[XEN PATCH] automation/eclair: add deviation for MISRA C:2012 Rule 16.6

[Federico Serafini <federico.serafini@bugseng.com>]

Update ECLAIR configuration to take into account the deviations
agreed during MISRA meetings.

Signed-off-by: Federico Serafini <federico.serafini@bugseng.com>
---
Changes in v2:
- rephrased to make sure the deviation is not interpreted as a suggestion.
---
 automation/eclair_analysis/ECLAIR/deviations.ecl | 4 ++++
 docs/misra/deviations.rst                        | 6 ++++++
 2 files changed, 10 insertions(+)

diff --git a/automation/eclair_analysis/ECLAIR/deviations.ecl b/automation/eclair_analysis/ECLAIR/deviations.ecl
index 02eae39786..9ac3ee4dfd 100644
--- a/automation/eclair_analysis/ECLAIR/deviations.ecl
+++ b/automation/eclair_analysis/ECLAIR/deviations.ecl
@@ -378,6 +378,10 @@ explicit comment indicating the fallthrough intention is present."
 -config=MC3R1.R16.3,reports+={safe, "any_area(end_loc(any_exp(text(^(?s).*/\\* [fF]all ?through.? \\*/.*$,0..1))))"}
 -doc_end
 
+-doc_begin="A switch statement with a single switch clause and no default label may be used in place of an equivalent if statement if it is considered to improve readability."
+-config=MC3R1.R16.6,switch_clauses+={deliberate, "default(0)"}
+-doc_end
+
 #
 # Series 18.
 #
diff --git a/docs/misra/deviations.rst b/docs/misra/deviations.rst
index 123c78e20a..ce855ddae6 100644
--- a/docs/misra/deviations.rst
+++ b/docs/misra/deviations.rst
@@ -322,6 +322,12 @@ Deviations related to MISRA C:2012 Rules:
          - /\* Fallthrough \*/
          - /\* Fallthrough. \*/
 
+   * - R16.6
+     - A switch statement with a single switch clause and no default label may
+       be used in place of an equivalent if statement if it is considered to
+       improve readability.
+     - Tagged as `deliberate` for ECLAIR.
+
    * - R20.7
      - Code violating Rule 20.7 is safe when macro parameters are used:
        (1) as function arguments;
-- 
2.34.1