Re: build failure of next-20221005 due to 4078ec1ef5ed ("LoongArch: Use TLB for ioremap()")
From: Xi Ruoyao
Date: Wed Oct 05 2022 - 10:07:24 EST
#define iounmap(addr) ((void)(addr))
This is how we normally silence an unused variable or parameter warning.
Not sure if the kernel uses the same convention though.
On Wed, 2022-10-05 at 13:54 +0100, Sudip Mukherjee wrote:
> On Wed, Oct 5, 2022 at 1:30 PM Huacai Chen <chenhuacai@xxxxxxxxxx>
> > Hi, Sudip,
> > This seems a false positive. When the implementation of iounmap() is
> > empty (but this is completely legal I think), these drivers will
> > cause
> > "unused variable error".
> And that error will fail the build as allmodconfig will have
Xi Ruoyao <xry111@xxxxxxxxxxx>
School of Aerospace Science and Technology, Xidian University