bpf: Revert ("Fix dispatcher patchable function entry to 5 bytes nop")

Because __attribute__((patchable_function_entry)) is only available
since GCC-8 this solution fails to build on the minimum required GCC
version.

Undo these changes so we might try again -- without cluttering up the
patches with too many changes.

This is an almost complete revert of:

  dbe69b299884 ("bpf: Fix dispatcher patchable function entry to 5 bytes nop")
  ceea991a019c ("bpf: Move bpf_dispatcher function out of ftrace locations")

(notably the arch/x86/Kconfig hunk is kept).

Reported-by: David Laight <[email protected]>
Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Signed-off-by: Daniel Borkmann <[email protected]>
Tested-by: Björn Töpel <[email protected]>
Tested-by: Jiri Olsa <[email protected]>
Acked-by: Björn Töpel <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Link: https://lore.kernel.org/bpf/[email protected]

0 files changed, 0 insertions, 0 deletions