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| author | Stephen Hemminger <stephen@networkplumber.org> | 2018-04-16 11:19:25 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-04-23 12:43:48 +0200 |
| commit | 9ab877a6ccf820483d79602bede0c1aa1da4d26a (patch) | |
| tree | e1cb6b77cbfb8794ab890fe9cc64f3a4ccd46a30 /drivers/uio | |
| parent | 6e3d66b80f670fdc64b9a120362a9f94b0494621 (diff) | |
| download | linux-9ab877a6ccf820483d79602bede0c1aa1da4d26a.tar.gz linux-9ab877a6ccf820483d79602bede0c1aa1da4d26a.tar.bz2 linux-9ab877a6ccf820483d79602bede0c1aa1da4d26a.zip | |
uio_hv_generic: make ring buffer attribute for primary channel
The primary channel also needs a ring buffer attribute. This allows
application to check if kernel supports uio sub channels, and also
makes all channels use consistent API.
Fixes: 37b96a4931db ("uio_hv_generic: support sub-channels")
Signed-off-by: Stephen Hemminger <sthemmin@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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/uio/uio_hv_generic.c b/drivers/uio/uio_hv_generic.c index 7ff659dff11d..972a42dd2a46 100644 --- a/drivers/uio/uio_hv_generic.c +++ b/drivers/uio/uio_hv_generic.c @@ -326,6 +326,11 @@ hv_uio_probe(struct hv_device *dev, vmbus_set_chn_rescind_callback(dev->channel, hv_uio_rescind); vmbus_set_sc_create_callback(dev->channel, hv_uio_new_channel); + ret = sysfs_create_bin_file(&dev->channel->kobj, &ring_buffer_bin_attr); + if (ret) + dev_notice(&dev->device, + "sysfs create ring bin file failed; %d\n", ret); + hv_set_drvdata(dev, pdata); return 0; |