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| author | FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> | 2008-12-18 06:49:48 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-01-02 19:02:01 +0100 |
| commit | 1ac63cf5c05f956f52ab418a07f77d12328f3b5f (patch) | |
| tree | 4bcdf0a4f13e0cb6b54b13b612b024be9340d2b6 /drivers/scsi | |
| parent | [SCSI] st: simplify new_tape_buffer (diff) | |
| download | linux-1ac63cf5c05f956f52ab418a07f77d12328f3b5f.tar.xz linux-1ac63cf5c05f956f52ab418a07f77d12328f3b5f.zip | |
[SCSI] st: remove unused orig_frp_segs
orig_frp_segs in struct st_buffer is always zero. We don't need it.
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')
| -rw-r--r-- | drivers/scsi/st.c | 7 | ||||
| -rw-r--r-- | drivers/scsi/st.h | 1 |
2 files changed, 3 insertions, 5 deletions
diff --git a/drivers/scsi/st.c b/drivers/scsi/st.c index 22ddca891e17..50dbe14db37b 100644 --- a/drivers/scsi/st.c +++ b/drivers/scsi/st.c @@ -3749,7 +3749,7 @@ static struct st_buffer *new_tape_buffer(int need_dma, int max_sg) printk(KERN_NOTICE "st: Can't allocate new tape buffer.\n"); return NULL; } - tb->frp_segs = tb->orig_frp_segs = 0; + tb->frp_segs = 0; tb->use_sg = max_sg; tb->dma = need_dma; tb->buffer_size = 0; @@ -3839,11 +3839,11 @@ static void normalize_buffer(struct st_buffer * STbuffer) { int i, order = STbuffer->map_data.page_order; - for (i = STbuffer->orig_frp_segs; i < STbuffer->frp_segs; i++) { + for (i = 0; i < STbuffer->frp_segs; i++) { __free_pages(STbuffer->reserved_pages[i], order); STbuffer->buffer_size -= (PAGE_SIZE << order); } - STbuffer->frp_segs = STbuffer->orig_frp_segs; + STbuffer->frp_segs = 0; STbuffer->frp_sg_current = 0; STbuffer->sg_segs = 0; STbuffer->map_data.page_order = 0; @@ -4304,7 +4304,6 @@ static void scsi_tape_release(struct kref *kref) tpnt->device = NULL; if (tpnt->buffer) { - tpnt->buffer->orig_frp_segs = 0; normalize_buffer(tpnt->buffer); kfree(tpnt->buffer->reserved_pages); kfree(tpnt->buffer); diff --git a/drivers/scsi/st.h b/drivers/scsi/st.h index d29760776f42..e682f8045034 100644 --- a/drivers/scsi/st.h +++ b/drivers/scsi/st.h @@ -51,7 +51,6 @@ struct st_buffer { unsigned char *b_data; unsigned short use_sg; /* zero or max number of s/g segments for this adapter */ unsigned short sg_segs; /* number of segments in s/g list */ - unsigned short orig_frp_segs; /* number of segments allocated at first try */ unsigned short frp_segs; /* number of buffer segments */ unsigned int frp_sg_current; /* driver buffer length currently in s/g list */ }; |