = k8_mc1_mce;
fam_ops->mc2_mce = k8_mc2_mce;
fam_ops.mc0_mce = f10h_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break;
case 0x11:
fam_ops->mc0_mce = k8_mc0_mce;
fam_ops->mc1_mce = k8_mc1_mce;
fam_ops->mc2_mce = k8_mc2_mce;
fam_ops.mc0_mce = k8_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break;
case 0x12:
fam_ops->mc0_mce = f12h_mc0_mce;
fam_ops->mc1_mce = k8_mc1_mce;
fam_ops->mc2_mce = k8_mc2_mce;
fam_ops.mc0_mce = f12h_mc0_mce;
fam_ops.mc1_mce = k8_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break;
case 0x14:
fam_ops->mc0_mce = cat_mc0_mce;
fam_ops->mc1_mce = cat_mc1_mce;
fam_ops->mc2_mce = k8_mc2_mce;
fam_ops.mc0_mce = cat_mc0_mce;
fam_ops.mc1_mce = cat_mc1_mce;
fam_ops.mc2_mce = k8_mc2_mce;
break;
case 0x15:
xec_mask = c->x86_model == 0x60 ? 0x3f : 0x1f;
fam_ops->mc0_mce = f15h_mc0_mce;
fam_ops->mc1_mce = f15h_mc1_mce;
fam_ops->mc2_mce = f15h_mc2_mce;
fam_ops.mc0_mce = f15h_mc0_mce;
fam_ops.mc1_mce = f15h_mc1_mce;
fam_ops.mc2_mce = f15h_mc2_mce;
break;
case 0x16:
xec_mask = 0x1f;
fam_ops->mc0_mce = cat_mc0_mce;
fam_ops->mc1_mce = cat_mc1_mce;
fam_ops->mc2_mce = f16h_mc2_mce;
fam_ops.mc0_mce = cat_mc0_mce;
fam_ops.mc1_mce = cat_mc1_mce;
fam_ops.mc2_mce = f16h_mc2_mce;
break;
case 0x17:
case 0x18:
pr_warn("Decoding supported only on Scalable MCA processors.\n");
goto err_out;
break;
return -EINVAL;
default:
printk(KERN_WARNING "Huh? What family is it: 0x%x?!\n", c->x86);
goto err_out;
return -EINVAL;
}
out:
@ -1257,11 +1253,6 @@ out:
mce_register_decode_chain(&amd_mce_dec_nb);
return 0;
err_out:
kfree(fam_ops);
fam_ops = NULL;
return -EINVAL;
}
early_initcall(mce_amd_init);
@ -1269,7 +1260,6 @@ early_initcall(mce_amd_init);
static void __exit mce_amd_exit(void)
{
mce_unregister_decode_chain(&amd_mce_dec_nb);
kfree(fam_ops);
}
MODULE_DESCRIPTION("AMD MCE decoder");