1 files changed, 26 insertions, 0 deletions

diff --git a/kernel/printk.c b/kernel/printk.c
index 70b4b94a0eca..73a96def4804 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -2851,6 +2851,28 @@ void kmsg_dump_rewind(struct kmsg_dumper *dumper)
 }
 EXPORT_SYMBOL_GPL(kmsg_dump_rewind);
 
+static char dump_stack_arch_desc_str[128];
+
+/**
+ * dump_stack_set_arch_desc - set arch-specific str to show with task dumps
+ * @fmt: printf-style format string
+ * @...: arguments for the format string
+ *
+ * The configured string will be printed right after utsname during task
+ * dumps.  Usually used to add arch-specific system identifiers.  If an
+ * arch wants to make use of such an ID string, it should initialize this
+ * as soon as possible during boot.
+ */
+void __init dump_stack_set_arch_desc(const char *fmt, ...)
+{
+        va_list args;
+
+        va_start(args, fmt);
+        vsnprintf(dump_stack_arch_desc_str, sizeof(dump_stack_arch_desc_str),
+                  fmt, args);
+        va_end(args);
+}
+
 /**
  * dump_stack_print_info - print generic debug info for dump_stack()
  * @log_lvl: log level
@@ -2865,6 +2887,10 @@ void dump_stack_print_info(const char *log_lvl)
                print_tainted(), init_utsname()->release,
                (int)strcspn(init_utsname()->version, " "),
                init_utsname()->version);
+
+        if (dump_stack_arch_desc_str[0] != '\0')
+                printk("%sHardware name: %s\n",
+                       log_lvl, dump_stack_arch_desc_str);
 }
 
 #endif