On Thu, Sep 28, 2023, at 01:22, Stephen Rothwell wrote: > Hi all, > > After merging the mm tree, today's linux-next build (arm > multi_v7_defconfig) failed like this: > > fs/proc/task_mmu.c: In function 'pagemap_scan_pmd_entry': > fs/proc/task_mmu.c:2153:22: error: implicit declaration of function > 'pagemap_scan_is_interesting_page'; did you mean > 'pagemap_scan_is_interesting_vma'? > [-Werror=implicit-function-declaration] > 2153 | if > (!pagemap_scan_is_interesting_page(categories, p)) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > | pagemap_scan_is_interesting_vma > > Caused by commit > > 825ebc8e4bf9 ("fs/proc/task_mmu: hide unused > pagemap_scan_backout_range() function") > > I applied the following fix patch. > > From: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> > Date: Thu, 28 Sep 2023 09:09:26 +1000 > Subject: [PATCH] fix for "fs/proc/task_mmu: hide unused > pagemap_scan_backout_range() function" > > Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> Thanks for the fix. I don't see what happened exactly, maybe we had two conflicting workarounds for the same problem applied. The version in linux-next works for me on the randconfig builds, so folding your patch on top should be fine. Arnd