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Subject[PATCH 1/2] ASoC: mediatek: Fix UBSAN warning.
Date
In sound/soc/mediatek/common/mtk-afe-fe-dai.c, when xxx_reg is -1, it's
a no-op to call mtk_regmap_update_bits, but since both xxx_reg and
xxx_shift are set to -1, the (1 << xxx_shift) in the argument would
trigger a UBSAN warning.

Fix the warning by setting those xxx_shift to 0 instead.

Note that since the code explicitly checks .mono_shift >= 0 and
.fs_shift >= 0 before using them in '<<' operator, those two members are
not set to 0.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
---
sound/soc/mediatek/common/mtk-afe-fe-dai.c | 9 ++++-----
sound/soc/mediatek/mt2701/mt2701-afe-pcm.c | 13 -------------
sound/soc/mediatek/mt6797/mt6797-afe-pcm.c | 16 ----------------
sound/soc/mediatek/mt8173/mt8173-afe-pcm.c | 16 ----------------
sound/soc/mediatek/mt8183/mt8183-afe-pcm.c | 20 --------------------
5 files changed, 4 insertions(+), 70 deletions(-)

diff --git a/sound/soc/mediatek/common/mtk-afe-fe-dai.c b/sound/soc/mediatek/common/mtk-afe-fe-dai.c
index cf4978be062f..3830e582e188 100644
--- a/sound/soc/mediatek/common/mtk-afe-fe-dai.c
+++ b/sound/soc/mediatek/common/mtk-afe-fe-dai.c
@@ -197,11 +197,10 @@ int mtk_afe_fe_trigger(struct snd_pcm_substream *substream, int cmd,
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
case SNDRV_PCM_TRIGGER_RESUME:
- if (memif->data->enable_shift >= 0)
- mtk_regmap_update_bits(afe->regmap,
- memif->data->enable_reg,
- 1 << memif->data->enable_shift,
- 1 << memif->data->enable_shift);
+ mtk_regmap_update_bits(afe->regmap,
+ memif->data->enable_reg,
+ 1 << memif->data->enable_shift,
+ 1 << memif->data->enable_shift);

/* set irq counter */
mtk_regmap_update_bits(afe->regmap, irq_data->irq_cnt_reg,
diff --git a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
index 968fba4d7533..7064a9fd6f74 100644
--- a/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
+++ b/sound/soc/mediatek/mt2701/mt2701-afe-pcm.c
@@ -994,7 +994,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 6,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DL2",
@@ -1013,7 +1012,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 7,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DL3",
@@ -1032,7 +1030,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 8,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DL4",
@@ -1051,7 +1048,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 9,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DL5",
@@ -1070,7 +1066,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 10,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DLM",
@@ -1089,7 +1084,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 12,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "UL1",
@@ -1108,7 +1102,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 0,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "UL2",
@@ -1127,7 +1120,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 1,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "UL3",
@@ -1146,7 +1138,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 2,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "UL4",
@@ -1165,7 +1156,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 3,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "UL5",
@@ -1184,7 +1174,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 4,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "DLBT",
@@ -1203,7 +1192,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 13,
.msb_reg = -1,
- .msb_shift = -1,
},
{
.name = "ULBT",
@@ -1222,7 +1210,6 @@ static const struct mtk_base_memif_data memif_data[MT2701_MEMIF_NUM] = {
.agent_disable_reg = AUDIO_TOP_CON5,
.agent_disable_shift = 16,
.msb_reg = -1,
- .msb_shift = -1,
},
};

diff --git a/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c b/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
index bff7d71d0742..08a6532da322 100644
--- a/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
+++ b/sound/soc/mediatek/mt6797/mt6797-afe-pcm.c
@@ -401,9 +401,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL1_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_DL2] = {
.name = "DL2",
@@ -420,9 +418,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL2_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_DL3] = {
.name = "DL3",
@@ -439,9 +435,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL3_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_VUL] = {
.name = "VUL",
@@ -458,9 +452,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_AWB] = {
.name = "AWB",
@@ -477,9 +469,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = AWB_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_VUL12] = {
.name = "VUL12",
@@ -496,9 +486,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL_DATA2_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_DAI] = {
.name = "DAI",
@@ -515,9 +503,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DAI_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT6797_MEMIF_MOD_DAI] = {
.name = "MOD_DAI",
@@ -534,9 +520,7 @@ static const struct mtk_base_memif_data memif_data[MT6797_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = MOD_DAI_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
};

diff --git a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c
index 166aed28330d..0382896c162e 100644
--- a/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c
+++ b/sound/soc/mediatek/mt8173/mt8173-afe-pcm.c
@@ -714,13 +714,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = AFE_DAC_CON1,
.mono_shift = 21,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 1,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 0,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "DL2",
.id = MT8173_AFE_MEMIF_DL2,
@@ -732,13 +730,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = AFE_DAC_CON1,
.mono_shift = 22,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 2,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 1,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "VUL",
.id = MT8173_AFE_MEMIF_VUL,
@@ -750,13 +746,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = AFE_DAC_CON1,
.mono_shift = 27,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 3,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 6,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "DAI",
.id = MT8173_AFE_MEMIF_DAI,
@@ -768,13 +762,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = -1,
.mono_shift = -1,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 4,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 5,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "AWB",
.id = MT8173_AFE_MEMIF_AWB,
@@ -786,13 +778,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = AFE_DAC_CON1,
.mono_shift = 24,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 6,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 3,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "MOD_DAI",
.id = MT8173_AFE_MEMIF_MOD_DAI,
@@ -804,13 +794,11 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = AFE_DAC_CON1,
.mono_shift = 30,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = AFE_DAC_CON0,
.enable_shift = 7,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 4,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
}, {
.name = "HDMI",
.id = MT8173_AFE_MEMIF_HDMI,
@@ -822,13 +810,10 @@ static const struct mtk_base_memif_data memif_data[MT8173_AFE_MEMIF_NUM] = {
.mono_reg = -1,
.mono_shift = -1,
.hd_reg = -1,
- .hd_shift = -1,
.enable_reg = -1,
- .enable_shift = -1,
.msb_reg = AFE_MEMIF_MSB,
.msb_shift = 8,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
},
};

@@ -914,7 +899,6 @@ static const struct mtk_base_irq_data irq_data[MT8173_AFE_IRQ_NUM] = {
.irq_en_reg = AFE_IRQ_MCU_CON,
.irq_en_shift = 12,
.irq_fs_reg = -1,
- .irq_fs_shift = -1,
.irq_fs_maskbit = -1,
.irq_clr_reg = AFE_IRQ_CLR,
.irq_clr_shift = 4,
diff --git a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c
index 4e045dd305a7..43be51bf0329 100644
--- a/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c
+++ b/sound/soc/mediatek/mt8183/mt8183-afe-pcm.c
@@ -421,9 +421,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL1_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_DL2] = {
.name = "DL2",
@@ -440,9 +438,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL2_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_DL3] = {
.name = "DL3",
@@ -459,9 +455,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = DL3_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_VUL2] = {
.name = "VUL2",
@@ -478,9 +472,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL2_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_AWB] = {
.name = "AWB",
@@ -497,9 +489,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = AWB_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_AWB2] = {
.name = "AWB2",
@@ -516,9 +506,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = AWB2_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_VUL12] = {
.name = "VUL12",
@@ -535,9 +523,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = VUL12_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_MOD_DAI] = {
.name = "MOD_DAI",
@@ -554,9 +540,7 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = MOD_DAI_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
[MT8183_MEMIF_HDMI] = {
.name = "HDMI",
@@ -569,13 +553,10 @@ static const struct mtk_base_memif_data memif_data[MT8183_MEMIF_NUM] = {
.mono_reg = -1,
.mono_shift = -1,
.enable_reg = -1, /* control in tdm for sync start */
- .enable_shift = -1,
.hd_reg = AFE_MEMIF_HD_MODE,
.hd_shift = HDMI_HD_SFT,
.agent_disable_reg = -1,
- .agent_disable_shift = -1,
.msb_reg = -1,
- .msb_shift = -1,
},
};

@@ -690,7 +671,6 @@ static const struct mtk_base_irq_data irq_data[MT8183_IRQ_NUM] = {
.irq_cnt_shift = 0,
.irq_cnt_maskbit = 0x3ffff,
.irq_fs_reg = -1,
- .irq_fs_shift = -1,
.irq_fs_maskbit = -1,
.irq_en_reg = AFE_IRQ_MCU_CON0,
.irq_en_shift = IRQ8_MCU_ON_SFT,
--
2.21.0.352.gf09ad66450-goog
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