ath9k: clean up debugfs print of reset causes

Reduce code duplication
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/debug.c

@@ -852,36 +852,30 @@ static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 			       size_t count, loff_t *ppos)
 {
 	struct ath_softc *sc = file->private_data;
+	static const char * const reset_cause[__RESET_TYPE_MAX] = {
+		[RESET_TYPE_BB_HANG] = "Baseband Hang",
+		[RESET_TYPE_BB_WATCHDOG] = "Baseband Watchdog",
+		[RESET_TYPE_FATAL_INT] = "Fatal HW Error",
+		[RESET_TYPE_TX_ERROR] = "TX HW error",
+		[RESET_TYPE_TX_GTT] = "Transmit timeout",
+		[RESET_TYPE_TX_HANG] = "TX Path Hang",
+		[RESET_TYPE_PLL_HANG] = "PLL RX Hang",
+		[RESET_TYPE_MAC_HANG] = "MAC Hang",
+		[RESET_TYPE_BEACON_STUCK] = "Stuck Beacon",
+		[RESET_TYPE_MCI] = "MCI Reset",
+	};
 	char buf[512];
 	unsigned int len = 0;
+	int i;
 
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "Baseband Hang",
-			 sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "Baseband Watchdog",
-			 sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "Fatal HW Error",
-			 sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "TX HW error",
-			 sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "TX Path Hang",
-			 sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "PLL RX Hang",
-			 sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "MAC Hang",
-			 sc->debug.stats.reset[RESET_TYPE_MAC_HANG]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "Stuck Beacon",
-			 sc->debug.stats.reset[RESET_TYPE_BEACON_STUCK]);
-	len += scnprintf(buf + len, sizeof(buf) - len,
-			 "%17s: %2d\n", "MCI Reset",
-			 sc->debug.stats.reset[RESET_TYPE_MCI]);
+	for (i = 0; i < ARRAY_SIZE(reset_cause); i++) {
+		if (!reset_cause[i])
+		    continue;
+
+		len += scnprintf(buf + len, sizeof(buf) - len,
+				 "%17s: %2d\n", reset_cause[i],
+				 sc->debug.stats.reset[i]);
+	}
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);