usb: musb: gadget: Use fallthrough pseudo-keyword

PATCH New Gustavo A. R. Silva 1 participant 1 message Oct 8, 2020

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USB MUSB multipoint high speed dual-role controller

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Gustavo A. R. Silva

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2020-10-08 22:23 UTC #0 lore raw

PATCH 1/1 usb: musb: gadget: Use fallthrough pseudo-keyword

In order to enable -Wimplicit-fallthrough for Clang[1], replace the existing /* FALLTHROUGH */ comment with the new pseudo-keyword macro fallthrough[2].

[1] https://git.kernel.org/linus/e2079e93f562c7f7a030eb7642017ee5eabaaa10
[2] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through

Signed-off-by Gustavo A. R. Silva <[email protected]>

---
 drivers/usb/musb/musb_gadget_ep0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

drivers/usb/musb/musb_gadget_ep0.c +1 -1

index 44d3cb02fa76..6d7336727388 100644
@@ -1024,7 +1024,7 @@ static int musb_g_ep0_halt(struct usb_ep *e, int value)
 	case MUSB_EP0_STAGE_ACKWAIT:	/* STALL for zero-length data */
 	case MUSB_EP0_STAGE_RX:		/* control-OUT data */
 		csr = musb_readw(regs, MUSB_CSR0);
-		/* FALLTHROUGH */
+		fallthrough;
 
 	/* It's also OK to issue stalls during callbacks when a non-empty
 	 * DATA stage buffer has been read (or even written).

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