[PATCH -next] arm64/mm/dump: fix a compilation error

Will Deacon will at kernel.org
Fri Jan 10 08:07:34 PST 2020


On Fri, Jan 10, 2020 at 03:34:48PM +0000, Steven Price wrote:
> On Fri, Jan 10, 2020 at 02:51:12PM +0000, Qian Cai wrote:
> > The linux-next commit "x86: mm: avoid allocating struct mm_struct on the
> > stack" [1] introduced a compilation error with "arm64: mm: convert
> > mm/dump.c to use walk_page_range()" [2]. Fixed it by using the new API.
> > 
> > arch/arm64/mm/dump.c:326:38: error: too few arguments to function call,
> > expected 3, have 2
> >         ptdump_walk_pgd(&st.ptdump, info->mm);
> >         ~~~~~~~~~~~~~~~                     ^
> > ./include/linux/ptdump.h:20:1: note: 'ptdump_walk_pgd' declared here
> > void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm,
> > pgd_t *pgd);
> > ^
> > arch/arm64/mm/dump.c:364:38: error: too few arguments to function call,
> > expected 3, have 2
> >         ptdump_walk_pgd(&st.ptdump, &init_mm);
> >         ~~~~~~~~~~~~~~~                     ^
> > ./include/linux/ptdump.h:20:1: note: 'ptdump_walk_pgd' declared here
> > void ptdump_walk_pgd(struct ptdump_state *st, struct mm_struct *mm,
> > pgd_t *pgd);
> > ^
> > 2 errors generated.
> > 
> > [1] http://lkml.kernel.org/r/20200108145710.34314-1-steven.price@arm.com
> 
> Actually this was in the patch I originally posted - somehow it got
> lost when Andrew picked it up.
> 
> > [2] http://lkml.kernel.org/r/20191218162402.45610-22-steven.price@arm.com
> > 
> > Signed-off-by: Qian Cai <cai at lca.pw>
> 
> Since this matches what I originally wrote... ;)
> 
> Reviewed-by: Steven Price <steven.price at arm.com>

Acked-by: Will Deacon <will at kernel.org>

I'm assuming Andrew will queue this alongside the others.

Thanks,

Will



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