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From: Nicola Vetrini <nicola.vetrini@bugseng.com>
To: xen-devel@lists.xenproject.org
Cc: sstabellini@kernel.org, michal.orzel@amd.com,
	xenia.ragiadakou@amd.com, ayan.kumar.halder@amd.com,
	consulting@bugseng.com, jbeulich@suse.com,
	andrew.cooper3@citrix.com, roger.pau@citrix.com,
	Nicola Vetrini <nicola.vetrini@bugseng.com>,
	Simone Ballarin <simone.ballarin@bugseng.com>,
	Doug Goldstein <cardoe@cardoe.com>,
	George Dunlap <george.dunlap@citrix.com>,
	Julien Grall <julien@xen.org>, Wei Liu <wl@xen.org>,
	Bertrand Marquis <bertrand.marquis@arm.com>,
	Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>,
	Paul Durrant <paul@xen.org>
Subject: [XEN PATCH v2 0/8] address violations of MISRA C:2012 Rule 10.1
Date: Thu, 12 Oct 2023 17:28:44 +0200	[thread overview]
Message-ID: <cover.1697123806.git.nicola.vetrini@bugseng.com> (raw)

The widely-used construct
(x & -x), where x is an unsigned integer quantity represented in 2's complement,
does yield the expected result. Since all architectures that are targets for
compliance do fulfill such requirements, the construct is deemed safe and
deviated.

The use of 'DECLARE_BITMAP(features, IOMMU_FEAT_count);' is deviated, to avoid
harming code readability.

On the contrary, other uses of inappropriate types are changed.

Changes in v2:
- the patch 'x86/cpu-policy' has been dropped, in favour of the patch submitted
  by Andrew Cooper.

Nicola Vetrini (8):
  xen/include: add macro LOWEST_BIT
  arm/bitops: encapsulate violation of MISRA C:2012 Rule 10.1
  xen/pdx: amend definition of PDX_GROUP_COUNT
  x86_64/mm: express macro CNT using LOWEST_BIT
  x86/io_apic: address violation of MISRA C:2012 Rule 10.1
  x86/mce: Move MC_NCLASSES into the enum mctelem_class
  xen/types: address Rule 10.1 for DECLARE_BITMAP use
  xen/compat: use BUILD_BUG_ON in CHECK_SIZE macros

 .../eclair_analysis/ECLAIR/deviations.ecl      |  6 ++++++
 docs/misra/safe.json                           |  8 ++++++++
 xen/arch/arm/include/asm/bitops.h              |  6 ++++--
 xen/arch/x86/cpu/mcheck/mctelem.c              |  2 --
 xen/arch/x86/cpu/mcheck/mctelem.h              |  5 +++--
 xen/arch/x86/include/asm/io_apic.h             |  7 ++++---
 xen/arch/x86/x86_64/mm.c                       | 12 ++++++------
 xen/include/xen/compat.h                       | 18 +++++++++++++-----
 xen/include/xen/iommu.h                        |  1 +
 xen/include/xen/macros.h                       |  6 ++++--
 xen/include/xen/pdx.h                          |  2 +-
 xen/include/xen/types.h                        |  8 ++++++++
 12 files changed, 58 insertions(+), 23 deletions(-)

--
2.34.1


             reply	other threads:[~2023-10-12 15:29 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-12 15:28 Nicola Vetrini [this message]
2023-10-12 15:28 ` [XEN PATCH][for-next][for-4.19 v2 1/8] xen/include: add macro LOWEST_BIT Nicola Vetrini
2023-10-12 23:31   ` Stefano Stabellini
2023-10-13 10:40     ` Nicola Vetrini
2023-10-13  8:25   ` Julien Grall
2023-10-13 10:43     ` Nicola Vetrini
2023-10-16 15:33   ` Jan Beulich
2023-10-16 16:17     ` Nicola Vetrini
2023-10-16 16:30       ` Jan Beulich
2023-10-17  0:57         ` Stefano Stabellini
2023-10-19 14:26         ` Nicola Vetrini
2023-10-19 19:58           ` Stefano Stabellini
2023-10-20  6:00             ` Jan Beulich
2023-10-20 10:40               ` Nicola Vetrini
2023-10-20 13:28                 ` Jan Beulich
2023-10-20 13:13             ` Luca Fancellu
2023-10-20 18:07               ` Stefano Stabellini
2023-10-20 18:11                 ` Luca Fancellu
2023-10-12 15:28 ` [XEN PATCH][for-4.19 v2 2/8] arm/bitops: encapsulate violation of MISRA C:2012 Rule 10.1 Nicola Vetrini
2023-10-12 23:31   ` Stefano Stabellini
2023-10-12 15:28 ` [XEN PATCH][for-4.19 v2 3/8] xen/pdx: amend definition of PDX_GROUP_COUNT Nicola Vetrini
2023-10-12 23:33   ` Stefano Stabellini
2023-10-12 15:28 ` [XEN PATCH][for-next v2 4/8] x86_64/mm: express macro CNT using LOWEST_BIT Nicola Vetrini
2023-10-12 23:34   ` Stefano Stabellini
2023-10-12 15:28 ` [XEN PATCH][for-next v2 5/8] x86/io_apic: address violation of MISRA C:2012 Rule 10.1 Nicola Vetrini
2023-10-16 15:42   ` Jan Beulich
2023-10-16 16:36     ` Nicola Vetrini
2023-10-17  6:58       ` Jan Beulich
2023-10-16 15:42   ` Jan Beulich
2023-10-16 16:36     ` Nicola Vetrini
2023-10-12 15:28 ` [XEN PATCH][for-next v2 6/8] x86/mce: Move MC_NCLASSES into the enum mctelem_class Nicola Vetrini
2023-10-12 23:44   ` Stefano Stabellini
2023-10-16 15:45   ` Jan Beulich
2023-10-16 16:05     ` Nicola Vetrini
2023-10-17  7:02       ` Jan Beulich
2023-10-17  8:12         ` Nicola Vetrini
2023-10-17  8:26           ` Jan Beulich
2023-10-17  9:43             ` Nicola Vetrini
2023-10-17  9:54               ` Jan Beulich
2023-10-19 14:33                 ` Nicola Vetrini
2023-10-12 15:28 ` [XEN PATCH][for-4.19 v2 7/8] xen/types: address Rule 10.1 for DECLARE_BITMAP use Nicola Vetrini
2023-10-16 15:49   ` Jan Beulich
2023-10-17  8:54     ` Nicola Vetrini
2023-10-12 15:28 ` [XEN PATCH][for-4.19 v2 8/8] xen/compat: use BUILD_BUG_ON in CHECK_SIZE macros Nicola Vetrini
2023-10-17  6:09   ` Jan Beulich
2023-10-19 14:35     ` Nicola Vetrini

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