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| author | Alan Stern <stern@rowland.harvard.edu> | 2008-11-20 14:22:18 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-01-07 09:59:57 -0800 |
| commit | 3dae5345311271fe598a61bd01f563fc835b4217 (patch) | |
| tree | 0342454943c439dd01760fb139fe04403a824fa5 /drivers/usb/storage | |
| parent | 64648a9dc4d7ac0189364188207310ec6bc75bbe (diff) | |
| download | lwn-3dae5345311271fe598a61bd01f563fc835b4217.tar.gz lwn-3dae5345311271fe598a61bd01f563fc835b4217.zip | |
USB: usb-storage: merge ATAPI and QIC-157 protocol routines
This patch (as1174) merges usb-storage's QIC-157 and ATAPI protocol
routines. Since the two functions are identical, there's no reason to
keep them separate.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/storage')
| -rw-r--r-- | drivers/usb/storage/protocol.c | 24 | ||||
| -rw-r--r-- | drivers/usb/storage/protocol.h | 3 | ||||
| -rw-r--r-- | drivers/usb/storage/usb.c | 6 |
3 files changed, 6 insertions, 27 deletions
diff --git a/drivers/usb/storage/protocol.c b/drivers/usb/storage/protocol.c index 3b3357e20ea7..be441d84bc64 100644 --- a/drivers/usb/storage/protocol.c +++ b/drivers/usb/storage/protocol.c @@ -56,9 +56,9 @@ * Protocol routines ***********************************************************************/ -void usb_stor_qic157_command(struct scsi_cmnd *srb, struct us_data *us) +void usb_stor_pad12_command(struct scsi_cmnd *srb, struct us_data *us) { - /* Pad the ATAPI command with zeros + /* Pad the SCSI command with zeros out to 12 bytes * * NOTE: This only works because a scsi_cmnd struct field contains * a unsigned char cmnd[16], so we know we have storage available @@ -73,26 +73,6 @@ void usb_stor_qic157_command(struct scsi_cmnd *srb, struct us_data *us) usb_stor_invoke_transport(srb, us); } -void usb_stor_ATAPI_command(struct scsi_cmnd *srb, struct us_data *us) -{ - /* Pad the ATAPI command with zeros - * - * NOTE: This only works because a scsi_cmnd struct field contains - * a unsigned char cmnd[16], so we know we have storage available - */ - - /* Pad the ATAPI command with zeros */ - for (; srb->cmd_len<12; srb->cmd_len++) - srb->cmnd[srb->cmd_len] = 0; - - /* set command length to 12 bytes */ - srb->cmd_len = 12; - - /* send the command to the transport layer */ - usb_stor_invoke_transport(srb, us); -} - - void usb_stor_ufi_command(struct scsi_cmnd *srb, struct us_data *us) { /* fix some commands -- this is a form of mode translation diff --git a/drivers/usb/storage/protocol.h b/drivers/usb/storage/protocol.h index 487056ffb516..ffc3e2af0156 100644 --- a/drivers/usb/storage/protocol.h +++ b/drivers/usb/storage/protocol.h @@ -40,8 +40,7 @@ #define _PROTOCOL_H_ /* Protocol handling routines */ -extern void usb_stor_ATAPI_command(struct scsi_cmnd*, struct us_data*); -extern void usb_stor_qic157_command(struct scsi_cmnd*, struct us_data*); +extern void usb_stor_pad12_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_ufi_command(struct scsi_cmnd*, struct us_data*); extern void usb_stor_transparent_scsi_command(struct scsi_cmnd*, struct us_data*); diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c index cdd009fae3cd..06c735703f4a 100644 --- a/drivers/usb/storage/usb.c +++ b/drivers/usb/storage/usb.c @@ -704,19 +704,19 @@ static int get_protocol(struct us_data *us) case US_SC_8020: us->protocol_name = "8020i"; - us->proto_handler = usb_stor_ATAPI_command; + us->proto_handler = usb_stor_pad12_command; us->max_lun = 0; break; case US_SC_QIC: us->protocol_name = "QIC-157"; - us->proto_handler = usb_stor_qic157_command; + us->proto_handler = usb_stor_pad12_command; us->max_lun = 0; break; case US_SC_8070: us->protocol_name = "8070i"; - us->proto_handler = usb_stor_ATAPI_command; + us->proto_handler = usb_stor_pad12_command; us->max_lun = 0; break; |