Merge branch 'acpica' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux...

[cascardo/linux.git] / drivers / edac / edac_mce_amd.c

diff --git a/drivers/edac/edac_mce_amd.c b/drivers/edac/edac_mce_amd.c
index 713ed7d..689cc6a 100644 (file)
--- a/drivers/edac/edac_mce_amd.c
+++ b/drivers/edac/edac_mce_amd.c
@@ -3,7 +3,6 @@
 
 static bool report_gart_errors;
 static void (*nb_bus_decoder)(int node_id, struct err_regs *regs);
-static void (*orig_mce_callback)(struct mce *m);
 
 void amd_report_gart_errors(bool v)
 {
@@ -363,8 +362,10 @@ static inline void amd_decode_err_code(unsigned int ec)
                pr_warning("Huh? Unknown MCE error 0x%x\n", ec);
 }
 
-static void amd_decode_mce(struct mce *m)
+static int amd_decode_mce(struct notifier_block *nb, unsigned long val,
+                          void *data)
 {
+       struct mce *m = (struct mce *)data;
        struct err_regs regs;
        int node, ecc;
 
@@ -420,20 +421,22 @@ static void amd_decode_mce(struct mce *m)
        }
 
        amd_decode_err_code(m->status & 0xffff);
+
+       return NOTIFY_STOP;
 }
 
+static struct notifier_block amd_mce_dec_nb = {
+       .notifier_call  = amd_decode_mce,
+};
+
 static int __init mce_amd_init(void)
 {
        /*
         * We can decode MCEs for Opteron and later CPUs:
         */
        if ((boot_cpu_data.x86_vendor == X86_VENDOR_AMD) &&
-           (boot_cpu_data.x86 >= 0xf)) {
-               /* safe the default decode mce callback */
-               orig_mce_callback = x86_mce_decode_callback;
-
-               x86_mce_decode_callback = amd_decode_mce;
-       }
+           (boot_cpu_data.x86 >= 0xf))
+               atomic_notifier_chain_register(&x86_mce_decoder_chain, &amd_mce_dec_nb);
 
        return 0;
 }
@@ -442,7 +445,7 @@ early_initcall(mce_amd_init);
 #ifdef MODULE
 static void __exit mce_amd_exit(void)
 {
-       x86_mce_decode_callback = orig_mce_callback;
+       atomic_notifier_chain_unregister(&x86_mce_decoder_chain, &amd_mce_dec_nb);
 }
 
 MODULE_DESCRIPTION("AMD MCE decoder");