linux-kernel - Re: [PATCH 05/11] HID: HIDp: remove hidp_hidinput

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Date:	Mon, 3 Feb 2014 16:10:56 +0100
From:	David Herrmann <dh.herrmann@...il.com>
To:	Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc:	Benjamin Tissoires <benjamin.tissoires@...il.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Frank Praznik <frank.praznik@...rr.com>,
	"open list:HID CORE LAYER" <linux-input@...r.kernel.org>,
	linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 05/11] HID: HIDp: remove hidp_hidinput_event

Hi

On Sun, Feb 2, 2014 at 5:50 AM, Benjamin Tissoires
<benjamin.tissoires@...hat.com> wrote:
> hidp uses its own ->hidinput_input_event() instead of the generic binding
> in hid-input.
> Moving the handling of LEDs towards hidp_hidinput_event() allows two things:
> - remove hidinput_input_event definitively from struct hid_device
> - hidraw user space programs can also set the LEDs

This one looks good. hid-input uses output_raw_report(), which is on
INTR for BT-HID, which is equivalent to what hidp_send_report() does.
So:

Reviewed-by: David Herrmann <dh.herrmann@...il.com>

Btw., you might have to keep hidp_send_report() if you drop earlier
patches (haven't exactly looked at the order), but feel free to keep
my r-b anyway.

Thanks
David

>
> Signed-off-by: Benjamin Tissoires <benjamin.tissoires@...hat.com>
> ---
>  net/bluetooth/hidp/core.c | 46 ----------------------------------------------
>  1 file changed, 46 deletions(-)
>
> diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
> index b062cee..469e61b 100644
> --- a/net/bluetooth/hidp/core.c
> +++ b/net/bluetooth/hidp/core.c
> @@ -223,51 +223,6 @@ static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
>         input_sync(dev);
>  }
>
> -static int hidp_send_report(struct hidp_session *session, struct hid_report *report)
> -{
> -       unsigned char hdr;
> -       u8 *buf;
> -       int rsize, ret;
> -
> -       buf = hid_alloc_report_buf(report, GFP_ATOMIC);
> -       if (!buf)
> -               return -EIO;
> -
> -       hid_output_report(report, buf);
> -       hdr = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
> -
> -       rsize = ((report->size - 1) >> 3) + 1 + (report->id > 0);
> -       ret = hidp_send_intr_message(session, hdr, buf, rsize);
> -
> -       kfree(buf);
> -       return ret;
> -}
> -
> -static int hidp_hidinput_event(struct input_dev *dev, unsigned int type,
> -                              unsigned int code, int value)
> -{
> -       struct hid_device *hid = input_get_drvdata(dev);
> -       struct hidp_session *session = hid->driver_data;
> -       struct hid_field *field;
> -       int offset;
> -
> -       BT_DBG("session %p type %d code %d value %d",
> -              session, type, code, value);
> -
> -       if (type != EV_LED)
> -               return -1;
> -
> -       offset = hidinput_find_field(hid, type, code, &field);
> -       if (offset == -1) {
> -               hid_warn(dev, "event field not found\n");
> -               return -1;
> -       }
> -
> -       hid_set_field(field, offset, value);
> -
> -       return hidp_send_report(session, field->report);
> -}
> -
>  static int hidp_get_raw_report(struct hid_device *hid,
>                 unsigned char report_number,
>                 unsigned char *data, size_t count,
> @@ -817,7 +772,6 @@ static struct hid_ll_driver hidp_hid_driver = {
>         .close = hidp_close,
>         .raw_request = hidp_raw_request,
>         .output_report = hidp_output_report,
> -       .hidinput_input_event = hidp_hidinput_event,
>  };
>
>  /* This function sets up the hid device. It does not add it
> --
> 1.8.3.1
>
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