Hi Geert, The fix is here: https://lore.kernel.org/linux-mm/CA+CK2bBjC8=cRsL5VhWkcevPsqSXWhsANVjsFNMERLT8vWtiQw@xxxxxxxxxxxxxx/ Thank you, Pasha On Tue, Feb 2, 2021 at 5:35 AM Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> wrote: > > On Tue, Feb 2, 2021 at 10:13 AM Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote: > > After merging the akpm-current tree, today's linux-next build (x86_64 > > allnoconfig) failed like this: > > > > In file included from arch/x86/include/asm/page.h:76, > > from arch/x86/include/asm/thread_info.h:12, > > from include/linux/thread_info.h:56, > > from arch/x86/include/asm/preempt.h:7, > > from include/linux/preempt.h:78, > > from include/linux/spinlock.h:51, > > from include/linux/mmzone.h:8, > > from include/linux/gfp.h:6, > > from include/linux/slab.h:15, > > from include/linux/crypto.h:20, > > from arch/x86/kernel/asm-offsets.c:9: > > include/linux/mm.h: In function 'is_pinnable_page': > > include/asm-generic/memory_model.h:64:14: error: implicit declaration of function 'page_to_section'; did you mean 'present_section'? [-Werror=implicit-function-declaration] > > 64 | int __sec = page_to_section(__pg); \ > > | ^~~~~~~~~~~~~~~ > > include/asm-generic/memory_model.h:81:21: note: in expansion of macro '__page_to_pfn' > > 81 | #define page_to_pfn __page_to_pfn > > | ^~~~~~~~~~~~~ > > include/linux/mm.h:1134:15: note: in expansion of macro 'page_to_pfn' > > 1134 | is_zero_pfn(page_to_pfn(page)); > > | ^~~~~~~~~~~ > > In addition, noreply@xxxxxxxxxxxxxx reports for m68k/m5272c3_defconfig: > > include/linux/mm.h:1133:3: error: implicit declaration of function > 'is_zero_pfn'; did you mean 'is_zero_ino'? > [-Werror=implicit-function-declaration] > > is_zero_pfn() is only defined if CONFIG_MMU=y. > > Hence using it in mm/gup.c in commit 3f509f6aef4bb868 ("mm/gup: migrate > pinned pages out of movable zone") breaks compilation of gup.c, too. > > > Gr{oetje,eeting}s, > > Geert > > -- > Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx > > In personal conversations with technical people, I call myself a hacker. But > when I'm talking to journalists I just say "programmer" or something like that. > -- Linus Torvalds
