[fix] various dma/area fixes after -Wall

Less than perfect types for the most part, plus a few unused variables.

include/aml/dma/linux-par.h

@@ -33,7 +33,7 @@ struct aml_dma_linux_par_thread_data {
 	 * A logical identifier of the thread in charge for
 	 * the request progress.
 	 **/
-	int tid;
+	size_t tid;
 	/** The actual thread in charge for the request progress**/
 	pthread_t thread;
 	/** The dma containing sequential operations **/
@@ -70,7 +70,7 @@ struct aml_dma_linux_par_data {
 struct aml_dma_linux_par_ops {
 	void *(*do_thread)(void *thread_data);
 	int (*do_copy)(struct aml_dma_linux_par_data *data,
-		       struct aml_dma_request_linux_par *request, int tid);
+		       struct aml_dma_request_linux_par *request, size_t tid);
 };
 
 /**

src/area/linux.c

@@ -47,6 +47,8 @@ aml_area_linux_check_binding(struct aml_area_linux_data *area_data,
 {
 	int err, mode, i;
 	struct bitmask *nodeset;
+	// unused parameter
+	(void)size;
 
 	nodeset = numa_allocate_nodemask();
 	if (nodeset == NULL)
@@ -209,7 +211,6 @@ int aml_area_linux_init(struct aml_area *area, const int mmap_flags,
 			const int binding_flags)
 {
 	struct aml_area_linux_data *data;
-	int err;
 
 	if (area == NULL)
 		return -AML_EINVAL;

src/dma/dma_linux_par.c

@@ -66,7 +66,7 @@ void *aml_dma_linux_par_do_thread(void *arg)
 }
 
 int aml_dma_linux_par_do_copy(struct aml_dma_linux_par_data *dma,
-			      struct aml_dma_request_linux_par *req, int tid)
+			      struct aml_dma_request_linux_par *req, size_t tid)
 {
 	assert(dma != NULL);
 	assert(req != NULL);
@@ -125,7 +125,7 @@ int aml_dma_linux_par_create_request(struct aml_dma_data *d,
 	}
 	pthread_mutex_unlock(&dma->data.lock);
 
-	for (int i = 0; i < dma->data.nbthreads; i++) {
+	for (size_t i = 0; i < dma->data.nbthreads; i++) {
 		struct aml_dma_linux_par_thread_data *rd = &req->thread_data[i];
 
 		rd->req = req;
@@ -149,7 +149,7 @@ int aml_dma_linux_par_destroy_request(struct aml_dma_data *d,
 		(struct aml_dma_request_linux_par *)r;
 
 	/* we cancel and join, instead of killing, for a cleaner result */
-	for (int i = 0; i < dma->data.nbthreads; i++) {
+	for (size_t i = 0; i < dma->data.nbthreads; i++) {
 		pthread_cancel(req->thread_data[i].thread);
 		pthread_join(req->thread_data[i].thread, NULL);
 	}
@@ -172,7 +172,7 @@ int aml_dma_linux_par_wait_request(struct aml_dma_data *d,
 	struct aml_dma_request_linux_par *req =
 		(struct aml_dma_request_linux_par *)r;
 
-	for (int i = 0; i < dma->data.nbthreads; i++)
+	for (size_t i = 0; i < dma->data.nbthreads; i++)
 		pthread_join(req->thread_data[i].thread, NULL);
 
 	/* destroy a completed request */
@@ -244,7 +244,7 @@ int aml_dma_linux_par_init(struct aml_dma *d, size_t nbreqs,
 			sizeof(struct aml_dma_request_linux_par),
 			offsetof(struct aml_dma_request_linux_par, type),
 			AML_DMA_REQUEST_TYPE_INVALID);
-	for (int i = 0; i < nbreqs; i++) {
+	for (size_t i = 0; i < nbreqs; i++) {
 		struct aml_dma_request_linux_par *req =
 			aml_vector_get(&dma->data.requests, i);
 
@@ -262,7 +262,7 @@ void aml_dma_linux_par_fini(struct aml_dma *d)
 	if (d == NULL || d->data == NULL)
 		return;
 	dma = (struct aml_dma_linux_par *)d->data;
-	for (int i = 0; i < aml_vector_size(&dma->data.requests); i++) {
+	for (size_t i = 0; i < aml_vector_size(&dma->data.requests); i++) {
 		struct aml_dma_request_linux_par *req =
 			aml_vector_get(&dma->data.requests, i);