nuttxpr commented on PR #14701:
URL: https://github.com/apache/nuttx/pull/14701#issuecomment-2464618190

   [**\[Experimental Bot, please feedback 
here\]**](https://github.com/search?q=repo%3Aapache%2Fnuttx+13552&type=issues)
   
   
   
   This PR appears to mostly meet the NuttX requirements, but has some gaps 
that need addressing before it's ready. Here's a breakdown:
   
   **Strengths:**
   
   * **Clear Summary:** The summary explains the "why," "what," and "how" of 
the change effectively.  The link to the LVGL code showing the usage is helpful.
   * **Impact Acknowledged:** The impact section correctly identifies the 
potential memory issue and seeks feedback on how to handle it. This proactive 
approach is good.
   * **Testing Information Provided:**  The testing section specifies the 
hardware and software environment used for verification. The instructions for 
configuring the board are clear.  Referencing how LVGL detects the changes is 
also good.
   
   
   **Weaknesses:**
   
   * **Missing Issue References:**  The summary should link to a related NuttX 
or NuttX Apps issue if one exists. If not, consider creating one to track the 
feature request/bug this PR addresses.
   * **Impact Needs More Detail:** While the memory impact is mentioned, other 
impacts need to be addressed more thoroughly.  Even if the answer is "NO", a 
brief explanation is helpful for reviewers.  For example:
       * **Impact on user:**  Even if LVGL adapts automatically, will *other* 
users of the framebuffer device need to change their code?
       * **Impact on build:**  Does adding double buffering change any build 
dependencies or configurations?
       * **Impact on hardware:** Is this change specific to the ESP32-S3, or 
could it be applied to other LCD drivers?
       * **Impact on documentation:** Does this change require updating any 
documentation (e.g., the framebuffer driver documentation, board configuration 
documentation)?  If so, has the documentation been updated in the PR?
       * **Impact on security:** While unlikely, it's good practice to consider 
security implications of any change.  Explicitly stating "NO" with a brief 
justification is sufficient.
       * **Impact on compatibility:**  Does this change break compatibility 
with any existing applications or configurations?
   * **Missing Testing Logs:** The testing section *describes* the testing but 
doesn't include any actual logs.  Include relevant log output before and after 
the change to demonstrate the functionality and the absence of regressions.  
Demonstrate both single buffering and double buffering behavior.  Show what 
happens if the system has insufficient memory.
   * **Kconfig Decision:** The PR raises the question about a Kconfig option 
but doesn't propose a solution.  Suggest a concrete Kconfig option (name, 
description, default value) in the PR description.  This allows reviewers to 
discuss the specific proposal.
   
   
   **Recommendations:**
   
   1. **Create a related issue:** File an issue in the appropriate repository 
(NuttX or NuttX-Apps) and link it in the PR summary.
   2. **Complete the Impact section:** Address all impact points with specific 
details, even if the answer is "NO."
   3. **Provide testing logs:** Include actual log output demonstrating the 
behavior before and after the change, covering both positive and negative cases 
(sufficient and insufficient memory).
   4. **Propose a Kconfig option:**  Suggest a specific Kconfig option (name, 
description, default value) to control double buffering. Justify your choice 
(e.g., why enabled by default or disabled by default).
   
   
   By addressing these points, the PR will be much stronger and easier for 
reviewers to evaluate.
   


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