From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
To: Will Deacon <will.deacon@arm.com>,
Russell King <linux@arm.linux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-kernel <linux-kernel@vger.kernel.org>,
linux-arm-kernel <linux-arm-kernel@lists.infradead.org>
Subject: arm32: Missing __get_user for u64 user type
Date: Fri, 6 Jul 2018 13:30:04 -0400 (EDT) [thread overview]
Message-ID: <208280844.1302.1530898204811.JavaMail.zimbra@efficios.com> (raw)
Hi,
The restartable sequence code needs a __get_user for u64 types.
arm32. Although a get_user() is implemented, the architecture
lacks support for 8 bytes __get_user().
Do you guys recommend extending __get_user_err() to do two
__get_user_asm_word() to read it through a temporary union,
or do you have other approaches in mind ?
Thanks,
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
reply other threads:[~2018-07-06 17:30 UTC|newest]
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