Suppress MISRA C rule 11.3 in MISRA.md

[chinglee-iot]

Suppress MISRA C rule 11.3 in MISRA.md

Description

MISRA C:2012 Rule 11.3

A cast shall not be performed between a pointer to object type and apointer to a different object type

MISRA violation
The rule requires not to cast a pointer to object into a pointer to a different object to prevent undefined behavior due to incorrectly aligned. To support static memory allocation,

FreeRTOS creates static type kernel objects which are aliases for kernel object type with prefix "Static" for data hiding purpose. A static kernel object type is guaranteed to have the same size and alignment with kernel object, which is checked by configASSERT. Static kernel object types include StaticEventGroup_t, StaticQueue_t, StaticStreamBuffer_t, StaticTimer_t and StaticTask_t.

The following is one of the violation example:

pxEventBits = ( EventGroup_t * ) pxEventGroupBuffer; /*lint !e740 !e9087 EventGroup_t and StaticEventGroup_t are deliberately aliased for data hiding purposes and guaranteed to have the same size and alignment requirement - checked by configASSERT(). */

Suppress in the PR

• FreeRTOS supports static allocation. Suppress this rule to allow conversion of static kernel object type to internal kernel object type.

Test Steps

N/A

Checklist:

• I have tested my changes. No regression in existing tests.
• I have modified and/or added unit-tests to cover the code changes in this Pull Request.

Related Issue

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (f2637ba) 93.64% compared to head (09ac528) 93.64%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #857   +/-   ##
=======================================
  Coverage   93.64%   93.64%           
=======================================
  Files           6        6           
  Lines        3179     3179           
  Branches      885      885           
=======================================
  Hits         2977     2977           
  Misses         95       95           
  Partials      107      107           

Flag	Coverage Δ
unittests	93.64% <100.00%> (ø)

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0 Bugs
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No Coverage information
0.0% Duplication