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authorIngo Molnar <mingo@elte.hu>2008-08-25 14:39:12 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-25 14:39:12 +0200
commitf58899bb0224741eb0409ada67ecafe90ba137ef (patch)
tree78284f77021e830b32e77071dd2ef4e5ccdaa289 /drivers/infiniband/hw/ipath/ipath_ud.c
parenta2bd7274b47124d2fc4dfdb8c0591f545ba749dd (diff)
parent83097aca8567a0bd593534853b71fe0fa9a75d69 (diff)
Merge branch 'linus' into x86/urgent
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_ud.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_ud.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_ud.c b/drivers/infiniband/hw/ipath/ipath_ud.c
index 36aa242c487..729446f56aa 100644
--- a/drivers/infiniband/hw/ipath/ipath_ud.c
+++ b/drivers/infiniband/hw/ipath/ipath_ud.c
@@ -267,6 +267,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
u16 lrh0;
u16 lid;
int ret = 0;
+ int next_cur;
spin_lock_irqsave(&qp->s_lock, flags);
@@ -290,8 +291,9 @@ int ipath_make_ud_req(struct ipath_qp *qp)
goto bail;
wqe = get_swqe_ptr(qp, qp->s_cur);
- if (++qp->s_cur >= qp->s_size)
- qp->s_cur = 0;
+ next_cur = qp->s_cur + 1;
+ if (next_cur >= qp->s_size)
+ next_cur = 0;
/* Construct the header. */
ah_attr = &to_iah(wqe->wr.wr.ud.ah)->attr;
@@ -315,6 +317,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
qp->s_flags |= IPATH_S_WAIT_DMA;
goto bail;
}
+ qp->s_cur = next_cur;
spin_unlock_irqrestore(&qp->s_lock, flags);
ipath_ud_loopback(qp, wqe);
spin_lock_irqsave(&qp->s_lock, flags);
@@ -323,6 +326,7 @@ int ipath_make_ud_req(struct ipath_qp *qp)
}
}
+ qp->s_cur = next_cur;
extra_bytes = -wqe->length & 3;
nwords = (wqe->length + extra_bytes) >> 2;