On Mon, Feb 08, 2021 at 05:50:21PM +0200, Avi Kivity wrote: > On 05/02/2021 16.26, Greg Kroah-Hartman wrote: > > I'm announcing the release of the 4.9.256 kernel. > > > > This, and the 4.4.256 release are a little bit "different" than normal. > > > > This contains only 1 patch, just the version bump from .255 to .256 which ends > > up causing the userspace-visable LINUX_VERSION_CODE to behave a bit differently > > than normal due to the "overflow". > > > > With this release, KERNEL_VERSION(4, 9, 256) is the same as KERNEL_VERSION(4, 10, 0). > > > I think this is a bad idea. Many kernel features can only be discovered by > checking the kernel version. If a feature was introduced in 4.10, then an > application can be tricked into thinking a 4.9 kernel has it. > > > IMO, better to stop LINUX_VERSION_CODE at 255 and introduce a > LINUX_VERSION_CODE_IMPROVED that has more bits for patchlevel. We are going to stop LINUX_VERSION_CODE at 255 now, see the posted patches from Sasha, I think we are now ok. thanks, greg k-h
