Re: [PATCH 1/2] irq_flags_t: intro and core annotations

[Jan Engelhardt <jengelh@computergmbh.de>]

Hi,

On Oct 21 2007, Alexey Dobriyan wrote:
>
>One of type of bugs steadily being fought is the following one:
>
>	unsigned int flags;
>	spin_lock_irqsave(&lock, flags);
>
>where "flags" should be "unsigned long". Here is far from complete list 
>of commits fixing such bugs:
>

How about making spin_lock_irqsave actually take a pointer to flags? 
(Which would be the logical choice if it were a function and not a 
macro...) That would flag up all violations ("without cast to different 
pointer" or so) while usually not breaking compilation.

Of course, irq_flags_t is probably the best long-term solution if one 
wants to hide a struct. (Even then perhaps, use a pointer instead?)
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/