ide: add ide_dump_identify() debug helper

* Add ide_dump_identify() debug helper for dumping raw identify data in
  the hdparm friendly format (== the identify data can be extracted from
  dmesg output and passed to hdparm --Istdin).

* Dump identify data in ide-probe.c::do_identify() if DEBUG is enabled.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/ide.h b/include/linux/ide.h
index 7072c535f7cf..34542186fb15 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1288,6 +1288,11 @@ extern struct bus_type ide_bus_type;
 #define ide_id_has_flush_cache_ext(id)  \
         (((id)->cfs_enable_2 & 0x2400) == 0x2400)
 
+static inline void ide_dump_identify(u8 *id)
+{
+        print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0);
+}
+
 static inline int hwif_to_node(ide_hwif_t *hwif)
 {
         struct pci_dev *dev = hwif->pci_dev;