Re: [PATCH] PATCH: IPMI driver

[Jeff Garzik]

On Thu, Jan 09, 2003 at 08:17:57PM +0000, Alan Cox wrote:
> On Thu, 2003-01-09 at 19:20, Dave Jones wrote:
> > time_diff = ((jiffies_now - kcs_info->last_timeout_jiffies)
> 
> Thats valid for unsigned maths
> 	0x00000001 - 0xFFFFFFFF = 0x00000002

Just as a general note (not to Alan), this often appears in ethernet
drivers, in their RX and TX producer/consumer ring counters...  so don't
be surprised if you see this logic elsewhere in the kernel, too.

	Jeff