Re: ioremap and dma cleanups and fixes for superh (2nd resend)

[peterz@infradead.org]

On Thu, Jul 16, 2020 at 01:03:36PM +0200, John Paul Adrian Glaubitz wrote:
> Hi Peter!
> 
> On 7/16/20 1:01 PM, peterz@infradead.org wrote:
> >> The build fails with:
> >>
> >>   CC      mm/mmu_gather.o
> >> mm/mmu_gather.c: In function ‘tlb_table_invalidate’:
> >> mm/mmu_gather.c:180:6: error: implicit declaration of function ‘tlb_needs_table_invalidate’; did you mean ‘tlb_table_invalidate’? [-Werror=implicit-function-declaration]
> >>   180 |  if (tlb_needs_table_invalidate()) {
> >>       |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
> >>       |      tlb_table_invalidate
> >> cc1: some warnings being treated as errors
> >> make[1]: *** [scripts/Makefile.build:281: mm/mmu_gather.o] Error 1
> >> make: *** [Makefile:1756: mm] Error 2
> > 
> > *sigh*, thanks, I'll go dig out the local cross compiler set then.
> 
> FWIW, I recommend keeping a Debian box at hand where installing the cross-compiler
> is a matter of running "apt install gcc-sh4-linux-gnu" ;-).

I happen to have Debian on most of my machines ;-) And I used to
crosstool build my own toolchains for a while, but these days I mostly
just fetch them from kernel.org, since they're being kept up-to-date
fairly often.

$ /opt/cross/bin/sh4-linux-gcc --version
sh4-linux-gcc (GCC) 10.1.0