Messages in this thread |  | | Date | Sun, 13 Jun 2021 14:34:17 +0200 | From | Greg KH <> | Subject | Re: [PATCH v2] rtw_security: fix cast to restricted __le32 |
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On Sun, Jun 13, 2021 at 08:28:58PM +0800, Jhih-Ming Huang wrote: > This patch fixes the sparse warning of fix cast to restricted __le32. > > Last month, there was a change for replacing private CRC-32 routines with > in-kernel ones. > In that patch, we replaced getcrc32 with crc32_le in calling le32_to_cpu. > le32_to_cpu accepts __le32 type as arg, but crc32_le returns unsigned int. > That how it introduced the sparse warning.
As crc32_le returns a u32 which is in native-endian format, how can you cast it to le32? Why do you cast it to le32? Isn't that going to be incorrect for big endian systems?
thanks,
greg k-h
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