diff options
| author | Daniel Borkmann <daniel@iogearbox.net> | 2019-08-16 23:04:32 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-08-25 10:50:02 +0200 |
| commit | 234646dcfc5f531c74ab20595e89eacd62e3611f (patch) | |
| tree | 0ee438cbf0e1ccf68b80e77ce60b0f5bb79426ca /arch/mips | |
| parent | c4de1123478864d714efba0eaa4fc4ffc01709cc (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 4.14 as dependency of commit 2e4a30983b0f
"bpf: restrict access to core bpf sysctls":
- Adjust context]
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/net/bpf_jit.c | 2 | ||||
| -rw-r--r-- | arch/mips/net/ebpf_jit.c | 2 |
2 files changed, 0 insertions, 4 deletions
diff --git a/arch/mips/net/bpf_jit.c b/arch/mips/net/bpf_jit.c index 44b925005dd3..4d8cb9bb8365 100644 --- a/arch/mips/net/bpf_jit.c +++ b/arch/mips/net/bpf_jit.c @@ -1207,8 +1207,6 @@ jmp_cmp: return 0; } -int bpf_jit_enable __read_mostly; - void bpf_jit_compile(struct bpf_prog *fp) { struct jit_ctx ctx; diff --git a/arch/mips/net/ebpf_jit.c b/arch/mips/net/ebpf_jit.c index 8004bfcfb033..42faa95ce664 100644 --- a/arch/mips/net/ebpf_jit.c +++ b/arch/mips/net/ebpf_jit.c @@ -177,8 +177,6 @@ static u32 b_imm(unsigned int tgt, struct jit_ctx *ctx) (ctx->idx * 4) - 4; } -int bpf_jit_enable __read_mostly; - enum which_ebpf_reg { src_reg, src_reg_no_fp, |