[xen staging] docs/misra/rules.rst: add rule 14.4

[patchbot@xxxxxxx]

commit 856664f774bd5b66301c5f9022126b61b8cb492d
Author:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
AuthorDate: Tue Feb 13 14:33:34 2024 -0800
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Mar 1 17:44:11 2024 -0800

    docs/misra/rules.rst: add rule 14.4
    
    Signed-off-by: Stefano Stabellini <stefano.stabellini@xxxxxxx>
    Acked-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
---
 docs/misra/rules.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/docs/misra/rules.rst b/docs/misra/rules.rst
index efea063ab9..1e134ccebc 100644
--- a/docs/misra/rules.rst
+++ b/docs/misra/rules.rst
@@ -462,6 +462,15 @@ maintainers if you want to suggest a change.
 
        while(0) and while(1) and alike are allowed.
 
+   * - `Rule 14.4 
<https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite/-/blob/master/R_14_04.c>`_
+     - Required
+     - The controlling expression of an if-statement and the controlling
+       expression of an iteration-statement shall have essentially
+       Boolean type
+     - Automatic conversions of integer types to bool are permitted.
+       Automatic conversions of pointer types to bool are permitted.
+       This rule still applies to enum types.
+
    * - `Rule 16.3 
<https://gitlab.com/MISRA/MISRA-C/MISRA-C-2012/Example-Suite/-/blob/master/R_16_03.c>`_
      - Required
      - An unconditional break statement shall terminate every
--
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