From: Jonathan Dieter <jdieter@xxxxxxxxx> This patch has been added to the 4.1 stable tree. If you have any objections, please let us know. =============== [ Upstream commit cfd6ed4537a9e938fa76facecd4b9cd65b6d1563 ] GCC 7 now warns when switch statements fall through implicitly, and with -Werror enabled in configure.ac, that makes these tools unbuildable. We fix this by notifying the compiler that this particular case statement is meant to fall through. Reviewed-by: Peter Senna Tschudin <peter.senna@xxxxxxxxx> Signed-off-by: Jonathan Dieter <jdieter@xxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> --- tools/usb/usbip/src/usbip.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/tools/usb/usbip/src/usbip.c b/tools/usb/usbip/src/usbip.c index d7599d943529..73d8eee8130b 100644 --- a/tools/usb/usbip/src/usbip.c +++ b/tools/usb/usbip/src/usbip.c @@ -176,6 +176,8 @@ int main(int argc, char *argv[]) break; case '?': printf("usbip: invalid option\n"); + /* Terminate after printing error */ + /* FALLTHRU */ default: usbip_usage(); goto out; -- 2.14.1