static void bcma_host_soc_block_read()

in host_soc.c [50:91]

• 38 lines of code
• 7 McCabe index (conditional complexity)

static void bcma_host_soc_block_read(struct bcma_device *core, void *buffer,
				     size_t count, u16 offset, u8 reg_width)
{
	void __iomem *addr = core->io_addr + offset;

	switch (reg_width) {
	case sizeof(u8): {
		u8 *buf = buffer;

		while (count) {
			*buf = __raw_readb(addr);
			buf++;
			count--;
		}
		break;
	}
	case sizeof(u16): {
		__le16 *buf = buffer;

		WARN_ON(count & 1);
		while (count) {
			*buf = (__force __le16)__raw_readw(addr);
			buf++;
			count -= 2;
		}
		break;
	}
	case sizeof(u32): {
		__le32 *buf = buffer;

		WARN_ON(count & 3);
		while (count) {
			*buf = (__force __le32)__raw_readl(addr);
			buf++;
			count -= 4;
		}
		break;
	}
	default:
		WARN_ON(1);
	}
}