[PATCH -next] ASoC: stm32: sai: remove set but not used variables 'mask, cr1'

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Fixes gcc '-Wunused-but-set-variable' warning:

sound/soc/stm/stm32_sai_sub.c: In function 'stm32_sai_configure_clock':
sound/soc/stm/stm32_sai_sub.c:902:11: warning:
 variable 'mask' set but not used [-Wunused-but-set-variable]
sound/soc/stm/stm32_sai_sub.c:902:6: warning:
 variable 'cr1' set but not used [-Wunused-but-set-variable]

It's not used any more after 8307b2afd386 ("ASoC: stm32: sai: set sai as
mclk clock provider")

Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
 sound/soc/stm/stm32_sai_sub.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index d4825700b63f..a00640f1df06 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -898,7 +898,7 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai,
 				     struct snd_pcm_hw_params *params)
 {
 	struct stm32_sai_sub_data *sai = snd_soc_dai_get_drvdata(cpu_dai);
-	int cr1, mask, div = 0;
+	int div = 0;
 	int sai_clk_rate, mclk_ratio, den;
 	unsigned int rate = params_rate(params);
 
@@ -944,8 +944,7 @@ static int stm32_sai_configure_clock(struct snd_soc_dai *cpu_dai,
 			if (sai->mclk_rate) {
 				mclk_ratio = sai->mclk_rate / rate;
 				if (mclk_ratio == 512) {
-					mask = SAI_XCR1_OSR;
-					cr1 = SAI_XCR1_OSR;
+					;
 				} else if (mclk_ratio != 256) {
 					dev_err(cpu_dai->dev,
 						"Wrong mclk ratio %d\n",






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