netdev - Re: Getting make net/built-in.o Error with 2.6.21.1 Build

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Date:	Tue, 8 May 2007 18:23:57 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	Satyam Sharma <satyam.sharma@...il.com>,
	Marcel Holtmann <marcel@...tmann.org>
cc:	chris@...urn.com, linux-kernel@...r.kernel.org,
	bluez-devel@...ts.sourceforge.net, netdev@...r.kernel.org
Subject: Re: Getting make net/built-in.o Error with 2.6.21.1 Build

On Tue, 8 May 2007, Satyam Sharma wrote:

> Sure, my aim here was to only solve the _build breakage_ by fixing the 
> Kconfig for this module (that used code from another kernel module 
> without listing it in its dependencies). If, as you say, the real 
> solution is that we should actually be taking out the offending call to 
> the other module itself, then please go ahead -- I don't know much about 
> the Bluetooth / HIDP subsytem anyway.

Converting the hid-ff drivers to be also transport-independent is on my 
TODO list, but it didn't happen yet.

Marcel - are you aware of any devices currently supported by USB HID 
force-feedback code, which have a bluetooth version, please? 

I'd propose the patch below, until I make the usbhid force-feedback code 
transport independent. Thanks.

From: Jiri Kosina <jkosina@...e.cz>

[Bluetooth] HIDP - don't initialize force feedback

The current implementation of force feedback for HID devices is 
USB-transport only and therefore calling hid_ff_init() from hidp code is 
not going to work (plus it creates unwanted dependency of hidp on usbhid). 
Remove the hid_ff_init() until either the hid-ff is made 
transport-independent, or at least support for bluetooth transport is 
added.

Signed-off-by: Jiri Kosina <jkosina@...e.cz>

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index d342e89..3e77e81 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -737,10 +737,8 @@ static inline void hidp_setup_hid(struct
 	list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
 		hidp_send_report(session, report);

-	if (hidinput_connect(hid) == 0) {
+	if (hidinput_connect(hid) == 0)
 		hid->claimed |= HID_CLAIMED_INPUT;
-		hid_ff_init(hid);
-	}
 }

 int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock)
-
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