Hendrik Brueckner c895f6f703 bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type ... Commit 0515e5999a ("bpf: introduce BPF_PROG_TYPE_PERF_EVENT program type") introduced the bpf_perf_event_data structure which exports the pt_regs structure. This is OK for multiple architectures but fail for s390 and arm64 which do not export pt_regs. Programs using them, for example, the bpf selftest fail to compile on these architectures. For s390, exporting the pt_regs is not an option because s390 wants to allow changes to it. For arm64, there is a user_pt_regs structure that covers parts of the pt_regs structure for use by user space. To solve the broken uapi for s390 and arm64, introduce an abstract type for pt_regs and add an asm/bpf_perf_event.h file that concretes the type. An asm-generic header file covers the architectures that export pt_regs today. The arch-specific enablement for s390 and arm64 follows in separate commits. Reported-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Fixes: 0515e5999a ("bpf: introduce BPF_PROG_TYPE_PERF_EVENT program type") Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Reviewed-and-tested-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2017-12-05 15:02:40 +01:00
..
asm-generic	bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type	2017-12-05 15:02:40 +01:00
drm	main drm pull request for v4.15	2017-11-15 20:42:10 -08:00
linux	bpf: correct broken uapi for BPF_PROG_TYPE_PERF_EVENT program type	2017-12-05 15:02:40 +01:00
misc	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
mtd	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
rdma	Updates for 4.15 kernel merge window	2017-11-15 14:54:53 -08:00
scsi	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
sound	tools/headers: Synchronize kernel ABI headers	2017-11-04 09:27:46 +01:00
video	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00
xen	License cleanup: add SPDX license identifier to uapi header files with a license	2017-11-02 11:20:11 +01:00