[PATCH] io: ftw: Use state stack instead of recursion (BZ 33882)

[Andreas Schwab]

On Feb 18 2026, Adhemerval Zanella wrote:

> +static struct ftw_frame *
> +stack_top(struct ftw_data *data)
> +{
> +  if (data->stack_size == 0)
> +    return NULL;

I think this should be an assertion, this and stack_pop should never be
called with an empty stack.  The uses of stack_top don't check for NULL
anyway.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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