From: Min Guo <min.guo@xxxxxxxxxxxx>
Remove unused 'devctl' variable to fix compile warnings:
drivers/usb/musb/musbhsdma.c: In function 'dma_controller_irq':
drivers/usb/musb/musbhsdma.c:324:8: warning: variable 'devctl' set
but not used [-Wunused-but-set-variable]
Signed-off-by: Min Guo <min.guo@xxxxxxxxxxxx>
---
changes in v2
suggested by Alan Stern:
Add void before musb_read to indicate that the register MUSB_DEVCTL
was intended to be read and discarded.
---
drivers/usb/musb/musbhsdma.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/usb/musb/musbhsdma.c b/drivers/usb/musb/musbhsdma.c
index 0aacfc8be5a1..f59a009c533e 100644
--- a/drivers/usb/musb/musbhsdma.c
+++ b/drivers/usb/musb/musbhsdma.c
@@ -321,8 +321,6 @@ irqreturn_t dma_controller_irq(int irq, void *private_data)
musb_channel->channel.status =
MUSB_DMA_STATUS_BUS_ABORT;
} else {
- u8 devctl;
-
addr = musb_read_hsdma_addr(mbase,
bchannel);
channel->actual_len = addr
@@ -336,7 +334,7 @@ irqreturn_t dma_controller_irq(int irq, void *private_data)
< musb_channel->len) ?
"=> reconfig 0" : "=> complete");
- devctl = musb_readb(mbase, MUSB_DEVCTL);
+ (void)musb_readb(mbase, MUSB_DEVCTL);
channel->status = MUSB_DMA_STATUS_FREE;
--
2.18.0
