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From: "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com>
To: Dave Martin <Dave.Martin@arm.com>
Cc: linux-arch@vger.kernel.org, linux-man@vger.kernel.org,
	Dave Hansen <dave.hansen@linux.intel.com>,
	mtk.manpages@gmail.com, Thomas Gleixner <tglx@linutronix.de>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 07/14] prctl.2: Document removal of Intel MPX prctls
Date: Wed, 13 May 2020 12:11:57 +0200	[thread overview]
Message-ID: <3201c6e6-bd9e-aef4-fae5-70229e1b1abe@gmail.com> (raw)
In-Reply-To: <1589301419-24459-8-git-send-email-Dave.Martin@arm.com>

On 5/12/20 6:36 PM, Dave Martin wrote:
> The Intel MPX API was removed from Linux 5.4.  See Linux
> commit f240652b6032 ("x86/mpx: Remove MPX APIs")
> 
> Document this change.

Thanks. Patch applied, with Dave H's Acked-by.

Cheers,

Michael

> Signed-off-by: Dave Martin <Dave.Martin@arm.com>
> Cc: Dave Hansen <dave.hansen@linux.intel.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> ---
>  man2/prctl.2 | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/man2/prctl.2 b/man2/prctl.2
> index 7a3fc5c..a84fb1d 100644
> --- a/man2/prctl.2
> +++ b/man2/prctl.2
> @@ -784,7 +784,7 @@ option enabled.
>  .RE
>  .\" prctl PR_MPX_ENABLE_MANAGEMENT
>  .TP
> -.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19) "
> +.BR PR_MPX_ENABLE_MANAGEMENT ", " PR_MPX_DISABLE_MANAGEMENT " (since Linux 3.19, removed in Linux 5.4; only on x86) "
>  .\" commit fe3d197f84319d3bce379a9c0dc17b1f48ad358c
>  .\" See also http://lwn.net/Articles/582712/
>  .\" See also https://gcc.gnu.org/wiki/Intel%20MPX%20support%20in%20the%20GCC%20compiler
> @@ -859,6 +859,12 @@ had been called.
>  .IP
>  For further information on Intel MPX, see the kernel source file
>  .IR Documentation/x86/intel_mpx.txt .
> +.IP
> +.\" commit f240652b6032b48ad7fa35c5e701cc4c8d697c0b
> +.\" See also https://lkml.kernel.org/r/20190705175321.DB42F0AD@viggo.jf.intel.com
> +Due to a lack of toolchain support,
> +.BR PR_MPX_ENABLE_MANAGEMENT " and " PR_MPX_DISABLE_MANAGEMENT
> +are not supported by Linux 5.4 or later.
>  .\" prctl PR_SET_NAME
>  .TP
>  .BR PR_SET_NAME " (since Linux 2.6.9)"
> 


-- 
Michael Kerrisk
Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/
Linux/UNIX System Programming Training: http://man7.org/training/

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  parent reply	other threads:[~2020-05-13 10:12 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-12 16:36 [PATCH 00/14] prctl.2 man page updates for Linux 5.6 Dave Martin
2020-05-12 16:36 ` [PATCH 01/14] prctl.2: tfix clarify that prctl can apply to threads Dave Martin
2020-05-13  8:30   ` Michael Kerrisk (man-pages)
2020-05-12 16:36 ` [PATCH 02/14] prctl.2: Add health warning Dave Martin
2020-05-13 10:10   ` Michael Kerrisk (man-pages)
2020-05-13 11:13     ` Dave Martin
2020-05-13 11:40       ` Michael Kerrisk (man-pages)
2020-05-13 11:41         ` Dave Martin
2020-05-12 16:36 ` [PATCH 03/14] prctl.2: tfix mis-description of thread ID values in procfs Dave Martin
2020-05-13  8:36   ` Michael Kerrisk (man-pages)
2020-05-12 16:36 ` [PATCH 04/14] prctl.2: srcfix add comments for navigation Dave Martin
2020-05-13 10:09   ` Michael Kerrisk (man-pages)
2020-05-13 10:56     ` Dave Martin
2020-05-13 11:03       ` Michael Kerrisk (man-pages)
2020-05-13 11:15         ` Dave Martin
2020-05-13 11:48           ` Michael Kerrisk (man-pages)
2020-05-13 11:51             ` Dave Martin
2020-05-12 16:36 ` [PATCH 05/14] prctl.2: tfix listing order of prctls Dave Martin
2020-05-13 10:10   ` Michael Kerrisk (man-pages)
2020-05-13 11:21     ` Dave Martin
2020-05-13 11:31       ` Michael Kerrisk (man-pages)
2020-05-13 11:45         ` Dave Martin
2020-05-12 16:36 ` [PATCH 06/14] prctl.2: ffix quotation mark tweaks Dave Martin
2020-05-13 10:11   ` Michael Kerrisk (man-pages)
2020-05-13 11:39     ` Dave Martin
2020-05-13 11:46       ` Michael Kerrisk (man-pages)
2020-05-13 11:51         ` Dave Martin
2020-05-12 16:36 ` [PATCH 07/14] prctl.2: Document removal of Intel MPX prctls Dave Martin
2020-05-12 16:41   ` Dave Hansen
2020-05-13 10:11   ` Michael Kerrisk (man-pages) [this message]
2020-05-12 16:36 ` [PATCH 08/14] prctl.2: Work around bogus constant "maxsig" in PR_SET_PDEATHSIG Dave Martin
2020-05-13 10:30   ` Michael Kerrisk (man-pages)
2020-05-12 16:36 ` [PATCH 09/14] prctl.2: tfix minor punctuation in SPECULATION_CTRL prctls Dave Martin
2020-05-13 10:31   ` Michael Kerrisk (man-pages)
2020-05-12 16:36 ` [PATCH 10/14] prctl.2: Add PR_SPEC_INDIRECT_BRANCH for " Dave Martin
2020-05-13 11:21   ` Michael Kerrisk (man-pages)
2020-05-13 11:49     ` Dave Martin
2020-05-13 12:06       ` Michael Kerrisk (man-pages)
2020-05-13 13:53         ` Dave Martin
2020-05-12 16:36 ` [PATCH 11/14] prctl.2: Add PR_SPEC_DISABLE_NOEXEC " Dave Martin
2020-05-12 16:36 ` [PATCH 12/14] prctl.2: Clarify the unsupported hardware case of EINVAL Dave Martin
2020-05-13 10:48   ` Michael Kerrisk (man-pages)
2020-05-12 16:36 ` [PATCH 13/14] prctl.2: Add SVE prctls (arm64) Dave Martin
2020-05-13  8:43   ` Will Deacon
2020-05-13 10:46     ` Dave Martin
2020-05-13 11:01       ` Michael Kerrisk (man-pages)
2020-05-13 14:02         ` Dave Martin
2020-05-13 21:11           ` Will Deacon
2020-05-18 16:37             ` Dave Martin
2020-05-26 14:45             ` Dave Martin
2020-05-12 16:36 ` [PATCH 14/14] prctl.2: Add PR_PAC_RESET_KEYS (arm64) Dave Martin
2020-05-13  7:25   ` Will Deacon
2020-05-13 14:36     ` Dave Martin
2020-05-13 21:00       ` Will Deacon
2020-05-18 16:11         ` Dave Martin
2020-05-18 16:29           ` Will Deacon
2020-05-13 11:28 ` [PATCH 00/14] prctl.2 man page updates for Linux 5.6 Michael Kerrisk (man-pages)

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