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SubjectRe: [PATCH 1/1] dma-mapping: to avoid exception when cpu_addr is NULL
On Mon, 7 Mar 2016 17:21:25 +0800
Zhen Lei <thunder.leizhen@huawei.com> wrote:

> Do this to keep consistent with kfree, which tolerate ptr is NULL.
>
> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>

This is inlined code so you are adding extra logic to every single
instance of a call to the function. What is it's total effect on kernel
size ?

Alan

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