Misc cppcheck fixes

src/buzz/BuzzerFeedbackThread.cpp

@@ -69,10 +69,7 @@ int32_t BuzzerFeedbackThread::runOnce()
     // This thread is primarily event-driven, but we can use runOnce
     // for any periodic tasks if needed in the future
 
-    if (needsUpdate) {
-        needsUpdate = false;
-        // Could add any periodic processing here
-    }
+    needsUpdate = false;
 
     // Run every 100ms when active, less frequently when idle
     return needsUpdate ? 100 : 1000;

src/graphics/Screen.cpp

@@ -1001,7 +1001,7 @@ void Screen::setFrames(FrameFocus focus)
     // Insert favorite frames *after* collecting them all
     if (!favoriteFrames.empty()) {
         fsi.positions.firstFavorite = numframes;
-        for (auto &f : favoriteFrames) {
+        for (const auto &f : favoriteFrames) {
             normalFrames[numframes++] = f;
             indicatorIcons.push_back(icon_node);
         }

src/graphics/draw/ClockRenderer.cpp

@@ -218,7 +218,6 @@ void drawDigitalClockFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int1
         hour %= 12;
         if (hour == 0)
             hour = 12;
-        bool isPM = hour >= 12;
         snprintf(timeString, sizeof(timeString), "%d:%02d", hour, minute);
     } else {
         snprintf(timeString, sizeof(timeString), "%02d:%02d", hour, minute);
@@ -366,9 +365,6 @@ void drawAnalogClockFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
 
     // hour hand radius and y coordinate
     int16_t hourHandRadius = radius * 0.35;
-    if (isHighResolution) {
-        int16_t hourHandRadius = radius * 0.55;
-    }
     int16_t hourHandNoonY = centerY - hourHandRadius;
 
     display->setColor(OLEDDISPLAY_COLOR::WHITE);
@@ -386,7 +382,7 @@ void drawAnalogClockFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16
 
         bool isPM = hour >= 12;
         if (config.display.use_12h_clock) {
-            bool isPM = hour >= 12;
+            isPM = hour >= 12;
             display->setFont(FONT_SMALL);
             int yOffset = isHighResolution ? 1 : 0;
 #ifdef USE_EINK

src/input/ButtonThread.h

@@ -24,7 +24,7 @@ struct ButtonConfig {
     bool touchQuirk = false;
 
     // Constructor to set required parameter
-    ButtonConfig(uint8_t pin = 0) : pinNumber(pin) {}
+    explicit ButtonConfig(uint8_t pin = 0) : pinNumber(pin) {}
 };
 
 #ifndef BUTTON_CLICK_MS
@@ -62,7 +62,7 @@ class ButtonThread : public Observable<const InputEvent *>, public concurrency::
         BUTTON_EVENT_COMBO_SHORT_LONG,
     };
 
-    ButtonThread(const char *name);
+    explicit ButtonThread(const char *name);
     int32_t runOnce() override;
     OneButton userButton;
     void attachButtonInterrupts();

src/mesh/MeshPacketQueue.cpp

@@ -121,7 +121,7 @@ meshtastic_MeshPacket *MeshPacketQueue::remove(NodeNum from, PacketId id, bool t
 bool MeshPacketQueue::find(const NodeNum from, const PacketId id)
 {
     for (auto it = queue.begin(); it != queue.end(); it++) {
-        const auto p = (*it);
+        const auto *p = *it;
         if (getFrom(p) == from && p->id == id) {
             return true;
         }

src/mesh/NodeDB.cpp

@@ -1868,7 +1868,7 @@ UserLicenseStatus NodeDB::getLicenseStatus(uint32_t nodeNum)
     return info->user.is_licensed ? UserLicenseStatus::Licensed : UserLicenseStatus::NotLicensed;
 }
 
-bool NodeDB::checkLowEntropyPublicKey(const meshtastic_Config_SecurityConfig_public_key_t keyToTest)
+bool NodeDB::checkLowEntropyPublicKey(const meshtastic_Config_SecurityConfig_public_key_t &keyToTest)
 {
     if (keyToTest.size == 32) {
         uint8_t keyHash[32] = {0};

src/mesh/NodeDB.h

@@ -279,7 +279,7 @@ class NodeDB
 
     bool hasValidPosition(const meshtastic_NodeInfoLite *n);
 
-    bool checkLowEntropyPublicKey(const meshtastic_Config_SecurityConfig_public_key_t keyToTest);
+    bool checkLowEntropyPublicKey(const meshtastic_Config_SecurityConfig_public_key_t &keyToTest);
 
     bool backupPreferences(meshtastic_AdminMessage_BackupLocation location);
     bool restorePreferences(meshtastic_AdminMessage_BackupLocation location,

src/mesh/PacketHistory.cpp

@@ -181,7 +181,7 @@ PacketHistory::PacketRecord *PacketHistory::find(NodeNum sender, PacketId id)
 }
 
 /** Insert/Replace oldest PacketRecord in recentPackets. */
-void PacketHistory::insert(PacketRecord &r)
+void PacketHistory::insert(const PacketRecord &r)
 {
     uint32_t now_millis = millis(); // Should not jump with time changes
     uint32_t OldtrxTimeMsec = 0;
@@ -308,7 +308,7 @@ bool PacketHistory::wasRelayer(const uint8_t relayer, const uint32_t id, const N
         return false;
     }
 
-    PacketRecord *found = find(sender, id);
+    const PacketRecord *found = find(sender, id);
 
     if (found == NULL) {
 #if VERBOSE_PACKET_HISTORY
@@ -327,7 +327,7 @@ bool PacketHistory::wasRelayer(const uint8_t relayer, const uint32_t id, const N
 
 /* Check if a certain node was a relayer of a packet in the history given iterator
  * @return true if node was indeed a relayer, false if not */
-bool PacketHistory::wasRelayer(const uint8_t relayer, PacketRecord &r)
+bool PacketHistory::wasRelayer(const uint8_t relayer, const PacketRecord &r)
 {
     for (uint8_t i = 0; i < NUM_RELAYERS; i++) {
         if (r.relayed_by[i] == relayer) {

src/mesh/PacketHistory.h

@@ -31,11 +31,11 @@ class PacketHistory
 
     /** Insert/Replace oldest PacketRecord in mx_recentPackets.
      * @param r PacketRecord to insert or replace */
-    void insert(PacketRecord &r); // Insert or replace a packet record in the history
+    void insert(const PacketRecord &r); // Insert or replace a packet record in the history
 
     /* Check if a certain node was a relayer of a packet in the history given iterator
      * @return true if node was indeed a relayer, false if not */
-    bool wasRelayer(const uint8_t relayer, PacketRecord &r);
+    bool wasRelayer(const uint8_t relayer, const PacketRecord &r);
 
     PacketHistory(const PacketHistory &);            // non construction-copyable
     PacketHistory &operator=(const PacketHistory &); // non copyable

src/modules/CannedMessageModule.cpp

@@ -1447,7 +1447,7 @@ void CannedMessageModule::drawEmotePickerScreen(OLEDDisplay *display, OLEDDispla
     int headerY = y;
     int listTop = headerY + headerFontHeight + headerMargin;
 
-    int visibleRows = (display->getHeight() - listTop - 2) / rowHeight;
+    int _visibleRows = (display->getHeight() - listTop - 2) / rowHeight;
     int numEmotes = graphics::numEmotes;
 
     // Clamp highlight index
@@ -1457,11 +1457,11 @@ void CannedMessageModule::drawEmotePickerScreen(OLEDDisplay *display, OLEDDispla
         emotePickerIndex = numEmotes - 1;
 
     // Determine which emote is at the top
-    int topIndex = emotePickerIndex - visibleRows / 2;
+    int topIndex = emotePickerIndex - _visibleRows / 2;
     if (topIndex < 0)
         topIndex = 0;
-    if (topIndex > numEmotes - visibleRows)
-        topIndex = std::max(0, numEmotes - visibleRows);
+    if (topIndex > numEmotes - _visibleRows)
+        topIndex = std::max(0, numEmotes - _visibleRows);
 
     // Draw header/title
     display->setFont(FONT_SMALL);
@@ -1709,7 +1709,7 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
                 } else {
                     // Text: split by words and wrap inside word if needed
                     String text = token.second;
-                    uint16_t pos = 0;
+                    pos = 0;
                     while (pos < text.length()) {
                         // Find next space (or end)
                         int spacePos = text.indexOf(' ', pos);
@@ -1753,7 +1753,7 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
             int yLine = inputY;
             for (auto &line : lines) {
                 int nextX = x;
-                for (auto &token : line) {
+                for (const auto &token : line) {
                     if (token.first) {
                         const graphics::Emote *emote = nullptr;
                         for (int j = 0; j < graphics::numEmotes; j++) {
@@ -1789,19 +1789,20 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
 
         int topMsg;
         std::vector<int> rowHeights;
-        int visibleRows;
+        int _visibleRows;
 
         // Draw header (To: ...)
         drawHeader(display, x, y, buffer);
 
         // Shift message list upward by 3 pixels to reduce spacing between header and first message
         const int listYOffset = y + FONT_HEIGHT_SMALL - 3;
-        visibleRows = (display->getHeight() - listYOffset) / baseRowSpacing;
+        _visibleRows = (display->getHeight() - listYOffset) / baseRowSpacing;
 
         // Figure out which messages are visible and their needed heights
-        topMsg =
-            (messagesCount > visibleRows && currentMessageIndex >= visibleRows - 1) ? currentMessageIndex - visibleRows + 2 : 0;
-        int countRows = std::min(messagesCount, visibleRows);
+        topMsg = (messagesCount > _visibleRows && currentMessageIndex >= _visibleRows - 1)
+                     ? currentMessageIndex - _visibleRows + 2
+                     : 0;
+        int countRows = std::min(messagesCount, _visibleRows);
 
         // --- Build per-row max height based on all emotes in line ---
         for (int i = 0; i < countRows; i++) {
@@ -1828,7 +1829,7 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
             int lineY = yCursor;
             const char *msg = getMessageByIndex(msgIdx);
             int rowHeight = rowHeights[vis];
-            bool highlight = (msgIdx == currentMessageIndex);
+            bool _highlight = (msgIdx == currentMessageIndex);
 
             // --- Multi-emote tokenization ---
             std::vector<std::pair<bool, String>> tokens; // (isEmote, token)
@@ -1881,20 +1882,20 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
             int textYOffset = (rowHeight - FONT_HEIGHT_SMALL) / 2;
 
 #ifdef USE_EINK
-            int nextX = x + (highlight ? 12 : 0);
-            if (highlight)
+            int nextX = x + (_highlight ? 12 : 0);
+            if (_highlight)
                 display->drawString(x + 0, lineY + textYOffset, ">");
 #else
             int scrollPadding = 8;
-            if (highlight) {
+            if (_highlight) {
                 display->fillRect(x + 0, lineY, display->getWidth() - scrollPadding, rowHeight);
                 display->setColor(BLACK);
             }
-            int nextX = x + (highlight ? 2 : 0);
+            int nextX = x + (_highlight ? 2 : 0);
 #endif
 
             // Draw all tokens left to right
-            for (auto &token : tokens) {
+            for (const auto &token : tokens) {
                 if (token.first) {
                     // Emote
                     const graphics::Emote *emote = nullptr;
@@ -1916,19 +1917,19 @@ void CannedMessageModule::drawFrame(OLEDDisplay *display, OLEDDisplayUiState *st
                 }
             }
 #ifndef USE_EINK
-            if (highlight)
+            if (_highlight)
                 display->setColor(WHITE);
 #endif
 
             yCursor += rowHeight;
         }
 
         // Scrollbar
-        if (messagesCount > visibleRows) {
+        if (messagesCount > _visibleRows) {
             int scrollHeight = display->getHeight() - listYOffset;
             int scrollTrackX = display->getWidth() - 6;
             display->drawRect(scrollTrackX, listYOffset, 4, scrollHeight);
-            int barHeight = (scrollHeight * visibleRows) / messagesCount;
+            int barHeight = (scrollHeight * _visibleRows) / messagesCount;
             int scrollPos = listYOffset + (scrollHeight * topMsg) / messagesCount;
             display->fillRect(scrollTrackX, scrollPos, 4, barHeight);
         }