From: Will Deacon <will@kernel.org>
To: Amit Daniel Kachhap <amit.kachhap@arm.com>,
linux-arm-kernel@lists.infradead.org
Cc: catalin.marinas@arm.com, kernel-team@android.com,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Vincenzo Frascino <Vincenzo.Frascino@arm.com>,
Kevin Brodsky <kevin.brodsky@arm.com>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2] arm64/traps: Avoid unnecessary kernel/user pointer conversion
Date: Wed, 29 Sep 2021 18:48:22 +0100 [thread overview]
Message-ID: <163293026050.926465.15015359578646677100.b4-ty@kernel.org> (raw)
In-Reply-To: <20210917055811.22341-1-amit.kachhap@arm.com>
On Fri, 17 Sep 2021 11:28:11 +0530, Amit Daniel Kachhap wrote:
> Annotating a pointer from kernel to __user and then back again requires
> an extra __force annotation to silent sparse warning. In call_undef_hook()
> this unnecessary complexity can be avoided by modifying the intermediate
> user pointer to unsigned long.
>
> This way there is no inter-changeable use of user and kernel pointers
> and the code is consistent.
>
> [...]
Applied to arm64 (for-next/misc), thanks!
[1/1] arm64/traps: Avoid unnecessary kernel/user pointer conversion
https://git.kernel.org/arm64/c/f5b650f887f3
Cheers,
--
Will
https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev
prev parent reply other threads:[~2021-09-29 17:48 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-17 5:58 [PATCH v2] arm64/traps: Avoid unnecessary kernel/user pointer conversion Amit Daniel Kachhap
2021-09-17 9:36 ` Mark Rutland
2021-09-29 17:48 ` Will Deacon [this message]
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