drivers/mtd/maps/physmap-bt1-rom.c:78:18: sparse: sparse: cast removes address space '__iomem' of expression

Miquel Raynal miquel.raynal at bootlin.com
Tue Nov 10 10:35:56 EST 2020


Hi Serge,

Serge Semin <Sergey.Semin at 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?

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



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