linux-kernel - [PATCH] usb: gadget: composite: mark expected switch fall-throughs

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Message-ID: <20171025172250.GA9361@embeddedor.com>
Date:   Wed, 25 Oct 2017 12:22:50 -0500
From:   "Gustavo A. R. Silva" <garsilva@...eddedor.com>
To:     Felipe Balbi <balbi@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <garsilva@...eddedor.com>
Subject: [PATCH] usb: gadget: composite: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <garsilva@...eddedor.com>
---
 drivers/usb/gadget/composite.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index 5d061b3..1f1ab6f 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -170,20 +170,20 @@ int config_ep_by_speed(struct usb_gadget *g,
 			want_comp_desc = 1;
 			break;
 		}
-		/* else: Fall trough */
+		/* fall through */
 	case USB_SPEED_SUPER:
 		if (gadget_is_superspeed(g)) {
 			speed_desc = f->ss_descriptors;
 			want_comp_desc = 1;
 			break;
 		}
-		/* else: Fall trough */
+		/* fall through */
 	case USB_SPEED_HIGH:
 		if (gadget_is_dualspeed(g)) {
 			speed_desc = f->hs_descriptors;
 			break;
 		}
-		/* else: fall through */
+		/* fall through */
 	default:
 		speed_desc = f->fs_descriptors;
 	}
@@ -224,6 +224,7 @@ int config_ep_by_speed(struct usb_gadget *g,
 		case USB_ENDPOINT_XFER_ISOC:
 			/* mult: bits 1:0 of bmAttributes */
 			_ep->mult = (comp_desc->bmAttributes & 0x3) + 1;
+			/* fall through */
 		case USB_ENDPOINT_XFER_BULK:
 		case USB_ENDPOINT_XFER_INT:
 			_ep->maxburst = comp_desc->bMaxBurst + 1;
-- 
2.7.4