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From: Kees Cook <keescook@chromium.org>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
	Helge Deller <deller@gmx.de>, Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v3 01/12] powerpc: Move and rename func_descr_t
Date: Thu, 10 Feb 2022 16:51:59 -0800	[thread overview]
Message-ID: <202202101651.E6AACB3D4F@keescook> (raw)
In-Reply-To: <637a9a11263afa216fdfa7fb470a54479c67c61c.1634457599.git.christophe.leroy@csgroup.eu>

On Sun, Oct 17, 2021 at 02:38:14PM +0200, Christophe Leroy wrote:
> There are three architectures with function descriptors, try to
> have common names for the address they contain in order to
> refactor some functions into generic functions later.
> 
> powerpc has 'entry'
> ia64 has 'ip'
> parisc has 'addr'
> 
> Vote for 'addr' and update 'func_descr_t' accordingly.
> 
> Move it in asm/elf.h to have it at the same place on all
> three architectures, remove the typedef which hides its real
> type, and change it to a smoother name 'struct func_desc'.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>

I like the name. :)

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook

WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	Andrew Morton <akpm@linux-foundation.org>,
	"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
	Helge Deller <deller@gmx.de>, Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-mm@kvack.org
Subject: Re: [PATCH v3 01/12] powerpc: Move and rename func_descr_t
Date: Fri, 11 Feb 2022 00:51:59 +0000	[thread overview]
Message-ID: <202202101651.E6AACB3D4F@keescook> (raw)
In-Reply-To: <637a9a11263afa216fdfa7fb470a54479c67c61c.1634457599.git.christophe.leroy@csgroup.eu>

On Sun, Oct 17, 2021 at 02:38:14PM +0200, Christophe Leroy wrote:
> There are three architectures with function descriptors, try to
> have common names for the address they contain in order to
> refactor some functions into generic functions later.
> 
> powerpc has 'entry'
> ia64 has 'ip'
> parisc has 'addr'
> 
> Vote for 'addr' and update 'func_descr_t' accordingly.
> 
> Move it in asm/elf.h to have it at the same place on all
> three architectures, remove the typedef which hides its real
> type, and change it to a smoother name 'struct func_desc'.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>

I like the name. :)

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook

WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: linux-arch@vger.kernel.org, linux-ia64@vger.kernel.org,
	linux-parisc@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Helge Deller <deller@gmx.de>,
	linux-kernel@vger.kernel.org,
	"James E.J. Bottomley" <James.Bottomley@hansenpartnership.com>,
	linux-mm@kvack.org, Paul Mackerras <paulus@samba.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 01/12] powerpc: Move and rename func_descr_t
Date: Thu, 10 Feb 2022 16:51:59 -0800	[thread overview]
Message-ID: <202202101651.E6AACB3D4F@keescook> (raw)
In-Reply-To: <637a9a11263afa216fdfa7fb470a54479c67c61c.1634457599.git.christophe.leroy@csgroup.eu>

On Sun, Oct 17, 2021 at 02:38:14PM +0200, Christophe Leroy wrote:
> There are three architectures with function descriptors, try to
> have common names for the address they contain in order to
> refactor some functions into generic functions later.
> 
> powerpc has 'entry'
> ia64 has 'ip'
> parisc has 'addr'
> 
> Vote for 'addr' and update 'func_descr_t' accordingly.
> 
> Move it in asm/elf.h to have it at the same place on all
> three architectures, remove the typedef which hides its real
> type, and change it to a smoother name 'struct func_desc'.
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>

I like the name. :)

Reviewed-by: Kees Cook <keescook@chromium.org>

-- 
Kees Cook

  parent reply	other threads:[~2022-02-11  0:52 UTC|newest]

Thread overview: 99+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-17 12:38 [PATCH v3 00/12] Fix LKDTM for PPC64/IA64/PARISC Christophe Leroy
2021-10-17 12:38 ` Christophe Leroy
2021-10-17 12:38 ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 01/12] powerpc: Move and rename func_descr_t Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-18  5:58   ` Nicholas Piggin
2021-10-18  5:58     ` Nicholas Piggin
2021-10-18  5:58     ` Nicholas Piggin
2022-02-11  0:51   ` Kees Cook [this message]
2022-02-11  0:51     ` Kees Cook
2022-02-11  0:51     ` Kees Cook
2021-10-17 12:38 ` [PATCH v3 02/12] powerpc: Use 'struct func_desc' instead of 'struct ppc64_opd_entry' Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 03/12] powerpc: Remove " Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 04/12] powerpc: Prepare func_desc_t for refactorisation Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-18  6:27   ` Nicholas Piggin
2021-10-18  6:27     ` Nicholas Piggin
2021-10-18  6:27     ` Nicholas Piggin
2021-10-18  7:08     ` Christophe Leroy
2021-10-18  7:08       ` Christophe Leroy
2021-10-18  7:08       ` Christophe Leroy
2022-02-11  0:54   ` Kees Cook
2022-02-11  0:54     ` Kees Cook
2022-02-11  0:54     ` Kees Cook
2022-02-11  7:39     ` Segher Boessenkool
2022-02-11  7:39       ` Segher Boessenkool
2022-02-11  7:39       ` Segher Boessenkool
2022-02-14 10:30     ` Christophe Leroy
2022-02-14 10:30       ` Christophe Leroy
2022-02-14 10:30       ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 05/12] ia64: Rename 'ip' to 'addr' in 'struct fdesc' Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 06/12] asm-generic: Define CONFIG_HAVE_FUNCTION_DESCRIPTORS Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 07/12] asm-generic: Define 'func_desc_t' to commonly describe function descriptors Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-18  6:29   ` Nicholas Piggin
2021-10-18  6:29     ` Nicholas Piggin
2021-10-18  6:29     ` Nicholas Piggin
2021-10-18  7:07     ` Christophe Leroy
2021-10-18  7:07       ` Christophe Leroy
2021-10-18  7:07       ` Christophe Leroy
2021-10-18  9:16       ` Nicholas Piggin
2021-10-18  9:16         ` Nicholas Piggin
2021-10-18  9:16         ` Nicholas Piggin
2021-10-17 12:38 ` [PATCH v3 08/12] asm-generic: Refactor dereference_[kernel]_function_descriptor() Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2022-02-10 10:30   ` Michael Ellerman
2022-02-10 10:30     ` Michael Ellerman
2022-02-10 10:30     ` Michael Ellerman
2022-02-11  0:56     ` Kees Cook
2022-02-11  0:56       ` Kees Cook
2022-02-11  0:56       ` Kees Cook
2022-02-14 10:32       ` Christophe Leroy
2022-02-14 10:32         ` Christophe Leroy
2022-02-14 10:32         ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 09/12] lkdtm: Force do_nothing() out of line Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 10/12] lkdtm: Really write into kernel text in WRITE_KERN Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38 ` [PATCH v3 11/12] lkdtm: Fix execute_[user]_location() Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-12-17 11:49   ` Christophe Leroy
2021-12-17 11:49     ` Christophe Leroy
2021-12-17 11:49     ` Christophe Leroy
2021-12-17 17:12     ` Helge Deller
2021-12-17 17:12       ` Helge Deller
2021-12-17 17:12       ` Helge Deller
2022-01-19 19:28     ` Christophe Leroy
2022-01-19 19:28       ` Christophe Leroy
2022-01-19 19:28       ` Christophe Leroy
2022-01-19 21:58       ` Kees Cook
2022-01-19 22:00         ` Kees Cook
2022-01-19 22:00         ` Kees Cook
2022-02-11  1:01   ` Kees Cook
2022-02-11  1:01     ` Kees Cook
2022-02-11  1:01     ` Kees Cook
2021-10-17 12:38 ` [PATCH v3 12/12] lkdtm: Add a test for function descriptors protection Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2021-10-17 12:38   ` Christophe Leroy
2022-02-11  1:09   ` Kees Cook
2022-02-11  1:09     ` Kees Cook
2022-02-11  1:09     ` Kees Cook
2022-02-14 10:34     ` Christophe Leroy
2022-02-14 10:34       ` Christophe Leroy
2022-02-14 10:34       ` Christophe Leroy

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