From: Will Deacon <will@kernel.org>
To: Dave Martin <Dave.Martin@arm.com>
Cc: linux-arch@vger.kernel.org, linux-man@vger.kernel.org,
Catalin Marinas <catalin.marinas@arm.com>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v2 5/6] prctl.2: Add PR_PAC_RESET_KEYS (arm64)
Date: Tue, 9 Jun 2020 11:02:03 +0100 [thread overview]
Message-ID: <20200609100202.GB25362@willie-the-truck> (raw)
In-Reply-To: <1590614258-24728-6-git-send-email-Dave.Martin@arm.com>
On Wed, May 27, 2020 at 10:17:37PM +0100, Dave Martin wrote:
> Add documentation for the PR_PAC_RESET_KEYS ioctl added in Linux
> 5.0 for arm64.
[...]
> +If the arguments are invalid,
> +and in particular if
> +.I arg2
> +contains set bits that are unrecognized
> +or that correspond to a key not available on this platform,
> +the call fails with error
> +.BR EINVAL .
> +.IP
> +.B Warning:
> +Because the compiler or run-time environment
> +may be using some or all of the keys,
> +a successful
> +.IP
> +For more information, see the kernel source file
> +.I Documentation/arm64/pointer\-authentication.rst
> +.\"commit b693d0b372afb39432e1c49ad7b3454855bc6bed
> +(or
> +.I Documentation/arm64/pointer\-authentication.txt
> +before Linux 5.3).
> +.B PR_PAC_RESET_KEYS
> +may crash the calling process.
I might be misreading this, but this looks like the kernel reference appears
mid-sentence. Regardless, I think we should drop the kernel doc reference,
as I mentioned on the SVE patches.
With that:
Acked-by: Will Deacon <will@kernel.org>
Will
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next prev parent reply other threads:[~2020-06-09 10:02 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-27 21:17 [PATCH v2 0/6] prctl.2 man page updates for Linux 5.6 Dave Martin
2020-05-27 21:17 ` [PATCH v2 1/6] prctl.2: ffix use literal hyphens when referencing kernel docs Dave Martin
2020-05-28 6:05 ` Michael Kerrisk (man-pages)
2020-05-27 21:17 ` [PATCH v2 2/6] prctl.2: Add PR_SPEC_INDIRECT_BRANCH for SPECULATION_CTRL prctls Dave Martin
2020-05-28 7:01 ` Michael Kerrisk (man-pages)
2020-06-01 13:51 ` Dave Martin
2020-06-09 11:00 ` Michael Kerrisk (man-pages)
2020-05-27 21:17 ` [PATCH v2 3/6] prctl.2: Add PR_SPEC_DISABLE_NOEXEC " Dave Martin
2020-05-28 6:57 ` Michael Kerrisk (man-pages)
2020-05-28 13:45 ` Waiman Long
2020-05-27 21:17 ` [PATCH v2 4/6] prctl.2: Add SVE prctls (arm64) Dave Martin
2020-06-09 9:57 ` Will Deacon
2020-06-09 14:11 ` Dave Martin
2020-06-09 14:49 ` Will Deacon
2020-06-10 9:44 ` Dave Martin
2020-06-10 10:16 ` Will Deacon
2020-06-10 12:48 ` Dave Martin
2020-06-09 11:39 ` Michael Kerrisk (man-pages)
2020-06-10 9:45 ` Dave Martin
2020-05-27 21:17 ` [PATCH v2 5/6] prctl.2: Add PR_PAC_RESET_KEYS (arm64) Dave Martin
2020-06-09 10:02 ` Will Deacon [this message]
2020-06-09 11:03 ` Michael Kerrisk (man-pages)
2020-06-09 11:36 ` Michael Kerrisk (man-pages)
2020-06-09 14:16 ` Dave Martin
2020-06-09 18:11 ` Michael Kerrisk (man-pages)
2020-05-27 21:17 ` [RFC PATCH v2 6/6] prctl.2: Add tagged address ABI control prctls (arm64) Dave Martin
2020-06-09 11:04 ` Michael Kerrisk (man-pages)
2020-06-09 13:38 ` Will Deacon
2020-06-09 17:22 ` Catalin Marinas
2020-06-10 10:06 ` Dave Martin
2020-06-10 15:26 ` Catalin Marinas
2020-06-10 16:42 ` Dave Martin
2020-06-10 17:42 ` Catalin Marinas
2020-06-15 14:51 ` Dave Martin
2020-06-24 9:54 ` Michael Kerrisk (man-pages)
2020-06-24 10:29 ` Dave Martin
2020-05-28 7:11 ` [PATCH v2 0/6] prctl.2 man page updates for Linux 5.6 Michael Kerrisk (man-pages)
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