On Tue, 14 Sep 2010 14:25:34 -0500
Timur Tabi [off-list ref] wrote:

Alan Cox wrote:

quoted

Its a printk handler - better to lose the bytes than hang the box. I
think the current code is probably right.

What do you think about this change:

http://lists.ozlabs.org/pipermail/linuxppc-dev/2009-October/thread.html#76830

This is the original version of my patch.  In it, I simply allow drivers to
return 0 to indicate that they're too busy to accept data.  It works great
on the hvc driver that we have in-house today, but it might break other
drivers that return 0 to indicate error.

If you want to make that change then I guess you need to audit every
other hvc driver first.

But I never understood the point of the hvc layer anyway 8)