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authorDaniel Borkmann <daniel@iogearbox.net>2018-01-20 01:24:33 +0100
committerAlexei Starovoitov <ast@kernel.org>2018-01-19 18:37:00 -0800
commitfa9dd599b4dae841924b022768354cfde9affecb (patch)
tree9f26c547aa46c73afa8ad85cc63ef9931fb86821 /arch/arm/net/bpf_jit_32.c
parentbpf: add couple of test cases for div/mod by zero (diff)
downloadlinux-dev-fa9dd599b4dae841924b022768354cfde9affecb.tar.xz
linux-dev-fa9dd599b4dae841924b022768354cfde9affecb.zip
bpf: get rid of pure_initcall dependency to enable jits
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>
Diffstat (limited to 'arch/arm/net/bpf_jit_32.c')
-rw-r--r--arch/arm/net/bpf_jit_32.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index 4425189bb24c..a15e7cdf8754 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -25,8 +25,6 @@
#include "bpf_jit_32.h"
-int bpf_jit_enable __read_mostly;
-
#define STACK_OFFSET(k) (k)
#define TMP_REG_1 (MAX_BPF_JIT_REG + 0) /* TEMP Register 1 */
#define TMP_REG_2 (MAX_BPF_JIT_REG + 1) /* TEMP Register 2 */