Sparse reports the following warning:
sound/soc/amd/acp-pcm-dma.c:39:6: error: symbol 'bt_uart_enable' was not declared. Should it be static?
It's not very good practice to export such symbols that can easily conflict, add the acp_ prefix and add declaration in header file.
Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/amd/acp-da7219-max98357a.c | 6 +++--- sound/soc/amd/acp-pcm-dma.c | 6 +++--- sound/soc/amd/acp.h | 2 ++ 3 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/sound/soc/amd/acp-da7219-max98357a.c b/sound/soc/amd/acp-da7219-max98357a.c index b3df98a9f9f3..b2065f3fe42c 100644 --- a/sound/soc/amd/acp-da7219-max98357a.c +++ b/sound/soc/amd/acp-da7219-max98357a.c @@ -33,7 +33,7 @@ static struct clk *da7219_dai_wclk; static struct clk *da7219_dai_bclk; static struct clk *rt5682_dai_wclk; static struct clk *rt5682_dai_bclk; -extern bool bt_uart_enable; + void *acp_soc_is_rltk_max(struct device *dev);
static int cz_da7219_init(struct snd_soc_pcm_runtime *rtd) @@ -760,8 +760,8 @@ static int cz_probe(struct platform_device *pdev) "devm_snd_soc_register_card(%s) failed\n", card->name); } - bt_uart_enable = !device_property_read_bool(&pdev->dev, - "bt-pad-enable"); + acp_bt_uart_enable = !device_property_read_bool(&pdev->dev, + "bt-pad-enable"); return 0; }
diff --git a/sound/soc/amd/acp-pcm-dma.c b/sound/soc/amd/acp-pcm-dma.c index 11b3c4f39eba..1f322accd9ea 100644 --- a/sound/soc/amd/acp-pcm-dma.c +++ b/sound/soc/amd/acp-pcm-dma.c @@ -36,8 +36,8 @@ #define ST_MIN_BUFFER ST_MAX_BUFFER
#define DRV_NAME "acp_audio_dma" -bool bt_uart_enable = true; -EXPORT_SYMBOL(bt_uart_enable); +bool acp_bt_uart_enable = true; +EXPORT_SYMBOL(acp_bt_uart_enable);
static const struct snd_pcm_hardware acp_pcm_hardware_playback = { .info = SNDRV_PCM_INFO_INTERLEAVED | @@ -596,7 +596,7 @@ static int acp_init(void __iomem *acp_mmio, u32 asic_type) acp_reg_write(val, acp_mmio, mmACP_SOFT_RESET);
/* For BT instance change pins from UART to BT */ - if (!bt_uart_enable) { + if (!acp_bt_uart_enable) { val = acp_reg_read(acp_mmio, mmACP_BT_UART_PAD_SEL); val |= ACP_BT_UART_PAD_SELECT_MASK; acp_reg_write(val, acp_mmio, mmACP_BT_UART_PAD_SEL); diff --git a/sound/soc/amd/acp.h b/sound/soc/amd/acp.h index e5ab6c6040a6..85529ed7e5f5 100644 --- a/sound/soc/amd/acp.h +++ b/sound/soc/amd/acp.h @@ -204,4 +204,6 @@ typedef struct acp_dma_dscr_transfer { u32 reserved; } acp_dma_dscr_transfer_t;
+extern bool acp_bt_uart_enable; + #endif /*__ACP_HW_H */