Hi all, After merging the akpm-current tree, today's linux-next build (arm multi_v7_defconfig) produced this warning: mm/gup.c:119:13: warning: 'put_compound_head' defined but not used [-Wunused-function] 119 | static void put_compound_head(struct page *page, int refs, unsigned int flags) | ^~~~~~~~~~~~~~~~~ Introduced by commit 6379e529ebe4 ("mm/gup: fixup for 9947ea2c1e608e32 "mm/gup: track FOLL_PIN pages"") -- Cheers, Stephen Rothwell