Messages in this thread Patch in this message | | | From | Arnd Bergmann <> | Subject | [PATCH 1/3] infiniband: rxe: avoid 64-bit division | Date | Mon, 13 Jun 2016 14:54:53 +0200 |
| |
The rxe driver fails to build on 32-bit because of a 64-bit division:
In function `rxe_qp_from_attr': :(.text+0x53158): undefined reference to `__aeabi_uldivmod'
We can easily avoid this division by converting the nanosecond value into jiffies directly rather than converting to microseconds first.
Signed-off-by: Arnd Bergmann <arnd@arndb.de> --- drivers/infiniband/hw/rxe/rxe_qp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/rxe/rxe_qp.c b/drivers/infiniband/hw/rxe/rxe_qp.c index aa11ac3032b2..4e7b0985aab8 100644 --- a/drivers/infiniband/hw/rxe/rxe_qp.c +++ b/drivers/infiniband/hw/rxe/rxe_qp.c @@ -664,7 +664,7 @@ int rxe_qp_from_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask, qp->qp_timeout_jiffies = 0; } else { /* According to the spec, timeout = 4.096 * 2 ^ attr->timeout [us] */ - int j = usecs_to_jiffies((4096ULL << attr->timeout) / 1000); + int j = nsecs_to_jiffies(4096ULL << attr->timeout); qp->qp_timeout_jiffies = j ? j : 1; } -- 2.7.0
| |