diff options
| author | Saurabh Sengar | 2024-03-30 01:52:03 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2024-04-11 14:55:53 +0200 |
| commit | 76457f9a11dd1521efeb553526d350100e1ef422 (patch) | |
| tree | ffb2673c12db02529905113846d95d6cdc70ce87 /drivers/uio | |
| parent | ec314f61e4fc2d3dd6ea78aa18a5ac276eb1a8e3 (diff) | |
uio_hv_generic: Remove use of PAGE_SIZE
Remove use of PAGE_SIZE for device ring buffer size calculation, as
there is no dependency on device ring buffer size for linux kernel's
PAGE_SIZE. Use the absolute value of 2 MB instead.
Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Long Li <longli@microsoft.com>
Link: https://lore.kernel.org/r/1711788723-8593-8-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/uio')
| -rw-r--r-- | drivers/uio/uio_hv_generic.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index 289611c7dfd7..015ddbddd6e1 100644 --- 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) |