INLINE COMMENTS

View InlineFwupdSourcesBackend.cpp:151

{
    return  m_actions ;
}

return {} and remove the unused attribute.

View InlineFwupdSourcesBackend.h:46

    bool supportsAdding() const override { return false; }
    void eulaRequired(const QString& remoteName , const QString& licenseAgreement);
    void populateSources();

There's no space before a coma.

View InlineFwupdSourcesBackend.h:54

    FwupdSourcesModel* m_sources;
    QList<QAction*> m_actions;
};

Remove.

View InlineFwupdTransaction.cpp:99

        QNetworkAccessManager *manager = new QNetworkAccessManager(this);
        connect(manager, SIGNAL(finished(QNetworkReply*)),this, SLOT(fwupdInstall(QNetworkReply*)));
        manager->get(QNetworkRequest(uri));

Use proper connect syntax.

View InlineFwupdTransaction.cpp:160

void FwupdTransaction::iterateTransaction()
{

Give it a name that says what it does, this is just copied from the dummy and thus it has a meaningless name.