Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / lib / vsprintf.c

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 02bcdd5..bc0ac6b 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -433,7 +433,9 @@ char *symbol_string(char *buf, char *end, void *ptr,
        unsigned long value = (unsigned long) ptr;
 #ifdef CONFIG_KALLSYMS
        char sym[KSYM_SYMBOL_LEN];
-       if (ext != 'f' && ext != 's')
+       if (ext == 'B')
+               sprint_backtrace(sym, value);
+       else if (ext != 'f' && ext != 's')
                sprint_symbol(sym, value);
        else
                kallsyms_lookup(value, NULL, NULL, NULL, sym);
@@ -808,6 +810,7 @@ int kptr_restrict = 1;
  * - 'f' For simple symbolic function names without offset
  * - 'S' For symbolic direct pointers with offset
  * - 's' For symbolic direct pointers without offset
+ * - 'B' For backtraced symbolic direct pointers with offset
  * - 'R' For decoded struct resource, e.g., [mem 0x0-0x1f 64bit pref]
  * - 'r' For raw struct resource, e.g., [mem 0x0-0x1f flags 0x201]
  * - 'M' For a 6-byte MAC address, it prints the address in the
@@ -867,6 +870,7 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
                /* Fallthrough */
        case 'S':
        case 's':
+       case 'B':
                return symbol_string(buf, end, ptr, spec, *fmt);
        case 'R':
        case 'r':
@@ -1134,6 +1138,7 @@ qualifier:
  * %ps output the name of a text symbol without offset
  * %pF output the name of a function pointer with its offset
  * %pf output the name of a function pointer without its offset
+ * %pB output the name of a backtrace symbol with its offset
  * %pR output the address range in a struct resource with decoded flags
  * %pr output the address range in a struct resource with raw flags
  * %pM output a 6-byte MAC address with colons