This issue is reproduced when W=1 build in compiler gcc-12. The following are sparse warnings:
sound/soc/codecs/nau8810.c:183:25: sparse: warning: incorrect type in assignment sound/soc/codecs/nau8810.c:183:25: sparse: expected int sound/soc/codecs/nau8810.c:183:25: sparse: got restricted __be16 sound/soc/codecs/nau8810.c:219:25: sparse: warning: cast to restricted __be16 sound/soc/codecs/nau8810.c:219:25: sparse: warning: cast to restricted __be16 sound/soc/codecs/nau8810.c:219:25: sparse: warning: cast to restricted __be16 sound/soc/codecs/nau8810.c:219:25: sparse: warning: cast to restricted __be16
This issue is not still actively checked by kernel test robot. Actually, it is same with nau8822's sparse warnings issue.
Signed-off-by: David Lin CTLIN0@nuvoton.com --- sound/soc/codecs/nau8810.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/sound/soc/codecs/nau8810.c b/sound/soc/codecs/nau8810.c index 47f000cd4d99..97a54059474c 100644 --- a/sound/soc/codecs/nau8810.c +++ b/sound/soc/codecs/nau8810.c @@ -169,6 +169,7 @@ static int nau8810_eq_get(struct snd_kcontrol *kcontrol, struct soc_bytes_ext *params = (void *)kcontrol->private_value; int i, reg, reg_val; u16 *val; + __be16 tmp;
val = (u16 *)ucontrol->value.bytes.data; reg = NAU8810_REG_EQ1; @@ -177,8 +178,8 @@ static int nau8810_eq_get(struct snd_kcontrol *kcontrol, /* conversion of 16-bit integers between native CPU format * and big endian format */ - reg_val = cpu_to_be16(reg_val); - memcpy(val + i, ®_val, sizeof(reg_val)); + tmp = cpu_to_be16(reg_val); + memcpy(val + i, &tmp, sizeof(tmp)); }
return 0; @@ -201,6 +202,7 @@ static int nau8810_eq_put(struct snd_kcontrol *kcontrol, void *data; u16 *val, value; int i, reg, ret; + __be16 *tmp;
data = kmemdup(ucontrol->value.bytes.data, params->max, GFP_KERNEL | GFP_DMA); @@ -213,7 +215,8 @@ static int nau8810_eq_put(struct snd_kcontrol *kcontrol, /* conversion of 16-bit integers between native CPU format * and big endian format */ - value = be16_to_cpu(*(val + i)); + tmp = (__be16 *)(val + i); + value = be16_to_cpup(tmp); ret = regmap_write(nau8810->regmap, reg + i, value); if (ret) { dev_err(component->dev, "EQ configuration fail, register: %x ret: %d\n",