diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2019-08-16 23:59:20 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-25 10:51:40 +0200 |
| commit | 5124abda3060e2eab506fb14a27acadee3c3e396 (patch) | |
| tree | acce94a18f6b90ecb28babe8166a2118bc1b420c /arch/s390/net | |
| parent | 43729e6fea58fe2c4fcc1e83547018ede540839d (diff) | |
bpf: get rid of pure_initcall dependency to enable jits
commit fa9dd599b4dae841924b022768354cfde9affecb upstream.
Having a pure_initcall() callback just to permanently enable BPF
JITs under CONFIG_BPF_JIT_ALWAYS_ON is unnecessary and could leave
a small race window in future where JIT is still disabled on boot.
Since we know about the setting at compilation time anyway, just
initialize it properly there. Also consolidate all the individual
bpf_jit_enable variables into a single one and move them under one
location. Moreover, don't allow for setting unspecified garbage
values on them.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
[bwh: Backported to 4.9 as dependency of commit 2e4a30983b0f
"bpf: restrict access to core bpf sysctls":
- Drop change in arch/mips/net/ebpf_jit.c
- Drop change to bpf_jit_kallsyms
- Adjust filenames, context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/s390/net')
| -rw-r--r-- | arch/s390/net/bpf_jit_comp.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index 8bd25aebf488..896344b6e036 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -28,8 +28,6 @@ #include <asm/nospec-branch.h> #include "bpf_jit.h" -int bpf_jit_enable __read_mostly; - struct bpf_jit { u32 seen; /* Flags to remember seen eBPF instructions */ u32 seen_reg[16]; /* Array to remember which registers are used */ |