void iowrite16_rep()

in kernel/io.c [397:420]

• 22 lines of code
• 5 McCabe index (conditional complexity)

void iowrite16_rep(void __iomem *port, const void *src, unsigned long count)
{
	if (unlikely((unsigned long)src & 0x3)) {
		if (!count)
			return;
		BUG_ON((unsigned long)src & 0x1);
		iowrite16(*(unsigned short *)src, port);
		src += 2;
		--count;
	}

	while (count >= 2) {
		unsigned int w;
		count -= 2;
		w = *(unsigned int *)src;
		src += 4;
		iowrite16(w >>  0, port);
		iowrite16(w >> 16, port);
	}

	if (count) {
		iowrite16(*(unsigned short *)src, port);
	}
}