diff --git a/src/portable/ohci/ohci.c b/src/portable/ohci/ohci.c
index c7f4c04ad..c59d4755e 100644
--- a/src/portable/ohci/ohci.c
+++ b/src/portable/ohci/ohci.c
@@ -612,12 +612,11 @@ static inline ohci_ed_t* gtd_get_ed(ohci_gtd_t const * const p_qtd)
 }
 
 static gtd_extra_data_t *gtd_get_extra_data(ohci_gtd_t const * const gtd) {
-  if ( gtd_is_control(gtd) )
-  {
-    return &ohci_data.control[((intptr_t)gtd - (intptr_t)&ohci_data.control->gtd) / sizeof(ohci_data.control[0])].gtd_data;
-  }else
-  {
-    return &ohci_data.gtd_data[gtd - ohci_data.gtd_pool];
+  if ( gtd_is_control(gtd) ) {
+    uint8_t idx = ((uintptr_t)gtd - (uintptr_t)&ohci_data.control->gtd) / sizeof(ohci_data.control[0]);
+    return &ohci_data.gtd_extra_control[idx];
+  }else {
+    return &ohci_data.gtd_extra[gtd - ohci_data.gtd_pool];
   }
 }
 
@@ -661,7 +660,7 @@ static void done_queue_isr(uint8_t hostid)
       // --> HC will not process Control list (due to service ratio when Bulk list not empty)
       // To walk-around this, the halted ED will have TailP = HeadP (empty list condition), when clearing halt
       // the TailP must be set back to NULL for processing remaining TDs
-      if ((event != XFER_RESULT_SUCCESS))
+      if (event != XFER_RESULT_SUCCESS)
       {
         ed->td_tail &= 0x0Ful;
         ed->td_tail |= tu_align16(ed->td_head.address); // mark halted EP as empty queue
diff --git a/src/portable/ohci/ohci.h b/src/portable/ohci/ohci.h
index cb23396bc..4feefd771 100644
--- a/src/portable/ohci/ohci.h
+++ b/src/portable/ohci/ohci.h
@@ -154,15 +154,12 @@ typedef struct TU_ATTR_ALIGNED(32)
 
 TU_VERIFY_STATIC( sizeof(ochi_itd_t) == 32, "size is not correct" );
 
-typedef struct
-{
-  uint16_t expected_bytes : 13; // can be up to 8192 bytes long so use 13 bits
-  uint16_t                : 3; // can be used
+typedef struct {
+  uint16_t expected_bytes; // up to 8192 bytes so max is 13 bits
 } gtd_extra_data_t;
 
 // structure with member alignment required from large to small
-typedef struct TU_ATTR_ALIGNED(256)
-{
+typedef struct TU_ATTR_ALIGNED(256) {
   ohci_hcca_t hcca;
 
   ohci_ed_t bulk_head_ed; // static bulk head (dummy)
@@ -172,16 +169,17 @@ typedef struct TU_ATTR_ALIGNED(256)
   struct {
     ohci_ed_t ed;
     ohci_gtd_t gtd;
-    gtd_extra_data_t gtd_data;
-  }control[CFG_TUH_DEVICE_MAX+CFG_TUH_HUB+1];
+  } control[CFG_TUH_DEVICE_MAX + CFG_TUH_HUB + 1];
 
   //  ochi_itd_t itd[OHCI_MAX_ITD]; // itd requires alignment of 32
   ohci_ed_t ed_pool[ED_MAX];
   ohci_gtd_t gtd_pool[GTD_MAX];
-  gtd_extra_data_t gtd_data[GTD_MAX]; // extra data needed by TDs that can't fit in the TD struct
+
+  // extra data needed by TDs that can't fit in the TD struct
+  gtd_extra_data_t gtd_extra_control[CFG_TUH_DEVICE_MAX + CFG_TUH_HUB + 1];
+  gtd_extra_data_t gtd_extra[GTD_MAX];
 
   volatile uint16_t frame_number_hi;
-
 } ohci_data_t;
 
 //--------------------------------------------------------------------+