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From: Arnd Bergmann <arnd@arndb.de>
To: linux-kernel@vger.kernel.org, Karsten Keil <isdn@linux-pingi.de>,
	"David S. Miller" <davem@davemloft.net>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	dri-devel@lists.freedesktop.org, linux-ide@vger.kernel.org,
	netdev@vger.kernel.org, Tejun Heo <tj@kernel.org>,
	akpm@linux-foundation.org,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Guenter Roeck <linux@roeck-us.net>,
	linux-media@vger.kernel.org
Subject: [PATCH 05/14] isdn: isdnloop: suppress a gcc-7 warning
Date: Fri, 14 Jul 2017 11:25:17 +0200	[thread overview]
Message-ID: <20170714092540.1217397-6-arnd@arndb.de> (raw)
In-Reply-To: <20170714092540.1217397-1-arnd@arndb.de>

We test whether a bit is set in a mask here, which is correct
but gcc warns about it as it thinks it might be confusing:

drivers/isdn/isdnloop/isdnloop.c:412:37: error: ?: using integer constants in boolean context, the expression will always evaluate to 'true' [-Werror=int-in-bool-context]

This replaces the negation of an integer with an equivalent
comparison to zero, which gets rid of the warning.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/isdn/isdnloop/isdnloop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c
index 6ffd13466b8c..5792928b944d 100644
--- a/drivers/isdn/isdnloop/isdnloop.c
+++ b/drivers/isdn/isdnloop/isdnloop.c
@@ -409,7 +409,7 @@ isdnloop_sendbuf(int channel, struct sk_buff *skb, isdnloop_card *card)
 		return -EINVAL;
 	}
 	if (len) {
-		if (!(card->flags & (channel) ? ISDNLOOP_FLAGS_B2ACTIVE : ISDNLOOP_FLAGS_B1ACTIVE))
+		if ((card->flags & (channel) ? ISDNLOOP_FLAGS_B2ACTIVE : ISDNLOOP_FLAGS_B1ACTIVE) == 0)
 			return 0;
 		if (card->sndcount[channel] > ISDNLOOP_MAX_SQUEUE)
 			return 0;
-- 
2.9.0

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  parent reply	other threads:[~2017-07-14  9:28 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-14  9:25 [PATCH 00/14] gcc-7 warnings Arnd Bergmann
2017-07-14  9:25 ` [PATCH, RESEND 01/14] ide: avoid warning for timings calculation Arnd Bergmann
2017-07-14  9:25 ` [PATCH, RESEND 02/14] ata: avoid gcc-7 warning in ata_timing_quantize Arnd Bergmann
2017-07-15 10:56   ` Tejun Heo
2017-07-14  9:25 ` [PATCH, RESEND 03/14] drm/vmwgfx: avoid gcc-7 parentheses warning Arnd Bergmann
2017-07-14 10:11   ` Jani Nikula
2017-07-14 19:21   ` Linus Torvalds
2017-07-14 19:23     ` Linus Torvalds
2017-07-14 20:28       ` Arnd Bergmann
2017-07-17 13:15         ` Sinclair Yeh
2017-07-14  9:25 ` [PATCH 04/14] x86: math-emu: avoid -Wint-in-bool-context warning Arnd Bergmann
2017-07-14  9:25 ` Arnd Bergmann [this message]
2017-07-14 10:08   ` [PATCH 05/14] isdn: isdnloop: suppress a gcc-7 warning Joe Perches
2017-07-14 10:37     ` Arnd Bergmann
2017-07-15  4:20       ` Kevin Easton
2017-07-14  9:25 ` [PATCH 06/14] acpi: thermal: fix gcc-6/ccache warning Arnd Bergmann
2017-07-14  9:25 ` [PATCH 07/14] proc/kcore: hide a harmless warning Arnd Bergmann
2017-07-14 12:28   ` Ard Biesheuvel
2017-07-18 19:53     ` Arnd Bergmann
2017-07-18 19:55       ` Ard Biesheuvel
2017-07-18 20:01         ` Arnd Bergmann
2017-07-18 20:07           ` Ard Biesheuvel
2017-07-18 20:21             ` Arnd Bergmann
2017-07-14  9:25 ` [PATCH 08/14] Input: adxl34x - fix gcc-7 -Wint-in-bool-context warning Arnd Bergmann
2017-07-14 19:24   ` Linus Torvalds
2017-07-14 20:17     ` Arnd Bergmann
2017-07-14 21:40       ` Dmitry Torokhov
2017-07-14  9:30 ` [PATCH 09/14] SFI: fix tautological-compare warning Arnd Bergmann
2017-07-14  9:31 ` [PATCH 10/14] staging:iio:resolver:ad2s1210 fix negative IIO_ANGL_VEL read Arnd Bergmann
2017-07-15 11:42   ` Jonathan Cameron
2017-07-14  9:31 ` [PATCH 11/14] IB/uverbs: fix gcc-7 type warning Arnd Bergmann
2017-07-14  9:46   ` Leon Romanovsky
2017-07-14  9:31 ` [PATCH 12/14] drm/nouveau/clk: fix gcc-7 -Wint-in-bool-context warning Arnd Bergmann
2017-07-14  9:31 ` [PATCH 13/14] iopoll: avoid " Arnd Bergmann
2017-07-14  9:55   ` Joe Perches
2017-07-14 10:22     ` Arnd Bergmann
2017-07-14  9:36 ` [PATCH 14/14] [media] fix warning on v4l2_subdev_call() result interpreted as bool Arnd Bergmann
2017-07-14 12:05   ` Dan Carpenter
2017-07-14 12:27     ` Arnd Bergmann
2017-07-14 12:55       ` Dan Carpenter
2017-07-14 13:09         ` Dan Carpenter
2017-07-14 19:32           ` Arnd Bergmann
2017-07-14 12:41   ` Dan Carpenter
2017-07-17 13:45   ` Hans Verkuil
2017-07-17 14:26     ` Arnd Bergmann
2017-07-17 14:28       ` Dan Carpenter
2017-07-17 14:32       ` Hans Verkuil
2017-07-17 14:35       ` Hans Verkuil
2017-07-17 21:23         ` Arnd Bergmann
2017-07-14 10:29 ` [PATCH 00/14] gcc-7 warnings Greg Kroah-Hartman

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