Re: [PATCH char-misc-linus 5/5] misc: mic: Fix user space namespacepollution from mic_common.h.

From: H. Peter Anvin
Date: Tue Nov 26 2013 - 13:21:03 EST


On 11/26/2013 10:15 AM, Ashutosh Dixit wrote:
> Avoid declaring ALIGN() and __aligned() in
> include/uapi/linux/mic_common.h since they pollute user space
> namespace. Also, mic_aligned_size() can be simply replaced simply by
> sizeof() since all structures where mic_aligned_size() is used are
> declared using __attribute__ ((aligned(8)));
>
> +#define MIC_ALIGN(a, x) (((a) + (x) - 1) & ~((x) - 1))
>

This is still user namespace. I would suggest __mic_align() or
_MIC_ALIGN() instead, unless you're actively expecting user code to make
use of this macro (in which case it should be made more robust.)

-hpa


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