linux-kernel - Re: [PATCH 1/4] Blackfin: arch patch for 2.6.18

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Message-Id: <200609271841.14135.arnd@arndb.de>
Date:	Wed, 27 Sep 2006 18:41:13 +0200
From:	Arnd Bergmann <arnd@...db.de>
To:	Robin Getz <rgetz@...ckfin.uclinux.org>
Cc:	luke Yang <luke.adi@...il.com>, Andrew Morton <akpm@...l.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/4] Blackfin: arch patch for 2.6.18

On Wednesday 27 September 2006 18:25, Robin Getz wrote:
> +#define idle_with_irq_disabled() do {   \
> +        __asm__ __volatile__ (          \
> +                "nop; nop;\n"           \
> +                ".align 8;\n"           \
> +                "sti %0; idle;\n"       \
> +                ::"d" (irq_flags));     \
> +} while (0)
> 

The irq_flags are not declared anywhere in the code you just posted,
I guess you could simply declare a local variable in this macro.

It would also be better to convert macros like this one to inline
functions in general. The rule is: if you can use either a macro
or an inline function with the same effect, use an inline function.

	Arnd <><
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