On Fr, 2018-10-05 at 10:24 +0000, Igor Russkikh wrote:
> From: Dmitry Bezrukov <dmitry.bezrukov@xxxxxxxxxxxx>
>
> Read/write command register defines and functions
>
> Signed-off-by: Dmitry Bezrukov <dmitry.bezrukov@xxxxxxxxxxxx>
> Signed-off-by: Igor Russkikh <igor.russkikh@xxxxxxxxxxxx>
> ---
> drivers/net/usb/aqc111.c | 124 +++++++++++++++++++++++++++++++++++++++++++++++
> drivers/net/usb/aqc111.h | 19 ++++++++
> 2 files changed, 143 insertions(+)
> create mode 100644 drivers/net/usb/aqc111.h
>
> diff --git a/drivers/net/usb/aqc111.c b/drivers/net/usb/aqc111.c
> index c914e19387f2..7f3e5a615750 100644
> --- a/drivers/net/usb/aqc111.c
> +++ b/drivers/net/usb/aqc111.c
> @@ -14,6 +14,130 @@
> #include <linux/usb/cdc.h>
> #include <linux/usb/usbnet.h>
>
> +#include "aqc111.h"
> +
> +static int __aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
> + u16 index, u16 size, void *data, int nopm)
> +{
> + int ret;
> + int (*fn)(struct usbnet *dev, u8 cmd, u8 reqtype, u16 value,
> + u16 index, void *data, u16 size);
> +
> + if (nopm)
> + fn = usbnet_read_cmd_nopm;
> + else
> + fn = usbnet_read_cmd;
If you really want to do this, pass the function.
> +
> + ret = fn(dev, cmd, USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
> + value, index, data, size);
> + if (size == 2)
> + le16_to_cpus(data);
That is incredibly dirty
> +
> + if (unlikely(ret < 0))
> + netdev_warn(dev->net,
> + "Failed to read(0x%x) reg index 0x%04x: %d\n",
> + cmd, index, ret);
> + return ret;
> +}
> +
> +static int aqc111_read_cmd_nopm(struct usbnet *dev, u8 cmd, u16 value,
> + u16 index, u16 size, void *data)
> +{
> + return __aqc111_read_cmd(dev, cmd, value, index, size, data, 1);
> +}
> +
> +static int aqc111_read_cmd(struct usbnet *dev, u8 cmd, u16 value,
> + u16 index, u16 size, void *data)
> +{
> + return __aqc111_read_cmd(dev, cmd, value, index, size, data, 0);
> +}
> +
> +static int __aq_write_cmd(struct usbnet *dev, u8 cmd, u8 reqtype,
> + u16 value, u16 index, const void *data, u16 size)
> +{
> + void *buf = NULL;
> + int err = -ENOMEM;
> +
> + netdev_dbg(dev->net,
> + "%s cmd=%#x reqtype=%#x value=%#x index=%#x size=%d\n",
> + __func__, cmd, reqtype, value, index, size);
> +
> + if (data) {
> + buf = kmemdup(data, size, GFP_KERNEL);
Under which contexts is this used?
Regards
Oliver
