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Subject: Re: [PATCH V11 2/6] modpost: add support for mdev class id
To:     Jason Wang <jasowang@redhat.com>, <kvm@vger.kernel.org>,
        <linux-s390@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
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From:   Kirti Wankhede <kwankhede@nvidia.com>
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On 11/7/2019 8:41 PM, Jason Wang wrote:
> Add support to parse mdev class id table.
> 
> Reviewed-by: Parav Pandit <parav@mellanox.com>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
> Signed-off-by: Jason Wang <jasowang@redhat.com>

Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com>

Thanks,
Kirti

> ---
>   drivers/vfio/mdev/vfio_mdev.c     |  2 ++
>   scripts/mod/devicetable-offsets.c |  3 +++
>   scripts/mod/file2alias.c          | 11 +++++++++++
>   3 files changed, 16 insertions(+)
> 
> diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c
> index 38431e9ef7f5..a6641cd8b5a3 100644
> --- a/drivers/vfio/mdev/vfio_mdev.c
> +++ b/drivers/vfio/mdev/vfio_mdev.c
> @@ -125,6 +125,8 @@ static const struct mdev_class_id vfio_id_table[] = {
>   	{ 0 },
>   };
>   
> +MODULE_DEVICE_TABLE(mdev, vfio_id_table);
> +
>   static struct mdev_driver vfio_mdev_driver = {
>   	.name	= "vfio_mdev",
>   	.probe	= vfio_mdev_probe,
> diff --git a/scripts/mod/devicetable-offsets.c b/scripts/mod/devicetable-offsets.c
> index 054405b90ba4..6cbb1062488a 100644
> --- a/scripts/mod/devicetable-offsets.c
> +++ b/scripts/mod/devicetable-offsets.c
> @@ -231,5 +231,8 @@ int main(void)
>   	DEVID(wmi_device_id);
>   	DEVID_FIELD(wmi_device_id, guid_string);
>   
> +	DEVID(mdev_class_id);
> +	DEVID_FIELD(mdev_class_id, id);
> +
>   	return 0;
>   }
> diff --git a/scripts/mod/file2alias.c b/scripts/mod/file2alias.c
> index c91eba751804..45f1c22f49be 100644
> --- a/scripts/mod/file2alias.c
> +++ b/scripts/mod/file2alias.c
> @@ -1335,6 +1335,16 @@ static int do_wmi_entry(const char *filename, void *symval, char *alias)
>   	return 1;
>   }
>   
> +/* looks like: "mdev:cN" */
> +static int do_mdev_entry(const char *filename, void *symval, char *alias)
> +{
> +	DEF_FIELD(symval, mdev_class_id, id);
> +
> +	sprintf(alias, "mdev:c%02X", id);
> +	add_wildcard(alias);
> +	return 1;
> +}
> +
>   /* Does namelen bytes of name exactly match the symbol? */
>   static bool sym_is(const char *name, unsigned namelen, const char *symbol)
>   {
> @@ -1407,6 +1417,7 @@ static const struct devtable devtable[] = {
>   	{"typec", SIZE_typec_device_id, do_typec_entry},
>   	{"tee", SIZE_tee_client_device_id, do_tee_entry},
>   	{"wmi", SIZE_wmi_device_id, do_wmi_entry},
> +	{"mdev", SIZE_mdev_class_id, do_mdev_entry},
>   };
>   
>   /* Create MODULE_ALIAS() statements.
>