Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751671AbaLPXYF (ORCPT ); Tue, 16 Dec 2014 18:24:05 -0500 Received: from lekensteyn.nl ([178.21.112.251]:51819 "EHLO lekensteyn.nl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905AbaLPXYD (ORCPT ); Tue, 16 Dec 2014 18:24:03 -0500 From: Peter Wu To: Jiri Kosina , Benjamin Tissoires Cc: Nestor Lopez Casado , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 3/3] HID: logitech-hidpp: separate HID++ from WTP processing Date: Wed, 17 Dec 2014 00:23:51 +0100 Message-Id: <1418772231-31330-1-git-send-email-peter@lekensteyn.nl> X-Mailer: git-send-email 2.1.3 In-Reply-To: References: X-Spam-Score: 0.0 (/) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Previously wtp_raw_event would be called through hidpp_raw_hidpp_event (for the touchpad report) and hidpp_raw_event (for the mouse report). This patch removes one calling surface, making a clearer distinction between "generic HID++ processing" (matching internal reports) and device-specific event processing. Suggested-by: Benjamin Tissoires Signed-off-by: Peter Wu Reviewed-by: Benjamin Tissoires --- v1: patch 2/3 HID: logitech-{dj,hidpp}: check report length v2: splitted original report length check patch. Restructured code. v3: renamed var r to ret for consistency, added R-b of Benjamin Hi Benjamin, I am in a good mood now, so here is v3! IMO 'r' as 'ret' is common just like 'i' is short for 'index', but for consistency sake I'll use ret here ;) Kind regards, Peter --- drivers/hid/hid-logitech-hidpp.c | 18 ++++++++++++------ 1 file changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c index 2f1b0ac..18af2de 100644 --- a/drivers/hid/hid-logitech-hidpp.c +++ b/drivers/hid/hid-logitech-hidpp.c @@ -942,7 +942,7 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data, /* * If the mutex is locked then we have a pending answer from a - * previoulsly sent command + * previously sent command. */ if (unlikely(mutex_is_locked(&hidpp->send_mutex))) { /* @@ -973,9 +973,6 @@ static int hidpp_raw_hidpp_event(struct hidpp_device *hidpp, u8 *data, return 1; } - if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) - return wtp_raw_event(hidpp->hid_dev, data, size); - return 0; } @@ -983,7 +980,9 @@ static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) { struct hidpp_device *hidpp = hid_get_drvdata(hdev); + int ret = 0; + /* Generic HID++ processing. */ switch (data[0]) { case REPORT_ID_HIDPP_LONG: if (size != HIDPP_REPORT_LONG_LENGTH) { @@ -991,16 +990,23 @@ static int hidpp_raw_event(struct hid_device *hdev, struct hid_report *report, size); return 1; } - return hidpp_raw_hidpp_event(hidpp, data, size); + ret = hidpp_raw_hidpp_event(hidpp, data, size); + break; case REPORT_ID_HIDPP_SHORT: if (size != HIDPP_REPORT_SHORT_LENGTH) { hid_err(hdev, "received hid++ report of bad size (%d)", size); return 1; } - return hidpp_raw_hidpp_event(hidpp, data, size); + ret = hidpp_raw_hidpp_event(hidpp, data, size); + break; } + /* If no report is available for further processing, skip calling + * raw_event of subclasses. */ + if (ret != 0) + return ret; + if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) return wtp_raw_event(hdev, data, size); -- 2.1.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/