All drivers: Drop unneeded comments.

device.c

@@ -268,7 +268,6 @@ SR_PRIV struct sr_usb_dev_inst *sr_usb_dev_inst_new(uint8_t bus,
 /** @private */
 SR_PRIV void sr_usb_dev_inst_free(struct sr_usb_dev_inst *usb)
 {
-	/* Avoid compiler warnings. */
 	(void)usb;
 
 	/* Nothing to do for this device instance type. */

hardware/alsa/alsa.c

@@ -71,7 +71,6 @@ static int hw_init(const char *devinfo)
 	struct sr_dev_inst *sdi;
 	struct context *ctx;
 
-	/* Avoid compiler warnings. */
 	(void)devinfo;
 
 	if (!(ctx = g_try_malloc0(sizeof(struct context)))) {
@@ -389,7 +388,6 @@ static int hw_dev_acquisition_start(int dev_index, void *cb_data)
 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
 static int hw_dev_acquisition_stop(int dev_index, void *cb_data)
 {
-	/* Avoid compiler warnings. */
 	(void)dev_index;
 	(void)cb_data;
 

hardware/asix-sigma/asix-sigma.c

@@ -458,6 +458,7 @@ static GSList *hw_scan(GSList *options)
 	int ret, i;
 
 	(void)options;
+
 	drvc = adi->priv;
 	devices = NULL;
 	clear_instances();
@@ -1419,7 +1420,6 @@ static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 	struct dev_context *devc;
 	uint8_t modestatus;
 
-	/* Avoid compiler warnings. */
 	(void)cb_data;
 
 	sr_source_remove(0);

hardware/demo/demo.c

@@ -170,6 +170,7 @@ static GSList *hw_scan(GSList *options)
 	int i;
 
 	(void)options;
+
 	drvc = ddi->priv;
 	devices = NULL;
 
@@ -204,7 +205,6 @@ static GSList *hw_dev_list(void)
 
 static int hw_dev_open(struct sr_dev_inst *sdi)
 {
-	/* Avoid compiler warnings. */
 	(void)sdi;
 
 	/* Nothing needed so far. */
@@ -214,7 +214,6 @@ static int hw_dev_open(struct sr_dev_inst *sdi)
 
 static int hw_dev_close(struct sr_dev_inst *sdi)
 {
-	/* Avoid compiler warnings. */
 	(void)sdi;
 
 	/* Nothing needed so far. */
@@ -231,7 +230,6 @@ static int hw_cleanup(void)
 static int hw_info_get(int info_id, const void **data,
        const struct sr_dev_inst *sdi)
 {
-
 	(void)sdi;
 
 	switch (info_id) {
@@ -404,7 +402,6 @@ static int receive_data(int fd, int revents, void *cb_data)
 	unsigned char c[BUFSIZE];
 	gsize z;
 
-	/* Avoid compiler warnings. */
 	(void)fd;
 	(void)revents;
 
@@ -522,7 +519,6 @@ static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
 	struct dev_context *devc;
 
-	/* Avoid compiler warnings. */
 	(void)cb_data;
 
 	devc = sdi->priv;

hardware/fluke-dmm/fluke.c

@@ -36,6 +36,7 @@ static struct sr_datafeed_analog *handle_qm_v1(const struct sr_dev_inst *sdi,
 	gboolean is_oor;
 
 	(void)sdi;
+
 	if (strcmp(tokens[0], "QM"))
 		return NULL;
 
@@ -158,6 +159,7 @@ static struct sr_datafeed_analog *handle_qm_v2(const struct sr_dev_inst *sdi,
 	char *eptr;
 
 	(void)sdi;
+
 	fvalue = strtof(tokens[0], &eptr);
 	if (fvalue == 0.0 && eptr == tokens[0]) {
 		sr_err("Invalid float.");

hardware/fx2lafw/command.c

@@ -18,7 +18,6 @@
  */
 
 #include <libusb.h>
-
 #include "fx2lafw.h"
 #include "command.h"
 #include "libsigrok.h"

hardware/fx2lafw/fx2lafw.c

@@ -431,8 +431,8 @@ static GSList *hw_scan(GSList *options)
 	libusb_device **devlist;
 	int devcnt, num_logic_probes, ret, i, j;
 
-	/* Avoid compiler warnings. */
 	(void)options;
+
 	drvc = fdi->priv;
 
 	/* This scan always invalidates any previous scans. */
@@ -686,7 +686,6 @@ static int receive_data(int fd, int revents, void *cb_data)
 {
 	struct timeval tv;
 
-	/* Avoid compiler warnings. */
 	(void)fd;
 	(void)revents;
 	(void)cb_data;
@@ -1028,8 +1027,6 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */
 static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
-
-	/* Avoid compiler warnings. */
 	(void)cb_data;
 
 	abort_acquisition(sdi->priv);

hardware/genericdmm/api.c

@@ -559,7 +559,6 @@ static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 {
 	struct sr_datafeed_packet packet;
 
-	/* Avoid compiler warnings. */
 	(void)sdi;
 
 	sr_dbg("Stopping acquisition.");

hardware/link-mso19/link-mso19.c

@@ -403,7 +403,6 @@ static int mso_parse_serial(const char *iSerial, const char *iProduct,
 
 static int hw_init(void)
 {
-
 	/* Nothing to do. */
 
 	return SR_OK;
@@ -694,7 +693,6 @@ static int receive_data(int fd, int revents, void *cb_data)
 	double analog_out[1024];
 	size_t i, s;
 
-	/* Avoid compiler warnings. */
 	(void)revents;
 
 	s = serial_read(fd, in, sizeof(in));
@@ -830,7 +828,6 @@ static int hw_dev_acquisition_stop(int dev_index, void *cb_data)
 {
 	struct sr_datafeed_packet packet;
 
-	/* Avoid compiler warnings. */
 	(void)dev_index;
 
 	packet.type = SR_DF_END;

hardware/zeroplus-logic-cube/zeroplus.c

@@ -334,6 +334,7 @@ static GSList *hw_scan(GSList *options)
 	int ret, devcnt, i, j;
 
 	(void)options;
+
 	drvc = zdi->priv;
 	devices = NULL;
 

input/binary.c

@@ -35,7 +35,6 @@ struct context {
 
 static int format_match(const char *filename)
 {
-	/* suppress compiler warning */
 	(void)filename;
 
 	/* this module will handle anything you throw at it */

output/analog.c

@@ -186,6 +186,7 @@ static GString *receive(struct sr_output *o, const struct sr_dev_inst *sdi,
 	int i, j;
 
 	(void)sdi;
+
 	if (!o || !o->sdi)
 		return NULL;
 	ctx = o->internal;

output/binary.c

@@ -29,7 +29,6 @@ static int data(struct sr_output *o, const uint8_t *data_in,
 {
 	uint8_t *outbuf;
 
-	/* Prevent compiler warnings. */
 	(void)o;
 
 	if (!data_in) {

session_driver.c

@@ -59,7 +59,6 @@ static int receive_data(int fd, int revents, void *cb_data)
 	void *buf;
 	int ret, got_data;
 
-	/* Avoid compiler warnings. */
 	(void)fd;
 	(void)revents;