[PATCH bpf-next] bpf: trace jit code when enable BPF_JIT_ALWAYS_ON

[Jianlin Lv]

When CONFIG_BPF_JIT_ALWAYS_ON is enabled, the value of bpf_jit_enable in
/proc/sys is limited to SYSCTL_ONE. This is not convenient for debugging.
This patch modifies the value of extra2 (max) to 2 that support developers
to emit traces on kernel log.

Signed-off-by: Jianlin Lv <jianlin...@arm.com>
---
 net/core/sysctl_net_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c
index d84c8a1b280e..aa16883ac445 100644
--- a/net/core/sysctl_net_core.c
+++ b/net/core/sysctl_net_core.c
@@ -386,7 +386,7 @@ static struct ctl_table net_core_table[] = {
                .proc_handler   = proc_dointvec_minmax_bpf_enable,
 # ifdef CONFIG_BPF_JIT_ALWAYS_ON
                .extra1         = SYSCTL_ONE,
-               .extra2         = SYSCTL_ONE,
+               .extra2         = &two,
 # else
                .extra1         = SYSCTL_ZERO,
                .extra2         = &two,
-- 
2.25.1