From: Alexey Dobriyan <adobriyan@gmail.com>
To: rjw@rjwysocki.net, lenb@kernel.org
Cc: linux-acpi@vger.kernel.org
Subject: evaluation order bug in acpi_pic_sci_set_trigger() ?
Date: Wed, 25 Nov 2020 22:59:06 +0300 [thread overview]
Message-ID: <20201125195906.GA3809000@localhost.localdomain> (raw)
acpi_pic_sci_set_trigger() contains the following code:
/* Real old ELCR mask */
old = inb(0x4d0) | (inb(0x4d1) << 8);
Operand evalution order is not guaranteed for binary or.
I wonder if this is a bug?
Alexey
next reply other threads:[~2020-11-25 19:59 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-25 19:59 Alexey Dobriyan [this message]
2020-11-26 14:32 ` evaluation order bug in acpi_pic_sci_set_trigger() ? Rafael J. Wysocki
2020-11-27 10:01 ` Alexey Dobriyan
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