Messages in this thread | | | Subject | Re: [PATCH] mtd: ubi: avoid expensive do_div() on 32-bit machines | From | Zhihao Cheng <> | Date | Wed, 13 Mar 2024 21:43:54 +0800 |
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在 2024/3/13 21:39, Arnd Bergmann 写道:
>> Thanks for explaination, which means that do_div is used for 64-bit >> division to solve the link failure caused by missed libgcc. Since >> parameter 'from' is u32, there is no need to invoke do_div on a 32-bit >> platform, you just want to stop the wasting behavior on a 32-bit >> platform. Do I understand right? > > Yes, correct. > > Arnd > . > How do you find it? I mean there are so many types and many do_div callers, do you have a static check tool?
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