ASoC: mediatek: Make some symbols static

Fix sparse warnings:

sound/soc/mediatek/common/mtk-btcvsd.c:410:5: warning: symbol 'mtk_btcvsd_write_to_bt' was not declared. Should it be static?
sound/soc/mediatek/common/mtk-btcvsd.c:698:9: warning: symbol 'mtk_btcvsd_snd_read' was not declared. Should it be static?
sound/soc/mediatek/common/mtk-btcvsd.c:779:9: warning: symbol 'mtk_btcvsd_snd_write' was not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/mediatek/common/mtk-btcvsd.c b/sound/soc/mediatek/common/mtk-btcvsd.c
index bd55c546e79020b9d661cea89cb9f434e3fbcba2..c7a81c4be0687a25970502c6be77ed05e660c0d4 100644 (file)
--- a/sound/soc/mediatek/common/mtk-btcvsd.c
+++ b/sound/soc/mediatek/common/mtk-btcvsd.c
@@ -407,11 +407,11 @@ static int mtk_btcvsd_read_from_bt(struct mtk_btcvsd_snd *bt,
        return 0;
 }
 
-int mtk_btcvsd_write_to_bt(struct mtk_btcvsd_snd *bt,
-                          enum bt_sco_packet_len packet_type,
-                          unsigned int packet_length,
-                          unsigned int packet_num,
-                          unsigned int blk_size)
+static int mtk_btcvsd_write_to_bt(struct mtk_btcvsd_snd *bt,
+                                 enum bt_sco_packet_len packet_type,
+                                 unsigned int packet_length,
+                                 unsigned int packet_num,
+                                 unsigned int blk_size)
 {
        unsigned int i;
        unsigned long flags;
@@ -695,9 +695,9 @@ static int wait_for_bt_irq(struct mtk_btcvsd_snd *bt,
        return 0;
 }
 
-ssize_t mtk_btcvsd_snd_read(struct mtk_btcvsd_snd *bt,
-                           char __user *buf,
-                           size_t count)
+static ssize_t mtk_btcvsd_snd_read(struct mtk_btcvsd_snd *bt,
+                                  char __user *buf,
+                                  size_t count)
 {
        ssize_t read_size = 0, read_count = 0, cur_read_idx, cont;
        unsigned int cur_buf_ofs = 0;
@@ -776,9 +776,9 @@ ssize_t mtk_btcvsd_snd_read(struct mtk_btcvsd_snd *bt,
        return read_count;
 }
 
-ssize_t mtk_btcvsd_snd_write(struct mtk_btcvsd_snd *bt,
-                            char __user *buf,
-                            size_t count)
+static ssize_t mtk_btcvsd_snd_write(struct mtk_btcvsd_snd *bt,
+                                   char __user *buf,
+                                   size_t count)
 {
        int written_size = count, avail = 0, cur_write_idx, write_size, cont;
        unsigned int cur_buf_ofs = 0;