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IB/qib: Delete struct qib_ivdev.qp_rnd

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I was checking the field to see if it needed the full get_random_bytes()
and discovered it's unused.

Only compile-tested, as I don't have the hardware, but I'm still pretty
confident.

Link: https://lore.kernel.org/r/202003281643.02SGh6eG002694@sdf.org
Signed-off-by: George Spelvin <lkml@sdf.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
George Spelvin 2019-03-27 12:55:00 -04:00 committed by Jason Gunthorpe
parent d35dc58dd2
commit 3e87f43130
2 changed files with 0 additions and 3 deletions
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2
drivers/infiniband/hw/qib/qib_verbs.c
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@ -39,7 +39,6 @@
#include <linux/utsname.h>
#include <linux/rculist.h>
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/vmalloc.h>
#include <rdma/rdma_vt.h>
@ -1503,7 +1502,6 @@ int qib_register_ib_device(struct qib_devdata *dd)
unsigned i, ctxt;
int ret;
get_random_bytes(&dev->qp_rnd, sizeof(dev->qp_rnd));
for (i = 0; i < dd->num_pports; i++)
init_ibport(ppd + i);

1
drivers/infiniband/hw/qib/qib_verbs.h
View File

@ -177,7 +177,6 @@ struct qib_ibdev {
struct timer_list mem_timer;
struct qib_pio_header *pio_hdrs;
dma_addr_t pio_hdrs_phys;
u32 qp_rnd; /* random bytes for hash */
u32 n_piowait;
u32 n_txwait;