Merge pull request #1467 from kilograham/rp2040_cleanup

Minor cleanup of RP2040 code post addition of Pico-PIO-USB

src/portable/raspberrypi/rp2040/hcd_rp2040.c

@@ -537,7 +537,11 @@ bool hcd_setup_send(uint8_t rhport, uint8_t dev_addr, uint8_t const setup_packet
     (void) rhport;
 
     // Copy data into setup packet buffer
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Warray-bounds"
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
     memcpy((void*)&usbh_dpram->setup_packet[0], setup_packet, 8);
+#pragma GCC diagnostic pop
 
     // Configure EP0 struct with setup info for the trans complete
     struct hw_endpoint *ep = _hw_endpoint_allocate(0);

src/portable/raspberrypi/rp2040/rp2040_usb.c

@@ -58,9 +58,9 @@ void rp2040_usb_init(void)
   unreset_block_wait(RESETS_RESET_USBCTRL_BITS);
 
   // Clear any previous state just in case
-  // TODO Suppress warning array-bounds with gcc11
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Warray-bounds"
+#pragma GCC diagnostic ignored "-Wstringop-overflow"
   memset(usb_hw, 0, sizeof(*usb_hw));
   memset(usb_dpram, 0, sizeof(*usb_dpram));
 #pragma GCC diagnostic pop