Merge tag 'ras_for_3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp into...

Pull RAS updates from Borislav Petkov:

  "Nothing special this time, just an error messages improvement from Andy
   and a cleanup from me."

Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/arch/x86/kernel/cpu/mcheck/mce.c b/arch/x86/kernel/cpu/mcheck/mce.c
index d2c6116..4c5cd75 100644 (file)
--- a/arch/x86/kernel/cpu/mcheck/mce.c
+++ b/arch/x86/kernel/cpu/mcheck/mce.c
@@ -115,7 +115,7 @@ static void (*quirk_no_way_out)(int bank, struct mce *m, struct pt_regs *regs);
  * CPU/chipset specific EDAC code can register a notifier call here to print
  * MCE errors in a human-readable form.
  */
-ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain);
+static ATOMIC_NOTIFIER_HEAD(x86_mce_decoder_chain);
 
 /* Do initial initialization of a struct mce */
 void mce_setup(struct mce *m)
@@ -311,7 +311,7 @@ static void wait_for_panic(void)
        panic("Panicing machine check CPU died");
 }
 
-static void mce_panic(char *msg, struct mce *final, char *exp)
+static void mce_panic(const char *msg, struct mce *final, char *exp)
 {
        int i, apei_err = 0;
 
@@ -529,7 +529,7 @@ static void mce_schedule_work(void)
                schedule_work(this_cpu_ptr(&mce_work));
 }
 
-DEFINE_PER_CPU(struct irq_work, mce_irq_work);
+static DEFINE_PER_CPU(struct irq_work, mce_irq_work);
 
 static void mce_irq_work_cb(struct irq_work *entry)
 {
@@ -735,7 +735,7 @@ static atomic_t mce_callin;
 /*
  * Check if a timeout waiting for other CPUs happened.
  */
-static int mce_timed_out(u64 *t)
+static int mce_timed_out(u64 *t, const char *msg)
 {
        /*
         * The others already did panic for some reason.
@@ -750,8 +750,7 @@ static int mce_timed_out(u64 *t)
                goto out;
        if ((s64)*t < SPINUNIT) {
                if (mca_cfg.tolerant <= 1)
-                       mce_panic("Timeout synchronizing machine check over CPUs",
-                                 NULL, NULL);
+                       mce_panic(msg, NULL, NULL);
                cpu_missing = 1;
                return 1;
        }
@@ -867,7 +866,8 @@ static int mce_start(int *no_way_out)
         * Wait for everyone.
         */
        while (atomic_read(&mce_callin) != cpus) {
-               if (mce_timed_out(&timeout)) {
+               if (mce_timed_out(&timeout,
+                                 "Timeout: Not all CPUs entered broadcast exception handler")) {
                        atomic_set(&global_nwo, 0);
                        return -1;
                }
@@ -892,7 +892,8 @@ static int mce_start(int *no_way_out)
                 * only seen by one CPU before cleared, avoiding duplicates.
                 */
                while (atomic_read(&mce_executing) < order) {
-                       if (mce_timed_out(&timeout)) {
+                       if (mce_timed_out(&timeout,
+                                         "Timeout: Subject CPUs unable to finish machine check processing")) {
                                atomic_set(&global_nwo, 0);
                                return -1;
                        }
@@ -936,7 +937,8 @@ static int mce_end(int order)
                 * loops.
                 */
                while (atomic_read(&mce_executing) <= cpus) {
-                       if (mce_timed_out(&timeout))
+                       if (mce_timed_out(&timeout,
+                                         "Timeout: Monarch CPU unable to finish machine check processing"))
                                goto reset;
                        ndelay(SPINUNIT);
                }
@@ -949,7 +951,8 @@ static int mce_end(int order)
                 * Subject: Wait for Monarch to finish.
                 */
                while (atomic_read(&mce_executing) != 0) {
-                       if (mce_timed_out(&timeout))
+                       if (mce_timed_out(&timeout,
+                                         "Timeout: Monarch CPU did not finish machine check processing"))
                                goto reset;
                        ndelay(SPINUNIT);
                }
@@ -1009,7 +1012,7 @@ static void mce_clear_state(unsigned long *toclear)
  */
 #define        MCE_INFO_MAX    16
 
-struct mce_info {
+static struct mce_info {
        atomic_t                inuse;
        struct task_struct      *t;
        __u64                   paddr;