From: Alex Elder Date: Thu, 25 Apr 2013 20:09:41 +0000 (-0500) Subject: rbd: make snap_size order parameter optional X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c86f86e9e75e77e4d51ded9edbad30834ff606f7;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git rbd: make snap_size order parameter optional Only one of the two callers of _rbd_dev_v2_snap_size() needs the order value returned. So make that an optional argument--a null pointer if the caller doesn't need it. Signed-off-by: Alex Elder Reviewed-by: Josh Durgin --- diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 28b652c38102..1e01f0d8312a 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -3494,7 +3494,8 @@ static int _rbd_dev_v2_snap_size(struct rbd_device *rbd_dev, u64 snap_id, if (ret < sizeof (size_buf)) return -ERANGE; - *order = size_buf.order; + if (order) + *order = size_buf.order; *snap_size = le64_to_cpu(size_buf.size); dout(" snap_id 0x%016llx order = %u, snap_size = %llu\n", @@ -3939,11 +3940,10 @@ static char *rbd_dev_v2_snap_info(struct rbd_device *rbd_dev, u32 which, u64 *snap_size, u64 *snap_features) { u64 snap_id; - u8 order; int ret; snap_id = rbd_dev->header.snapc->snaps[which]; - ret = _rbd_dev_v2_snap_size(rbd_dev, snap_id, &order, snap_size); + ret = _rbd_dev_v2_snap_size(rbd_dev, snap_id, NULL, snap_size); if (ret) return ERR_PTR(ret); ret = _rbd_dev_v2_snap_features(rbd_dev, snap_id, snap_features);