[PATCH v2] usb: musb: remove unused variable 'devctl'
From: <hidden>
Date: 2020-11-24 06:36:27
Also in:
linux-mediatek, linux-usb, lkml
Subsystem:
musb multipoint high speed dual-role controller, the rest, usb subsystem · Maintainers:
Bin Liu, Linus Torvalds, Greg Kroah-Hartman
From: Min Guo <redacted>
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 <redacted>
---
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
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