Commit ec1f9d9f01384 ("usb: dwc2: gadget: parity fix in isochronous mode") moved
these checks to dwc2_hsotg_change_ep_iso_parity() back in 2015. The assigned
value hasn't been read back since. Let's remove the unnecessary H/W read.
Fixes the following W=1 warning:
drivers/usb/dwc2/gadget.c: In function ‘dwc2_hsotg_epint’:
drivers/usb/dwc2/gadget.c:2981:6: warning: variable ‘ctrl’ set but not used
[-Wunused-but-set-variable]
2981 | u32 ctrl;
| ^~~~
Cc: Minas Harutyunyan <[email protected]>
Cc: Ben Dooks <[email protected]>
Signed-off-by: Lee Jones <[email protected]>
---
drivers/usb/dwc2/gadget.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 116e6175c7a48..fa07e3fcb8841 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -2975,10 +2975,8 @@ static void dwc2_hsotg_epint(struct dwc2_hsotg *hsotg,
unsigned int idx,
u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx);
u32 epsiz_reg = dir_in ? DIEPTSIZ(idx) : DOEPTSIZ(idx);
u32 ints;
- u32 ctrl;
ints = dwc2_gadget_read_ep_interrupts(hsotg, idx, dir_in);
- ctrl = dwc2_readl(hsotg, epctl_reg);
/* Clear endpoint interrupts */
dwc2_writel(hsotg, ints, epint_reg);
--
2.25.1
