[xen staging] automation/eclair: add deviation for MISRA C:2012 Rule 16.6

[patchbot@xxxxxxx]

commit ef31ffbc3dc124173fc9420988772fa96bc4bf12
Author:     Federico Serafini <federico.serafini@xxxxxxxxxxx>
AuthorDate: Mon Mar 4 11:28:37 2024 +0100
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Mar 8 18:22:49 2024 -0800

    automation/eclair: add deviation for MISRA C:2012 Rule 16.6
    
    Update ECLAIR configuration to take into account the deviations
    agreed during MISRA meetings.
    
    Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 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;
--
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