comedi: remove unused helper function dma_chain_flag_bits

The helper function dma_chain_flag_bits is not being called from
anywhere, it is redundant and can be removed.

Cleans up clang scan build warning:
drivers/comedi/drivers/cb_pcidas64.c:377:28: warning: unused
function 'dma_chain_flag_bits' [-Wunused-function]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Link: https://lore.kernel.org/r/20240308131848.2057693-1-colin.i.king@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/comedi/drivers/cb_pcidas64.c b/drivers/comedi/drivers/cb_pcidas64.c
index ff19fc3859e47bef47658e01401b71c06947ecd8..d398c6df948229bd6a0a8bb99ca0e2e0855b8343 100644 (file)
--- a/drivers/comedi/drivers/cb_pcidas64.c
+++ b/drivers/comedi/drivers/cb_pcidas64.c
@@ -374,11 +374,6 @@ static inline u16 pipe_full_bits(u16 hw_status_bits)
        return (hw_status_bits >> 10) & 0x3;
 };
 
-static inline unsigned int dma_chain_flag_bits(u16 prepost_bits)
-{
-       return (prepost_bits >> 6) & 0x3;
-}
-
 static inline unsigned int adc_upper_read_ptr_code(u16 prepost_bits)
 {
        return (prepost_bits >> 12) & 0x3;