Public bug reported: When building an external kernel module against an Ubuntu kernel it would help to be able to include some special code for some specific Ubuntu kernel version.
I want to ship a kernel module in source code which the user should be able to compile against mainline kernels and various distribution kernels like the Ubuntu kernel, it would help if there is some way to identify the version of the Ubuntu kernel. To identify the kernel version it creates a file in include/generated/uapi/linux/version.h and then I can use something like: #if LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0) /* some code */ #else /* some code */ #endif The problem is that your kernel is not 100% API compatible with the mainline kernel and in some cases such a detection is also needed based on the Ubuntu kernel version used. RedHat extended this file with some version information about the RHEL kernel in use: #define LINUX_VERSION_CODE 132640 #define KERNEL_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c)) #define RHEL_MAJOR 6 #define RHEL_MINOR 5 #define RHEL_RELEASE_VERSION(a,b) (((a) << 8) + (b)) #define RHEL_RELEASE_CODE 1541 #define RHEL_RELEASE "430" I would like to see something like this also in the Ubuntu kernel (e.g. 3.13.0-27-generic) and in the long term kernel versions (e.g. 3.13.11.2) provided by Canonical. My current problem is that I do not know if the kernel I am compiling against has this backport in or not: http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-trusty.git;a=commitdiff;h=f4c342cdce8acfaef2d89a800bb6a10128d802c8 Adding some version to the kernel will help the backports project. https://backports.wiki.kernel.org/ This problem effects at least trusty, but probably all versions, having such a feature in Debian would also be nice, but I have not checked. SLES already has a similar feature. ** Affects: linux (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1327619 Title: kernel version detection in module build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1327619/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
