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SubjectRe: [PATCH] staging: rtl8188eu: Replace a custom function with crc32_le()
Date
On Thursday, July 1, 2021 5:54:49 PM CEST David Laight wrote:
> From: Fabio M. De Francesco
>
> > Sent: 01 July 2021 16:24
> >
> > On Thursday, July 1, 2021 4:52:08 PM CEST David Laight wrote:
> >
> > > From: Fabio M. De Francesco
> > >
> > >
> > >
> > > > Sent: 01 July 2021 14:38
> > > >
> > > >
> > > >
> > > > Use crc32_le in place of the custom getcrc32. This change makes GCC
> > > > to warn about incorrect castings to the restricted type __le32, but
> > > > they can be safely ignored because crc32_le calculates bitwise
> > > > little-endian Ethernet AUTODIN II CRC32.
> > >
> > >
> > >
> > > ...
> > >
> > >
> > >
> > > > - *((__le32 *)crc) =
> >
> > getcrc32(payload, length);/* modified by Amy*/
> >
> > > > + *((__le32 *)crc) =
> >
> > ~crc32_le(~0, payload, length);
> >
> > >
> > >
> > > Haven't we been round this before?
> > >
> > >
> >
> > No, I don't think so. At least, not you and I.
> >
>
>
> That was rt1872 this is rtl8188 but I think it is the same crap.
>
Perhaps it is the same crap... However, the patch is in accordance to one of
the two solution that Al Viro wrote about.

I think I'll leave the patch as is and wait for the final review by Greg K-H.

Thanks,

Fabio
>
> David
>
> -
> Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1
1PT, UK
> Registration No: 1397386 (Wales)




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