Re: [PATCH wireless-next 2/3] ath5k: Introduce _ath5k_printk toreduce code/text
From: Adrian Chadd
Date: Mon Mar 19 2012 - 00:36:47 EST
Hi,
So the reason this is a macro in the FreeBSD HAL is so that the args
aren't evaluated unless the level (or debug bitmap in my case) fires
off.
Otherwise compiling in debugging will cause a _lot_ of spurious
register reads to occur that are then tossed. This was one of the big
reasons for instability and slow performance when AH_DEBUG was
enabled.
Adrian
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