lkml.org 
[lkml]   [2019]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    From
    Subject[PATCH v1 5/5] mtty: Optionally support mtty alias
    Date
    Provide a module parameter to set alias length to optionally generate
    mdev alias.

    Example to request mdev alias.
    $ modprobe mtty alias_length=12

    Signed-off-by: Parav Pandit <parav@mellanox.com>
    ---
    samples/vfio-mdev/mtty.c | 10 ++++++++++
    1 file changed, 10 insertions(+)

    diff --git a/samples/vfio-mdev/mtty.c b/samples/vfio-mdev/mtty.c
    index 92e770a06ea2..92208245b057 100644
    --- a/samples/vfio-mdev/mtty.c
    +++ b/samples/vfio-mdev/mtty.c
    @@ -1410,6 +1410,15 @@ static struct attribute_group *mdev_type_groups[] = {
    NULL,
    };

    +static unsigned int mtty_alias_length;
    +module_param_named(alias_length, mtty_alias_length, uint, 0444);
    +MODULE_PARM_DESC(alias_length, "mdev alias length; default=0");
    +
    +static unsigned int mtty_get_alias_length(void)
    +{
    + return mtty_alias_length;
    +}
    +
    static const struct mdev_parent_ops mdev_fops = {
    .owner = THIS_MODULE,
    .dev_attr_groups = mtty_dev_groups,
    @@ -1422,6 +1431,7 @@ static const struct mdev_parent_ops mdev_fops = {
    .read = mtty_read,
    .write = mtty_write,
    .ioctl = mtty_ioctl,
    + .get_alias_length = mtty_get_alias_length
    };

    static void mtty_device_release(struct device *dev)
    --
    2.19.2
    \
     
     \ /
      Last update: 2019-08-27 21:18    [W:3.351 / U:3.208 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site