diff --git a/fpga/.gitlab-ci.yml b/fpga/.gitlab-ci.yml
index c57867823..3f92f75ce 100644
--- a/fpga/.gitlab-ci.yml
+++ b/fpga/.gitlab-ci.yml
@@ -72,7 +72,9 @@ test:cppcheck:
                gpu/
                src/
                lib/
-               tests/unit/ | tee cppcheck.log
+               tests/unit/ 
+               --suppress=unmatchedSuppression
+               -igpu/thirdparty | tee cppcheck.log
   image: ${DOCKER_IMAGE_DEV}:${DOCKER_TAG_DEV}
   dependencies:
     - build:source
diff --git a/fpga/common b/fpga/common
index 1912f2106..51e32a4b9 160000
--- a/fpga/common
+++ b/fpga/common
@@ -1 +1 @@
-Subproject commit 1912f2106453cea3a20358942ad7f360b2129bc3
+Subproject commit 51e32a4b9164b176da5ba3843b645ad6b49b3ec2
diff --git a/fpga/include/villas/fpga/core.hpp b/fpga/include/villas/fpga/core.hpp
index 43c0cbe1e..9614d5f35 100644
--- a/fpga/include/villas/fpga/core.hpp
+++ b/fpga/include/villas/fpga/core.hpp
@@ -54,12 +54,12 @@ class InterruptController;
 class IpIdentifier {
 public:
 
-	IpIdentifier(Vlnv vlnv = Vlnv::getWildcard(), std::string name = "") :
+	IpIdentifier(const Vlnv &vlnv = Vlnv::getWildcard(), const std::string &name = "") :
 	    vlnv(vlnv),
 	    name(name)
 	{ }
 
-	IpIdentifier(std::string vlnvString, std::string name = "") :
+	IpIdentifier(const std::string &vlnvString, const std::string &name = "") :
 	    vlnv(vlnvString),
 	    name(name)
 	{ }
diff --git a/fpga/include/villas/fpga/ips/dma.hpp b/fpga/include/villas/fpga/ips/dma.hpp
index dcf36d752..892fd66cf 100644
--- a/fpga/include/villas/fpga/ips/dma.hpp
+++ b/fpga/include/villas/fpga/ips/dma.hpp
@@ -43,7 +43,6 @@ public:
 	virtual
 	bool init() override;
 
-	virtual
 	bool reset() override;
 
 	// Memory-mapped to stream (MM2S)
diff --git a/fpga/include/villas/fpga/ips/rtds2gpu.hpp b/fpga/include/villas/fpga/ips/rtds2gpu.hpp
index 7dfd8a120..d44fdb330 100644
--- a/fpga/include/villas/fpga/ips/rtds2gpu.hpp
+++ b/fpga/include/villas/fpga/ips/rtds2gpu.hpp
@@ -56,8 +56,6 @@ public:
 		doorbellRegister = 0;
 	}
 
-	static constexpr const char* registerMemory = "Reg";
-
 	std::list<MemoryBlockName> getMemoryBlocks() const
 	{
 		return {
diff --git a/fpga/include/villas/fpga/vlnv.hpp b/fpga/include/villas/fpga/vlnv.hpp
index ac865201d..0f6d1a752 100644
--- a/fpga/include/villas/fpga/vlnv.hpp
+++ b/fpga/include/villas/fpga/vlnv.hpp
@@ -41,7 +41,7 @@ public:
 	    version("")
 	{ }
 
-	Vlnv(std::string s)
+	Vlnv(const std::string &s)
 	{
 		parseFromString(s);
 	}
diff --git a/fpga/lib/ips/dma.cpp b/fpga/lib/ips/dma.cpp
index d159362d1..4b2cb4ad6 100644
--- a/fpga/lib/ips/dma.cpp
+++ b/fpga/lib/ips/dma.cpp
@@ -207,7 +207,7 @@ bool Dma::reset()
 
 Dma::~Dma()
 {
-	reset();
+	Dma::reset();
 }
 
 bool Dma::memcpy(const MemoryBlock &src, const MemoryBlock &dst, size_t len)
diff --git a/fpga/lib/ips/emc.cpp b/fpga/lib/ips/emc.cpp
index 62d4a3cfb..c4eeabba5 100644
--- a/fpga/lib/ips/emc.cpp
+++ b/fpga/lib/ips/emc.cpp
@@ -113,13 +113,12 @@ EMC::flash(uint32_t offset, uint32_t length, uint8_t *data)
 	int ret = XST_FAILURE;
 	uint32_t start = offset;
 
-	uint8_t *verify_data = new uint8_t[length];
-
 	/* Reset the Flash Device. This clears the ret registers and puts
 	 * the device in Read mode. */
 	ret = XFlash_Reset(&xflash);
-	if (ret != XST_SUCCESS)
+	if (ret != XST_SUCCESS){
 		return false;
+	}
 
 	/* Perform an unlock operation before the erase operation for the Intel
 	 * Flash. The erase operation will result in an error if the block is
@@ -128,30 +127,37 @@ EMC::flash(uint32_t offset, uint32_t length, uint8_t *data)
 	    (xflash.CommandSet == XFL_CMDSET_INTEL_EXTENDED) ||
 	    (xflash.CommandSet == XFL_CMDSET_INTEL_G18)) {
 		ret = XFlash_Unlock(&xflash, offset, 0);
-		if(ret != XST_SUCCESS)
+		if(ret != XST_SUCCESS){
 			return false;
+		}
 	}
 
 	// Perform the Erase operation.
 	ret = XFlash_Erase(&xflash, start, length);
-	if (ret != XST_SUCCESS)
+	if (ret != XST_SUCCESS){;
 		return false;
+	}
 
 	// Perform the Write operation.
 	ret = XFlash_Write(&xflash, start, length, data);
-	if (ret != XST_SUCCESS)
+	if (ret != XST_SUCCESS){
 		return false;
+	}
 
 	// Perform the read operation.
+	uint8_t *verify_data = new uint8_t[length];
 	ret = XFlash_Read(&xflash, start, length, verify_data);
 		if(ret != XST_SUCCESS) {
+			delete[] verify_data;
 			return false;
 	}
 
 	// Compare the data read against the data Written.
 	for (unsigned i = 0; i < length; i++) {
-		if (verify_data[i] != data[i])
+		if (verify_data[i] != data[i]){
+			delete[] verify_data;
 			return false;
+		}
 	}
 
 	delete[] verify_data;
diff --git a/fpga/src/pcimem.c b/fpga/src/pcimem.c
index 8c3814667..4494f859a 100644
--- a/fpga/src/pcimem.c
+++ b/fpga/src/pcimem.c
@@ -75,14 +75,14 @@ int main(int argc, char **argv) {
 		PRINT_ERROR;
 
 	printf("%s opened.\n", filename);
-	printf("Target offset is %#jx, page size is %lu\n", (intmax_t) target, sysconf(_SC_PAGE_SIZE));
+	printf("Target offset is %#jx, page size is %lu\n", (uintmax_t) target, sysconf(_SC_PAGE_SIZE));
 
 	fflush(stdout);
 
 	// Map one page
 	printf("mmap(%d, %lu, %#x, %#x, %d, %#jx)\n", 0,
 		MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED,
-		fd, (intmax_t) target);
+		fd, (uintmax_t) target);
 
 	map_base = mmap(0, MAP_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, fd, target & ~MAP_MASK);
 
@@ -92,7 +92,7 @@ int main(int argc, char **argv) {
 	printf("PCI Memory mapped to address %p.\n", map_base);
 	fflush(stdout);
 
-	virt_addr = map_base + (target & MAP_MASK);
+	virt_addr = (uint8_t*) map_base + (target & MAP_MASK);
 
 	switch(access_type) {
 		case 'b':
@@ -109,7 +109,7 @@ int main(int argc, char **argv) {
 			exit(2);
 	}
 
-	printf("Value at offset %#jx (%p): %#x\n", (intmax_t) target, virt_addr, read_result);
+	printf("Value at offset %#jx (%p): %#x\n", (uintmax_t) target, virt_addr, read_result);
 	fflush(stdout);
 
 	if (argc > 4) {
diff --git a/fpga/src/villas-fpga-cat.cpp b/fpga/src/villas-fpga-cat.cpp
index ace383da7..5b4f54bd7 100644
--- a/fpga/src/villas-fpga-cat.cpp
+++ b/fpga/src/villas-fpga-cat.cpp
@@ -135,7 +135,7 @@ int main(int argc, char* argv[])
 
 			for (size_t i = 0; i*4 < bytesRead; i++) {
 				int32_t ival = mem[cur][i];
-				float fval = *((float*)(&ival));
+				float fval = *((float*)(&ival)); // cppcheck-suppress invalidPointerCast
 				//std::cerr << std::hex << ival << ",";
 				std::cerr << fval << std::endl;
 				/*int64_t ival = (int64_t)(mem[1] & 0xFFFF) << 48 |
diff --git a/fpga/tests/unit/gpu.cpp b/fpga/tests/unit/gpu.cpp
index 4a7087274..a8a3a37b2 100644
--- a/fpga/tests/unit/gpu.cpp
+++ b/fpga/tests/unit/gpu.cpp
@@ -118,11 +118,10 @@ Test(fpga, gpu_dma, .description = "GPU DMA tests")
 
 		if (dma != nullptr and dma->connectLoopback()) {
 			memcpyFuncs.push_back({
-			    "DMA memcpy", [&]() {
+			    "DMA memcpy", [&] (){
 				dma->makeAccesibleFromVA(src.getMemoryBlock());
-				dma->makeAccesibleFromVA(dst.getMemoryBlock()));
-
-			        dma->memcpy(src.getMemoryBlock(), dst.getMemoryBlock(), len);
+				dma->makeAccesibleFromVA(dst.getMemoryBlock());
+				dma->memcpy(src.getMemoryBlock(), dst.getMemoryBlock(), len);
 			    }});
 		}