mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-28 13:22:57 +00:00
Code Issues Releases Wiki Activity

IB/rdmavt: Correct warning during QPN allocation

Browse source 
Correct calculation of the low order bits which should be unset
based on use of qos_shift parameter when assigning QPN.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Brian Welty <brian.welty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Brian Welty 2016-06-09 07:51:20 -07:00 committed by Doug Ledford
parent 96605672a4
commit 501edc4244
1 changed files with 2 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

4
drivers/infiniband/sw/rdmavt/qp.c
View file

@ -369,8 +369,8 @@ static int alloc_qpn(struct rvt_dev_info *rdi, struct rvt_qpn_table *qpt,
/* wrap to first map page, invert bit 0 */
offset = qpt->incr | ((offset & 1) ^ 1);
}
/* there can be no bits at shift and below */
WARN_ON(offset & (rdi->dparms.qos_shift - 1));
/* there can be no set bits in low-order QoS bits */
WARN_ON(offset & (BIT(rdi->dparms.qos_shift) - 1));
qpn = mk_qpn(qpt, map, offset);
}