On Thursday, 28 October 2021 09:23:06 CEST Yajun Deng wrote:

There are three variables that are required at most, no need to define four variables.

NAck. This is absolutely wrong - the last one is the "STOP" info. With your patch, it would sometimes (action != BATADV_UEV_DEL) not have the stop NULL. See also the second parameter in this for loop on line https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/lib/...

We can discuss that this can be written in a better way. See https://patchwork.open-mesh.org/project/b.a.t.m.a.n./patch/1403982781.9064.3... (also the remark from Antonio).

Fixes: 0fa4c30d710d ("batman-adv: Make sysfs support optional")

Even this Fixes would be wrong. The code is there since commit c6bda689c2c9 ("batman-adv: add wrapper function to throw uevent in userspace").

But even then, this would not fix anything but just be a cleanup.

Signed-off-by: Yajun Deng yajun.deng@linux.dev

net/batman-adv/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c index 3ddd66e4c29e..758035b3796d 100644 --- a/net/batman-adv/main.c +++ b/net/batman-adv/main.c @@ -656,7 +656,7 @@ int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type, { int ret = -ENOMEM; struct kobject *bat_kobj;

• char *uevent_env[4] = { NULL, NULL, NULL, NULL };

• char *uevent_env[3] = {};

  bat_kobj = &bat_priv->soft_iface->dev.kobj;