lib/vsprintf.c: add %pa format specifier for phys_addr_t types
Add the %pa format specifier for printing a phys_addr_t type and its
derivative types (such as resource_size_t), since the physical address
size on some platforms can vary based on build options, regardless of
the native integer type.
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>
Cc: Rob Landley <rob@landley.net>
Cc: George Spelvin <linux@horizon.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index fab33a9..0d62fd7 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1030,6 +1030,7 @@
* N no separator
* The maximum supported length is 64 bytes of the input. Consider
* to use print_hex_dump() for the larger input.
+ * - 'a' For a phys_addr_t type and its derivative types (passed by reference)
*
* Note: The difference between 'S' and 'F' is that on ia64 and ppc64
* function pointers are really function descriptors, which contain a
@@ -1120,6 +1121,12 @@
return netdev_feature_string(buf, end, ptr, spec);
}
break;
+ case 'a':
+ spec.flags |= SPECIAL | SMALL | ZEROPAD;
+ spec.field_width = sizeof(phys_addr_t) * 2 + 2;
+ spec.base = 16;
+ return number(buf, end,
+ (unsigned long long) *((phys_addr_t *)ptr), spec);
}
spec.flags |= SMALL;
if (spec.field_width == -1) {