Re: [PATCH] riscv: Fixup compile error with !MMU

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On Wed, Dec 7, 2022 at 5:32 PM Conor Dooley <conor@xxxxxxxxxx> wrote:
>
> On Wed, Dec 07, 2022 at 04:11:12AM -0500, guoren@xxxxxxxxxx wrote:
> > From: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> >
> > Current nommu_virt_defconfig can't compile:
> >
> > In file included from
> > arch/riscv/kernel/crash_core.c:3:
> > arch/riscv/kernel/crash_core.c:
> > In function 'arch_crash_save_vmcoreinfo':
> > arch/riscv/kernel/crash_core.c:8:27:
> > error: 'VA_BITS' undeclared (first use in this function)
> >     8 |         VMCOREINFO_NUMBER(VA_BITS);
> >       |                           ^~~~~~~
> >
> > Add MMU dependency for KEXEC_FILE.
> >
> > Fixes: 6261586e0c91 ("RISC-V: Add kexec_file support")
> > Reported-by: Conor Dooley <conor@xxxxxxxxxx>
>
> FWIW (but certainly don't resend for this)
> s/conor@xxxxxxxxxx/conor.dooley@xxxxxxxxxxxxx
>
> Thanks for the quick fix, there's other issues w/ that config for me,
> but this fixed the kexec bits :)
> Tested-by: Conor Dooley <conor.dooley@xxxxxxxxxxxxx>
Thx for the report and test.

>
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxx>
> > Signed-off-by: Guo Ren <guoren@xxxxxxxxxxxxxxxxx>
> > ---
> >  arch/riscv/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
> > index ef8d66de5f38..91319044fd13 100644
> > --- a/arch/riscv/Kconfig
> > +++ b/arch/riscv/Kconfig
> > @@ -496,7 +496,7 @@ config KEXEC_FILE
> >       select KEXEC_CORE
> >       select KEXEC_ELF
> >       select HAVE_IMA_KEXEC if IMA
> > -     depends on 64BIT
> > +     depends on 64BIT && MMU
> >       help
> >         This is new version of kexec system call. This system call is
> >         file based and takes file descriptors as system call argument
> > --
> > 2.36.1
> >



-- 
Best Regards
 Guo Ren



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