linux-kernel - [PATCH 3.10 114/139] [media] ir-core: fix gcc-7 warning on bool arithmetic

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Message-Id: <1509571624-5001-15-git-send-email-w@1wt.eu>
Date:   Wed,  1 Nov 2017 22:26:39 +0100
From:   Willy Tarreau <w@....eu>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org,
        linux@...ck-us.net
Cc:     Arnd Bergmann <arnd@...db.de>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        Willy Tarreau <w@....eu>
Subject: [PATCH 3.10 114/139] [media] ir-core: fix gcc-7 warning on bool arithmetic

From: Arnd Bergmann <arnd@...db.de>

commit bd7e31bbade02bc1e92aa00d5cf2cee2da66838a upstream.

gcc-7 suggests that an expression using a bitwise not and a bitmask
on a 'bool' variable is better written using boolean logic:

drivers/media/rc/imon.c: In function 'imon_incoming_scancode':
drivers/media/rc/imon.c:1725:22: error: '~' on a boolean expression [-Werror=bool-operation]
    ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
                      ^
drivers/media/rc/imon.c:1725:22: note: did you mean to use logical not?

I agree.

Fixes: 21677cfc562a ("V4L/DVB: ir-core: add imon driver")

Signed-off-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@...pensource.com>
Signed-off-by: Willy Tarreau <w@....eu>
---
 drivers/media/rc/imon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/rc/imon.c b/drivers/media/rc/imon.c
index 72e3fa6..257bb7a 100644
--- a/drivers/media/rc/imon.c
+++ b/drivers/media/rc/imon.c
@@ -1530,7 +1530,7 @@ static void imon_incoming_packet(struct imon_context *ictx,
 	if (kc == KEY_KEYBOARD && !ictx->release_code) {
 		ictx->last_keycode = kc;
 		if (!nomouse) {
-			ictx->pad_mouse = ~(ictx->pad_mouse) & 0x1;
+			ictx->pad_mouse = !ictx->pad_mouse;
 			dev_dbg(dev, "toggling to %s mode\n",
 				ictx->pad_mouse ? "mouse" : "keyboard");
 			spin_unlock_irqrestore(&ictx->kc_lock, flags);
-- 
2.8.0.rc2.1.gbe9624a