linux-kernel - [PATCH 1/9] ASoC: codecs: lpass-wsa-macro: remove unnecessary bounds check

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Message-ID: <20251117051523.16462-1-jonathan@marek.ca>
Date: Mon, 17 Nov 2025 00:15:13 -0500
From: Jonathan Marek <jonathan@...ek.ca>
To: linux-arm-msm@...r.kernel.org
Cc: Srinivas Kandagatla <srini@...nel.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	Mark Brown <broonie@...nel.org>,
	Jaroslav Kysela <perex@...ex.cz>,
	Takashi Iwai <tiwai@...e.com>,
	linux-sound@...r.kernel.org (open list:QCOM AUDIO (ASoC) DRIVERS),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH 1/9] ASoC: codecs: lpass-wsa-macro: remove unnecessary bounds check

WSA_MACRO_RX0 is 0 and WSA_MACRO_RX_MIX1 is (WSA_MACRO_RX_MAX-1), which
means it is not possible for the bounds check to fail.

Removing the WSA_MACRO_RX_MIX1 limit is needed to add support for other
ports (RX4, RX5, etc.), in which case the valid range depends on the HW
version: rely on the driver only setting valid ports in active_ch_mask
instead (already the case).

Signed-off-by: Jonathan Marek <jonathan@...ek.ca>
---
 sound/soc/codecs/lpass-wsa-macro.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/sound/soc/codecs/lpass-wsa-macro.c b/sound/soc/codecs/lpass-wsa-macro.c
index 38faa9074ca3e..6e54c1beac8f9 100644
--- a/sound/soc/codecs/lpass-wsa-macro.c
+++ b/sound/soc/codecs/lpass-wsa-macro.c
@@ -1168,12 +1168,6 @@ static int wsa_macro_set_prim_interpolator_rate(struct snd_soc_dai *dai,
 
 	for_each_set_bit(port, &wsa->active_ch_mask[dai->id], WSA_MACRO_RX_MAX) {
 		int_1_mix1_inp = port;
-		if ((int_1_mix1_inp < WSA_MACRO_RX0) || (int_1_mix1_inp > WSA_MACRO_RX_MIX1)) {
-			dev_err(component->dev,	"%s: Invalid RX port, Dai ID is %d\n",
-				__func__, dai->id);
-			return -EINVAL;
-		}
-
 		int_mux_cfg0 = CDC_WSA_RX_INP_MUX_RX_INT0_CFG0;
 
 		/*
@@ -1220,11 +1214,6 @@ static int wsa_macro_set_mix_interpolator_rate(struct snd_soc_dai *dai,
 
 	for_each_set_bit(port, &wsa->active_ch_mask[dai->id], WSA_MACRO_RX_MAX) {
 		int_2_inp = port;
-		if ((int_2_inp < WSA_MACRO_RX0) || (int_2_inp > WSA_MACRO_RX_MIX1)) {
-			dev_err(component->dev,	"%s: Invalid RX port, Dai ID is %d\n",
-				__func__, dai->id);
-			return -EINVAL;
-		}
 
 		int_mux_cfg1 = CDC_WSA_RX_INP_MUX_RX_INT0_CFG1;
 		for (j = 0; j < NUM_INTERPOLATORS; j++) {
-- 
2.51.0