Staging: vc04_services: remove unused variables

the volatile fields of bcm2835_alsa_stream -
control and status are not used.

$ grep bcm2835_alsa_stream
>From the above command all instances we see that
all variables of 'bcm2835_alsa_stream' are declared as
'alsa_stream'

So search for 'control' wherever we have 'alsa_stream'

$ grep -l 'alsa_stream' | xargs grep "control"
The above command returns where we don't any usage of
'control' field. which means that there is no usage of
these fields.

similarly for 'status' we see no usages.

Signed-off-by: Keerthi Reddy <keerthigd4990@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
index 379604d3554e8a37e8fef3cafc388baf936281c6..f1e43e45fd67a21205f10bd5052d2a21f776a4d4 100644 (file)
--- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
+++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835.h
@@ -123,8 +123,6 @@ struct bcm2835_alsa_stream {
        struct snd_pcm_indirect pcm_indirect;
 
        spinlock_t lock;
-       volatile unsigned int control;
-       volatile unsigned int status;
 
        int open;
        int running;