ALSA: hda/realtek - Consolidate is_reachable_path()

alc_auto_is_dac_reachable() can be replaced fully with
is_reachable_path().  The only difference is the order of arguments.
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/pci/hda/patch_realtek.c

@@ -2902,15 +2902,6 @@ static bool alc_is_dac_already_used(struct hda_codec *codec, hda_nid_t nid)
 	return false;
 }
 
-/* check whether the DAC is reachable from the pin */
-static bool alc_auto_is_dac_reachable(struct hda_codec *codec,
-				      hda_nid_t pin, hda_nid_t dac)
-{
-	if (!pin || !dac)
-		return false;
-	return snd_hda_get_conn_index(codec, pin, dac, true) >= 0;
-}
-
 /* look for an empty DAC slot */
 static hda_nid_t alc_auto_look_for_dac(struct hda_codec *codec, hda_nid_t pin)
 {
@@ -2921,7 +2912,7 @@ static hda_nid_t alc_auto_look_for_dac(struct hda_codec *codec, hda_nid_t pin)
 		hda_nid_t nid = spec->all_dacs[i];
 		if (!nid || alc_is_dac_already_used(codec, nid))
 			continue;
-		if (alc_auto_is_dac_reachable(codec, pin, nid))
+		if (is_reachable_path(codec, nid, pin))
 			return nid;
 	}
 	return 0;
@@ -3013,7 +3004,7 @@ static hda_nid_t get_dac_if_single(struct hda_codec *codec, hda_nid_t pin)
 		hda_nid_t nid = spec->all_dacs[i];
 		if (!nid || alc_is_dac_already_used(codec, nid))
 			continue;
-		if (alc_auto_is_dac_reachable(codec, pin, nid)) {
+		if (is_reachable_path(codec, nid, pin)) {
 			if (nid_found)
 				return 0;
 			nid_found = nid;
@@ -3189,7 +3180,7 @@ static int alc_auto_fill_dacs(struct hda_codec *codec, int num_outs,
 			dacs[i] = alc_auto_look_for_dac(codec, pin);
 		if (!dacs[i] && !i) {
 			for (j = 1; j < num_outs; j++) {
-				if (alc_auto_is_dac_reachable(codec, pin, dacs[j])) {
+				if (is_reachable_path(codec, dacs[j], pin)) {
 					dacs[0] = dacs[j];
 					dacs[j] = 0;
 					break;
@@ -3198,11 +3189,10 @@ static int alc_auto_fill_dacs(struct hda_codec *codec, int num_outs,
 		}
 		dac = dacs[i];
 		if (!dac) {
-			if (alc_auto_is_dac_reachable(codec, pin, dacs[0]))
+			if (is_reachable_path(codec, dacs[0], pin))
 				dac = dacs[0];
 			else if (cfg->line_outs > i &&
-				 alc_auto_is_dac_reachable(codec, pin,
-					spec->private_dac_nids[i]))
+				 is_reachable_path(codec, spec->private_dac_nids[i], pin))
 				dac = spec->private_dac_nids[i];
 			if (dac) {
 				if (!i)
@@ -3211,8 +3201,7 @@ static int alc_auto_fill_dacs(struct hda_codec *codec, int num_outs,
 					badness += bad->shared_surr;
 				else
 					badness += bad->shared_clfe;
-			} else if (alc_auto_is_dac_reachable(codec, pin,
-					spec->private_dac_nids[0])) {
+			} else if (is_reachable_path(codec, spec->private_dac_nids[0], pin)) {
 				dac = spec->private_dac_nids[0];
 				badness += bad->shared_surr_main;
 			} else if (!i)
@@ -4141,7 +4130,7 @@ static int alc_auto_fill_multi_ios(struct hda_codec *codec,
 
 			if (offset && offset + spec->multi_ios < dacs) {
 				dac = spec->private_dac_nids[offset + spec->multi_ios];
-				if (!alc_auto_is_dac_reachable(codec, nid, dac))
+				if (!is_reachable_path(codec, dac, nid))
 					dac = 0;
 			}
 			if (hardwired)