kernel-package is maintained by Manoj Srivastava (cc'd), not the kernel team. Ben. On Sat, 2017-01-14 at 22:28 +0100, Linus Lüssing wrote: > Hi Ben and others, > > Recently we stumbled upon some compile errors when trying to build > a backport version of the batman-adv kernel module for a 4.5 kernel > [0]: > > "implicit declaration of function ‘G_TC_AT’" > > It seems VirtualBox has stumbled over this issue, too [1]. > > When trying to find the cause of these errors we noticed that the > headers directory created via "$ make-kpkg kernel_headers" for 4.5 > kernel resulted in two differing header files with the same guard, > namely __LINUX_PKT_CLS_H: > > https://metameute.de/~tux/batman-adv/net-sched-issues/linux-headers-4 > .5.0%2b/include/uapi/linux/pkt_cls.h > https://metameute.de/~tux/batman-adv/net-sched-issues/linux-headers-4 > .5.0%2b/include/linux/pkt_cls.h > > The latter, the non-uapi version, has the "#ifdef __KERNEL__" > section stripped, causing the compile issue if it is included > before the uapi variant. > > Removing this non-uapi version from the unpacked > linux-headers .deb package manually afterwards lets > a batman-adv compilation succeed again. > > Daniel (CC) has helped a lot with debugging so far and he > expressed the suspicion that maybe make-kpkg might install > "$ make headers_install" into the wrong directory? > > Regards, Linus > > [0]: https://www.open-mesh.org/issues/322 > [1]: https://www.virtualbox.org/ticket/15327 > > PS: make-kpkg was invoked on a Debian Jessie (kernel-package > 13.014+nmu1). -- Ben Hutchings Hoare's Law of Large Problems: Inside every large problem is a small problem struggling to get out.
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