Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1428954

[PATCHv2 1/7] ppc bpf/jit: Disable classic BPF JIT on ppc64le

From "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Newsgroups linux.kernel
Subject [PATCHv2 1/7] ppc bpf/jit: Disable classic BPF JIT on ppc64le
Date 2016-06-22 18:30 +0200
Message-ID <rMTcl-5Ma-1@gated-at.bofh.it> (permalink)
References <rMTcl-5Ma-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw


Classic BPF JIT was never ported completely to work on little endian
powerpc. However, it can be enabled and will crash the system when used.
As such, disable use of BPF JIT on ppc64le.

Cc: stable@vger.kernel.org
Cc: Matt Evans <matt@ozlabs.org>
Cc: Denis Kirjanov <kda@linux-powerpc.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Alexei Starovoitov <ast@fb.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Cc: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Reported-by: Thadeu Lima de Souza Cascardo <cascardo@redhat.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 01f7464..0a9d439 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -128,7 +128,7 @@ config PPC
 	select IRQ_FORCED_THREADING
 	select HAVE_RCU_TABLE_FREE if SMP
 	select HAVE_SYSCALL_TRACEPOINTS
-	select HAVE_CBPF_JIT
+	select HAVE_CBPF_JIT if CPU_BIG_ENDIAN
 	select HAVE_ARCH_JUMP_LABEL
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_HAS_GCOV_PROFILE_ALL
-- 
2.8.2

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread


Thread

[PATCHv2 1/7] ppc bpf/jit: Disable classic BPF JIT on ppc64le "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com> - 2016-06-22 18:30 +0200
  Re: [PATCHv2 1/7] ppc bpf/jit: Disable classic BPF JIT on ppc64le Thadeu Lima de Souza Cascardo <cascardo@redhat.com> - 2016-06-22 19:00 +0200
  Re: [PATCHv2,1/7] ppc bpf/jit: Disable classic BPF JIT on ppc64le Michael Ellerman <mpe@ellerman.id.au> - 2016-06-23 11:30 +0200

csiph-web