Re: [PATCH 1/2] bug: Provide WARN_ON.*DEFERRED() macros for console deferred output

[Peter Zijlstra]

On Tue, Jun 23, 2026 at 04:26:49PM +0200, Sebastian Andrzej Siewior wrote:

> +#ifndef WARN_ON_DEFERRED
> +#define WARN_ON_DEFERRED(condition) ({					\
> +	int __ret_warn_on = !!(condition);				\
> +	if (unlikely(__ret_warn_on)) {					\
> +		guard(preempt)();					\
> +		printk_deferred_enter()					\
> +		__WARN();						\
> +		printk_deferred_exit()					\
> +	}								\
> +	unlikely(__ret_warn_on);					\
> +})
> +#endif

This will generate atrocious shite at the WARN sites.