From: mbizon@freebox.fr (Maxime Bizon)
To: linux-arm-kernel@lists.infradead.org
Subject: gcc miscompiles csum_tcpudp_magic() on ARMv5
Date: Thu, 12 Dec 2013 16:04:17 +0100 [thread overview]
Message-ID: <1386860657.25449.3.camel@sakura.staff.proxad.net> (raw)
In-Reply-To: <20131212144853.GO4360@n2100.arm.linux.org.uk>
On Thu, 2013-12-12 at 14:48 +0000, Russell King - ARM Linux wrote:
> Even so, the code _is_ buggy, because if the protocol value had bits
> 15-8 set, then this would go wrong for all the same reasons that
> you've found. GCC is definitely ignoring the outter (uint16_t) cast
> in the above.
ok I'll file a gcc bug report to get their input on this.
--
Maxime
next prev parent reply other threads:[~2013-12-12 15:04 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-12 12:14 gcc miscompiles csum_tcpudp_magic() on ARMv5 Maxime Bizon
2013-12-12 12:40 ` Russell King - ARM Linux
2013-12-12 13:36 ` Maxime Bizon
2013-12-12 13:48 ` Måns Rullgård
2013-12-12 14:10 ` Maxime Bizon
2013-12-12 14:19 ` Willy Tarreau
2013-12-12 14:28 ` Maxime Bizon
2013-12-12 14:42 ` Måns Rullgård
2013-12-12 14:52 ` Maxime Bizon
2013-12-12 14:58 ` Måns Rullgård
2013-12-12 15:00 ` Russell King - ARM Linux
2013-12-12 15:26 ` Maxime Bizon
2013-12-12 15:07 ` Willy Tarreau
2013-12-12 15:18 ` Måns Rullgård
2013-12-12 15:28 ` Willy Tarreau
2013-12-12 15:43 ` Russell King - ARM Linux
2013-12-12 15:50 ` Måns Rullgård
2013-12-12 14:37 ` Måns Rullgård
2013-12-12 14:40 ` Maxime Bizon
2013-12-12 14:47 ` Måns Rullgård
2013-12-12 14:26 ` Måns Rullgård
2013-12-12 14:48 ` Russell King - ARM Linux
2013-12-12 15:00 ` Måns Rullgård
2013-12-12 15:04 ` Maxime Bizon [this message]
2013-12-12 15:41 ` Russell King - ARM Linux
2013-12-12 16:04 ` Måns Rullgård
2013-12-12 16:04 ` Willy Tarreau
2013-12-12 16:47 ` Russell King - ARM Linux
2013-12-12 17:11 ` Willy Tarreau
2013-12-12 17:20 ` Russell King - ARM Linux
2013-12-12 17:35 ` Willy Tarreau
2013-12-12 18:07 ` Nicolas Pitre
2013-12-12 22:30 ` Maxime Bizon
2013-12-12 22:36 ` Russell King - ARM Linux
2013-12-12 22:44 ` Maxime Bizon
2013-12-12 22:48 ` Russell King - ARM Linux
2013-12-12 17:34 ` Maxime Bizon
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