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[SCSI] usb: transport - convert to accessors and !use_sg code path removal

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- This patch depends on:
    usb: transport.c use scsi_eh API in REQUEST_SENSE execution

  - Use scsi data accessors and remove of !use_sg code path.
  - New usb_stor_bulk_srb() for use by drivers

[jejb: updated with corrective fix.

had a bug in residual handling in the new usb_stor_bulk_srb()
function.  Found by Gabriel C. in -mm tree.

Tested-by: Gabriel C <nix.or.die@googlemail.com>
]

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: Matthew Dharm <mdharm-scsi@one-eyed-alien.net>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Boaz Harrosh
2007-09-10 18:01:08 +03:00
committed by James Bottomley
parent 4776e99ebb
commit 6d416e6173
2 changed files with 30 additions and 17 deletions
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2
drivers/usb/storage/transport.h
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@@ -139,6 +139,8 @@ extern int usb_stor_bulk_transfer_buf(struct us_data *us, unsigned int pipe,
void *buf, unsigned int length, unsigned int *act_len);
extern int usb_stor_bulk_transfer_sg(struct us_data *us, unsigned int pipe,
void *buf, unsigned int length, int use_sg, int *residual);
extern int usb_stor_bulk_srb(struct us_data* us, unsigned int pipe,
struct scsi_cmnd* srb);
extern int usb_stor_port_reset(struct us_data *us);
#endif