On Wed, May 09, 2018 at 08:52:24AM -0400, Steven Rostedt wrote: > On Wed, 9 May 2018 16:43:16 +0800 > changbin.du@xxxxxxxxx wrote: > > > From: Changbin Du <changbin.du@xxxxxxxxx> > > > > With '-Og' optimization level, GCC would not optimize a count for a loop > > as a constant value. But BUILD_BUG_ON() only accept compile-time constant > > values. Let's use __fix_to_virt() to avoid the error. > > > > arch/arm/mm/mmu.o: In function `fix_to_virt': > > /home/changbin/work/linux/./include/asm-generic/fixmap.h:31: undefined reference to `__compiletime_assert_31' > > Makefile:1051: recipe for target 'vmlinux' failed > > make: *** [vmlinux] Error 1 > > Perhaps we should put this patch ahead of patch 3. Why allow it to > break? > Agree, let me exchange the last two patches. > Anyway, besides that, I think the series looks good. > > For the series: Acked-by: Steven Rostedt (VMware) <rostedt@xxxxxxxxxxx> > > -- Steve > > > > > > Signed-off-by: Changbin Du <changbin.du@xxxxxxxxx> > > > > --- > > v2: use __fix_to_virt() to fix the issue. > > --- > > arch/arm/mm/mmu.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c > > index e46a6a4..c08d74e 100644 > > --- a/arch/arm/mm/mmu.c > > +++ b/arch/arm/mm/mmu.c > > @@ -1599,7 +1599,7 @@ static void __init early_fixmap_shutdown(void) > > pte_t *pte; > > struct map_desc map; > > > > - map.virtual = fix_to_virt(i); > > + map.virtual = __fix_to_virt(i); > > pte = pte_offset_early_fixmap(pmd_off_k(map.virtual), map.virtual); > > > > /* Only i/o device mappings are supported ATM */ > -- Thanks, Changbin Du
