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| author | Stepan Moskovchenko <stepanm@codeaurora.org> | 2013-02-21 16:43:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-02-21 17:22:20 -0800 |
| commit | 7d7992108d02aa92ad4c77e5d9ce14088c942e75 (patch) | |
| tree | efa7e3cbbac8f7fde794f0062d98420b551697c6 /lib/vsprintf.c | |
| parent | f3cbd435b02fb45efc2c8a39c2ea19816669c412 (diff) | |
| download | lwn-7d7992108d02aa92ad4c77e5d9ce14088c942e75.tar.gz lwn-7d7992108d02aa92ad4c77e5d9ce14088c942e75.zip | |
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>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index fab33a9c5318..0d62fd700f68 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -1030,6 +1030,7 @@ int kptr_restrict __read_mostly; * 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 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr, 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) { |