Re: [LTP] lapi: Add pkt_cls.h fallback

[linuxtestproject.agent@gmail.com]

Hi Andrea,

On Mon, 13 Jul 2026 14:37:07 +0200, Andrea Cervesato wrote:
> lapi: Add pkt_cls.h fallback

--- [PATCH 4/4] ---

> +static int file_fd = -1;
> +static int listen_fd = -1;
> +static int cli_fd = -1;
> +static int acc_fd = -1;

> +	SAFE_CLOSE(cli_fd);
> +	SAFE_CLOSE(acc_fd);

> +	SAFE_CLOSE(file_fd);

> +	if (cli_fd != -1)
> +		SAFE_CLOSE(cli_fd);
> +
> +	if (acc_fd != -1)
> +		SAFE_CLOSE(acc_fd);
> +
> +	if (file_fd != -1)
> +		SAFE_CLOSE(file_fd);

run() closes cli_fd, acc_fd, and file_fd but does not reset them to -1.
cleanup() is always called after run() completes, sees non-(-1) values,
and calls SAFE_CLOSE() a second time. SAFE_CLOSE() calls tst_brk(TBROK)
on EBADF, so the test always ends with TBROK on a clean kernel.

Add reset-to-(-1) after each close in run():

  SAFE_CLOSE(cli_fd);  cli_fd  = -1;
  SAFE_CLOSE(acc_fd);  acc_fd  = -1;
  ...
  SAFE_CLOSE(file_fd); file_fd = -1;

> +#define NETDEV_MAY_REMOVE_QDISC(ifname, family, parent, handle, qd_kind) \
> +	tst_netdev_remove_qdisc(__FILE__, __LINE__, 0, (ifname), (family), \
> +		(parent), (handle), (qd_kind))

The new macro silently tolerates a missing qdisc (strict=0) while the
existing NETDEV_REMOVE_QDISC fails hard. A short comment before the
definition would clarify that distinction for readers.

Verdict - Needs revision

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