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Re: [PATCH v4] osdep: Make MIN/MAX evaluate arguments only once
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From: |
Eric Blake |
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Subject: |
Re: [PATCH v4] osdep: Make MIN/MAX evaluate arguments only once |
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Date: |
Thu, 4 Jun 2020 16:55:01 -0500 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.8.0 |
On 6/4/20 4:52 PM, Eric Blake wrote:
I'm not aware of any immediate bugs in qemu where a second runtime
evalution of the arguments to MIN() or MAX() causes a problem, but
evaluation
proactively preventing such abuse is easier than falling prey to an
unintended case down the road. At any rate, here's the conversation
that sparked the current patch:
https://lists.gnu.org/archive/html/qemu-devel/2018-12/msg05718.html
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3226
Virtualization: qemu.org | libvirt.org