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bpf: split HAVE_BPF_JIT into cBPF and eBPF variant

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Split the HAVE_BPF_JIT into two for distinguishing cBPF and eBPF JITs.

Current cBPF ones:

  # git grep -n HAVE_CBPF_JIT arch/
  arch/arm/Kconfig:44:    select HAVE_CBPF_JIT
  arch/mips/Kconfig:18:   select HAVE_CBPF_JIT if !CPU_MICROMIPS
  arch/powerpc/Kconfig:129:       select HAVE_CBPF_JIT
  arch/sparc/Kconfig:35:  select HAVE_CBPF_JIT

Current eBPF ones:

  # git grep -n HAVE_EBPF_JIT arch/
  arch/arm64/Kconfig:61:  select HAVE_EBPF_JIT
  arch/s390/Kconfig:126:  select HAVE_EBPF_JIT if PACK_STACK && HAVE_MARCH_Z196_FEATURES
  arch/x86/Kconfig:94:    select HAVE_EBPF_JIT                    if X86_64

Later code also needs this facility to check for eBPF JITs.

Signed-off-by: Daniel Borkmann <[email protected]>
Acked-by: Alexei Starovoitov <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Daniel Borkmann 2016-05-13 19:08:28 +02:00 • committed by David S. Miller
commit 6077776b59
8 changed files with 18 additions and 10 deletions
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14
net/Kconfig
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@ -289,7 +289,7 @@ config BQL
config BPF_JIT
bool "enable BPF Just In Time compiler"
depends on HAVE_BPF_JIT
depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT
depends on MODULES
---help---
Berkeley Packet Filter filtering capabilities are normally handled
@ -419,6 +419,14 @@ config MAY_USE_DEVLINK
endif # if NET
# Used by archs to tell that they support BPF_JIT
config HAVE_BPF_JIT
# Used by archs to tell that they support BPF JIT compiler plus which flavour.
# Only one of the two can be selected for a specific arch since eBPF JIT supersedes
# the cBPF JIT.
# Classic BPF JIT (cBPF)
config HAVE_CBPF_JIT
bool
# Extended BPF JIT (eBPF)
config HAVE_EBPF_JIT
bool