MdeModulePkg/SetupBrowserDxe: Do not reconnect driver with form-update

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=2701

Recording to the spec, the reconnect is activated upon exiting of the
formset or the browser. Exiting is by user but form-browser internal
logic. That means the reconnection is only happened when user press
ESC or _EXIT action to exit form.
Driver callback may update HII form dynamically so form-browser needs
to refresh its internal data. It's not exiting formset for user
exactly and they didn't know what happened. So use a flag to record
that and do not reconnect driver if updated by callback.

Signed-off-by: Walon Li <walon.li@hpe.com>
Reviewed-by: Dandan Bi <dandan.bi@intel.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
index bafee4c612..7f85873730 100644
--- a/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
+++ b/MdeModulePkg/Universal/SetupBrowserDxe/Presentation.c
@@ -19,6 +19,7 @@ LIST_ENTRY         mRefreshEventList = INITIALIZE_LIST_HEAD_VARIABLE (mRefreshEv
 UINT16             mCurFakeQestId;

 FORM_DISPLAY_ENGINE_FORM gDisplayFormData;

 BOOLEAN            mFinishRetrieveCall = FALSE;

+BOOLEAN            mDynamicFormUpdated = FALSE;

 

 /**

   Check whether the ConfigAccess protocol is available.

@@ -1762,6 +1763,7 @@ FormUpdateNotify (
   )

 {

   mHiiPackageListUpdated = TRUE;

+  mDynamicFormUpdated = TRUE;

 

   return EFI_SUCCESS;

 }