From: Bartlomiej Zolnierkiewicz Subject: [PATCH] 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 Signed-off-by: Bartlomiej Zolnierkiewicz --- drivers/ide/ide-probe.c | 4 ++++ include/linux/ide.h | 5 +++++ 2 files changed, 9 insertions(+) Index: b/drivers/ide/ide-probe.c =================================================================== --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -129,6 +129,10 @@ static inline void do_identify (ide_driv drive->id_read = 1; local_irq_enable(); +#ifdef DEBUG + printk(KERN_INFO "%s: dumping identify data\n", drive->name); + ide_dump_identify((u8 *)id); +#endif ide_fix_driveid(id); #if defined (CONFIG_SCSI_EATA_PIO) || defined (CONFIG_SCSI_EATA) Index: b/include/linux/ide.h =================================================================== --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1291,6 +1291,11 @@ 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;