6:22 a.m.
On Tue, Nov 10, 2020 at 04:35:56PM +0100, Miquel Raynal wrote:
Hi Serge,
Serge Semin <Sergey.Semin(a)baikalelectronics.ru> wrote on Tue, 10 Nov
2020 14:38:27 +0300:
> Hello Miquel,
>
> A situation noted by the warning below won't cause any problem because
> the casting is done to a non-dereferenced variable. It is utilized
> as a pointer bias later in that function. Shall we just ignore the
> warning or still fix it somehow?
Do you think the cast to a !__iomem value is mandatory here?
It's not mandatory to have the casting with no __iomem, but wouldn't
doing like this:
+ shift = (ssize_t __iomem)src & 0x3;
be looking weird? Really, is there a good way to somehow extract the first
two bits of a __iomem pointer without getting the sparse warning?
-Sergey
>
> Perhaps if you find an elegant wait to avoid the warning it would be
> nice, otherwise I guess we'll let it aside as a false positive.
>
> Cheers,
> Miquèl