[XEN PATCH][for-4.19 0/2] address violations of MISRA C:2012 Rule 11.9

[Nicola Vetrini <nicola.vetrini@xxxxxxxxxxx>]

Rule 11.9 forbids the usage of '0' as a null pointer constant, therefore uses of
this pattern have been amended. One exception, recorded in rules.rst, is in
__ACCESS_ONCE to do a scalar type check.

The series only touches common headers, therefore it should be safe to include
in the for-4.19 branch.

Nicola Vetrini (2):
  xen: introduce a deviation for Rule 11.9
  xen/spinlock: fix use of 0 as a null pointer constant

 .../eclair_analysis/ECLAIR/deviations.ecl     | 23 +++++++------------
 docs/misra/rules.rst                          |  3 ++-
 xen/include/xen/compiler.h                    |  5 +++-
 xen/include/xen/kernel.h                      |  2 +-
 xen/include/xen/spinlock.h                    |  2 +-
 5 files changed, 16 insertions(+), 19 deletions(-)

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