fallthrough question

[Randy Dunlap <rdunlap@infradead.org>]

Hi,

I expected this to produce a fallthrough warning, but it doesn't
(with gcc 11.1.0):

from sound/oss/dmasound/dmasound_core.c:#1481, when falling from case 1
into case 0: (in arch/m68k/ selected builds only)

	case 1:
		if ((size = ints[2]) < 256) /* check for small buffer specs */
			size <<= 10 ;
                if (size < MIN_BUFSIZE || size > MAX_BUFSIZE)
                        printk("dmasound_setup: invalid write buffer size, using default = %d\n", writeBufSize);
                else
                        writeBufSize = size;
	case 0:
		break;
	default:

Can you tell me what is going on here?

thanks.
-- 
~Randy