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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2008-12-18 14:49:44 +0900
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2009-01-02 12:00:27 -0600
commitb3376b4aaab4c348dfd2e0b7595dc12f64c9fac9 (patch)
tree07c2a3ba73e5f03d00bdea29fdc78aaf66a1096b /drivers/scsi/st.c
parent6620742f72d2fcf311e3fc8aa2476daa91fa3f31 (diff)
[SCSI] st: remove buf_to_sg
This removes unused buf_to_sg() that the non-dio path used. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Acked-by: Kai Makisara <Kai.Makisara@kolumbus.fi> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/st.c')
-rw-r--r--drivers/scsi/st.c29
1 files changed, 0 insertions, 29 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c
index fec5568c711a..ce1fd3ab243b 100644
--- a/drivers/scsi/st.c
+++ b/drivers/scsi/st.c
@@ -189,7 +189,6 @@ static void normalize_buffer(struct st_buffer *);
static int append_to_buffer(const char __user *, struct st_buffer *, int);
static int from_buffer(struct st_buffer *, char __user *, int);
static void move_buffer_data(struct st_buffer *, int);
-static void buf_to_sg(struct st_buffer *, unsigned int);
static int sgl_map_user_pages(struct st_buffer *, const unsigned int,
unsigned long, size_t, int);
@@ -554,8 +553,6 @@ st_do_scsi(struct st_request * SRpnt, struct scsi_tape * STp, unsigned char *cmd
mdata->nr_entries = STp->buffer->sg_segs;
mdata->pages = STp->buffer->mapped_pages;
} else {
- buf_to_sg(STp->buffer, bytes);
-
mdata->nr_entries =
DIV_ROUND_UP(bytes, PAGE_SIZE << mdata->page_order);
STp->buffer->map_data.pages = STp->buffer->reserved_pages;
@@ -3964,32 +3961,6 @@ static void move_buffer_data(struct st_buffer * st_bp, int offset)
}
}
-
-/* Fill the s/g list up to the length required for this transfer */
-static void buf_to_sg(struct st_buffer *STbp, unsigned int length)
-{
- int i;
- unsigned int count;
- struct scatterlist *sg;
- struct st_buf_fragment *frp;
-
- if (length == STbp->frp_sg_current)
- return; /* work already done */
-
- sg = &(STbp->sg[0]);
- frp = STbp->frp;
- for (i=count=0; count < length; i++) {
- if (length - count > frp[i].length)
- sg_set_page(&sg[i], frp[i].page, frp[i].length, 0);
- else
- sg_set_page(&sg[i], frp[i].page, length - count, 0);
- count += sg[i].length;
- }
- STbp->sg_segs = i;
- STbp->frp_sg_current = length;
-}
-
-
/* Validate the options from command line or module parameters */
static void validate_options(void)
{