uio_hv_generic: Remove use of PAGE_SIZE

[linux-2.6-block.git] / drivers / uio / uio_hv_generic.c

diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c
index 289611c7dfd79d0b8724ceab8c908eafb9f499f7..015ddbddd6e1a7c849c6be05d9b0c76aee1b05c7 100644 (file)
--- a/drivers/uio/uio_hv_generic.c
+++ b/drivers/uio/uio_hv_generic.c
@@ -36,7 +36,6 @@
 #define DRIVER_AUTHOR  "Stephen Hemminger <sthemmin at microsoft.com>"
 #define DRIVER_DESC    "Generic UIO driver for VMBus devices"
 
-#define HV_RING_SIZE    512    /* pages */
 #define SEND_BUFFER_SIZE (16 * 1024 * 1024)
 #define RECV_BUFFER_SIZE (31 * 1024 * 1024)
 
@@ -146,7 +145,7 @@ static const struct bin_attribute ring_buffer_bin_attr = {
                .name = "ring",
                .mode = 0600,
        },
-       .size = 2 * HV_RING_SIZE * PAGE_SIZE,
+       .size = 2 * SZ_2M,
        .mmap = hv_uio_ring_mmap,
 };
 
@@ -156,7 +155,7 @@ hv_uio_new_channel(struct vmbus_channel *new_sc)
 {
        struct hv_device *hv_dev = new_sc->primary_channel->device_obj;
        struct device *device = &hv_dev->device;
-       const size_t ring_bytes = HV_RING_SIZE * PAGE_SIZE;
+       const size_t ring_bytes = SZ_2M;
        int ret;
 
        /* Create host communication ring */
@@ -244,7 +243,7 @@ hv_uio_probe(struct hv_device *dev,
        size_t ring_size = hv_dev_ring_size(channel);
 
        if (!ring_size)
-               ring_size = HV_RING_SIZE * PAGE_SIZE;
+               ring_size = SZ_2M;
 
        pdata = devm_kzalloc(&dev->device, sizeof(*pdata), GFP_KERNEL);
        if (!pdata)