Messages in this thread | | | Date | Thu, 25 Aug 2011 12:03:30 -0700 | From | Greg KH <> | Subject | Re: [PATCH] tty/powerpc: fix build break with ehv_bytechan.c on allyesconfig |
| |
On Thu, Aug 25, 2011 at 01:51:20PM -0500, Timur Tabi wrote: > Greg KH wrote: > > But don't you really want this type of check at runtime? What happens > > if you load this driver on a machine that is not a guest? Will things > > break? Shouldn't you still refuse to load somehow? > > This is in the udbg code, which falls under the category of, "turn this on only > if you know what you're doing." > > The udbg code runs very early, before the device tree is available. There's no > way of knowing at this point whether or not we're running under a hypervisor. > If you turn on udbg support, then it means that you're trying to do some very > specific debugging on a specific platform. > > So I'm not removing this code just to fix the build break. It really should > never have been there in the first place.
Ok, thanks for the details, I'll queue up the patch in a bit.
greg k-h
| |