From: Paolo Bonzini <pbonzini@redhat.com>
To: "Alex Bennée" <alex.bennee@linaro.org>, qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, sbruno@freebsd.org
Subject: Re: [Qemu-devel] [PATCH v1 2/2] include/qemu/atomic: add compile time asserts
Date: Mon, 4 Apr 2016 10:33:51 +0200 [thread overview]
Message-ID: <570226EF.7090707@redhat.com> (raw)
In-Reply-To: <87pou9fk2i.fsf@linaro.org>
On 01/04/2016 17:03, Alex Bennée wrote:
>
>> > To be safely portable no atomic access should be trying to do more than
>> > the natural word width of the host. The most common abuse is trying to
>> > atomically access 64 bit values on a 32 bit host.
>> >
>> > This patch adds some QEMU_BUILD_BUG_ON to the __atomic instrinsic paths
>> > to create a build failure if (sizeof(*ptr) > sizeof(void *)).
>> >
>> > Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
>
> Ping Paolo. Is this worth including in a re-spin?
Yes, please.
prev parent reply other threads:[~2016-04-04 8:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-21 16:23 [Qemu-devel] [PATCH v1 0/2] Fix for FreeBSD compile on i386 Alex Bennée
2016-03-21 16:23 ` [Qemu-devel] [PATCH v1 1/2] cpus: don't use atomic_read for vm_clock_warp_start Alex Bennée
2016-03-21 16:26 ` Paolo Bonzini
2016-03-21 17:45 ` Alex Bennée
2016-03-21 16:23 ` [Qemu-devel] [PATCH v1 2/2] include/qemu/atomic: add compile time asserts Alex Bennée
2016-04-01 15:03 ` Alex Bennée
2016-04-04 8:33 ` Paolo Bonzini [this message]
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