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[SCSI] libfc: Add routine to copy data from a buffer to a SG list

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When handling the multi-frame responses of fc pass-thru requests,
a code segment similar to fc_fcp_recv_data (routine to receive
inbound SCSI data) is used in the response handler. This patch
is to add a routine, called fc_copy_buffer_to_sglist(), to handle
the common function of copying data from a buffer to a scatter-
gather list in order to avoid code duplication.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Robert Love
2009-11-03 11:47:28 -08:00
committed by James Bottomley
parent 07aac32834
commit 5868287460
3 changed files with 78 additions and 46 deletions
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8
drivers/scsi/libfc/fc_libfc.h
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@@ -101,4 +101,12 @@ void fc_destroy_fcp(void);
*/
const char *fc_els_resp_type(struct fc_frame *);
/*
* Copies a buffer into an sg list
*/
u32 fc_copy_buffer_to_sglist(void *buf, size_t len,
struct scatterlist *sg,
u32 *nents, size_t *offset,
enum km_type km_type, u32 *crc);
#endif /* _FC_LIBFC_H_ */