On 5/12/21 12:06 AM, Masahiro Yamada wrote: > On Wed, May 12, 2021 at 3:18 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: >> >> Hi. >> >> I thought that adding >> +generic-y += rwonce.h >> >> to arch/um/include/asm/Kbuild would fix a build problem: >> >> CC [M] fs/hostfs/hostfs_user.o >> In file included from ../include/asm-generic/div64.h:27, >> from ../fs/hostfs/hostfs_user.c:21: >> include/linux/compiler.h:248:10: fatal error: asm/rwonce.h: No such file or directory >> 248 | #include <asm/rwonce.h> >> | ^~~~~~~~~~~~~~ >> >> >> but it doesn't seem to be helping. >> Do I need to use mandatory-y instead? >> >> Or is arch/um/ with ARCH=um and SUBARCH=i386 just "different"? > > > I see > > mandatory-y += rwonce.h > > in include/asm-generic/Kbuild. > > > arch/x86/include/generated/asm/rwonce.h > is generated. > > > Is it still failing? Yes, I see the generated/asm/rwonce.h file but it still fails. Thanks. >> >> The build error is: >> ERROR: modpost: "__divdi3" [fs/hostfs/hostfs.ko] undefined! >> >> and my current patch attempt is below >> >> Thanks. >> >> --- -- ~Randy
