Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752617AbbD2TWg (ORCPT ); Wed, 29 Apr 2015 15:22:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59082 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751414AbbD2TWc (ORCPT ); Wed, 29 Apr 2015 15:22:32 -0400 Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Subject: [PATCH 09/13] input: Use bool and don't use !! on test_bit From: David Howells To: linux-arch@vger.kernel.org Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org Date: Wed, 29 Apr 2015 20:22:28 +0100 Message-ID: <20150429192228.24909.7027.stgit@warthog.procyon.org.uk> In-Reply-To: <20150429192133.24909.43184.stgit@warthog.procyon.org.uk> References: <20150429192133.24909.43184.stgit@warthog.procyon.org.uk> User-Agent: StGit/0.17.1-dirty MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3358 Lines: 92 Make is_event_supported() return a bool as it returns a boolean value. This will allow gcc to make better decisions. Don't use '!!' on test_bit() as test_bit() now returns a bool. This avoids gcc-5 warnings about using '!' operators on the LHS of a comparison. Signed-off-by: David Howells --- drivers/hid/hid-input.c | 4 ++-- drivers/input/input.c | 12 ++++++------ 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 008e89bf6f3c..b470913fdedb 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -1157,7 +1157,7 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct return; /* report the usage code as scancode if the key status has changed */ - if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value) + if (usage->type == EV_KEY && test_bit(usage->code, input->key) != value) input_event(input, EV_MSC, MSC_SCAN, usage->hid); input_event(input, usage->type, usage->code, value); @@ -1411,7 +1411,7 @@ static bool hidinput_has_been_populated(struct hid_input *hidinput) for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++) r |= hidinput->input->swbit[i]; - return !!r; + return r != 0; } static void hidinput_cleanup_hidinput(struct hid_device *hid, diff --git a/drivers/input/input.c b/drivers/input/input.c index cc357f1516a7..49bf0cadcc6b 100644 --- a/drivers/input/input.c +++ b/drivers/input/input.c @@ -50,8 +50,8 @@ static DEFINE_MUTEX(input_mutex); static const struct input_value input_value_sync = { EV_SYN, SYN_REPORT, 1 }; -static inline int is_event_supported(unsigned int code, - unsigned long *bm, unsigned int max) +static inline bool is_event_supported(unsigned int code, + unsigned long *bm, unsigned int max) { return code <= max && test_bit(code, bm); } @@ -294,7 +294,7 @@ static int input_get_disposition(struct input_dev *dev, break; } - if (!!test_bit(code, dev->key) != !!value) { + if (test_bit(code, dev->key) != !!value) { __change_bit(code, dev->key); disposition = INPUT_PASS_TO_HANDLERS; @@ -304,7 +304,7 @@ static int input_get_disposition(struct input_dev *dev, case EV_SW: if (is_event_supported(code, dev->swbit, SW_MAX) && - !!test_bit(code, dev->sw) != !!value) { + test_bit(code, dev->sw) != !!value) { __change_bit(code, dev->sw); disposition = INPUT_PASS_TO_HANDLERS; @@ -331,7 +331,7 @@ static int input_get_disposition(struct input_dev *dev, case EV_LED: if (is_event_supported(code, dev->ledbit, LED_MAX) && - !!test_bit(code, dev->led) != !!value) { + test_bit(code, dev->led) != !!value) { __change_bit(code, dev->led); disposition = INPUT_PASS_TO_ALL; @@ -341,7 +341,7 @@ static int input_get_disposition(struct input_dev *dev, case EV_SND: if (is_event_supported(code, dev->sndbit, SND_MAX)) { - if (!!test_bit(code, dev->snd) != !!value) + if (test_bit(code, dev->snd) != !!value) __change_bit(code, dev->snd); disposition = INPUT_PASS_TO_ALL; } -- 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/