IB/uverbs: use stack variable 'base' in ib_uverbs_add_one
This change is not useful by itself, but sets us up for a future change
that allows us to support more than IB_UVERBS_MAX_DEVICES in a system.
Signed-off-by: Alex Chiang <achiang@hp.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index acae9ed..8c594cd 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -731,6 +731,7 @@
static void ib_uverbs_add_one(struct ib_device *device)
{
int devnum;
+ dev_t base;
struct ib_uverbs_device *uverbs_dev;
if (!device->alloc_ucontext)
@@ -750,6 +751,7 @@
goto err;
}
uverbs_dev->devnum = devnum;
+ base = devnum + IB_UVERBS_BASE_DEV;
set_bit(devnum, dev_map);
spin_unlock(&map_lock);
@@ -760,7 +762,7 @@
uverbs_dev->cdev.owner = THIS_MODULE;
uverbs_dev->cdev.ops = device->mmap ? &uverbs_mmap_fops : &uverbs_fops;
kobject_set_name(&uverbs_dev->cdev.kobj, "uverbs%d", uverbs_dev->devnum);
- if (cdev_add(&uverbs_dev->cdev, IB_UVERBS_BASE_DEV + devnum, 1))
+ if (cdev_add(&uverbs_dev->cdev, base, 1))
goto err_cdev;
uverbs_dev->dev = device_create(uverbs_class, device->dma_device,
