The patch titled Subject: mm/damon: fix missing-prototype build warning for 'damon_pa_apply_scheme()' has been removed from the -mm tree. Its filename was mm-damon-paddr-support-the-pageout-scheme-fix.patch This patch was dropped because it was folded into mm-damon-paddr-support-the-pageout-scheme.patch ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: mm/damon: fix missing-prototype build warning for 'damon_pa_apply_scheme()' Kernel test robot found[1] commit ccd554f15bb1 ("mm/damon/paddr: support the pageout scheme") on the -mm tree[2], which is introduced by the patch titled 'mm-damon-paddr-support-the-pageout-scheme.patch'[3] introduces following build warning, and therefore the build fails if 'CONFIG_WERROR=y'. linux/mm/damon/paddr.c:216:5: error: no previous prototype for `damon_pa_apply_scheme' [-Werror=missing-prototypes] int damon_pa_apply_scheme(struct damon_ctx *ctx, struct damon_target *t, ^~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors linux/scripts/Makefile.build:277: recipe for target 'mm/damon/paddr.o' failed This commit fixes the warning by adding the missed prototype in the header file. Note: Because the reported '.config' introduces warnings on not only DAMON but also other subsystems, I tested for only DAMON by adding the below compiler flag in mm/damon/Makefile. ccflags-$(CONFIG_DAMON_PADDR) += -Werror -Wmissing-prototypes [1] https://lore.kernel.org/lkml/202110250029.5rftt73s-lkp@xxxxxxxxx/ [2] https://github.com/hnaz/linux-mm/commit/ccd554f15bb1cd977d740c1ea8241ecf95108c94 [3] https://lore.kernel.org/mm-commits/20211019213137.91_rr1GrX%25akpm@xxxxxxxxxxxxxxxxxxxx/ Link: https://lkml.kernel.org/r/20211025064220.13904-1-sj@xxxxxxxxxx Fixes: ccd554f15bb1 ("mm/damon/paddr: support the pageout scheme") in -mm tree Reported-by: kernel test robot <lkp@xxxxxxxxx> Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/damon.h | 2 ++ 1 file changed, 2 insertions(+) --- a/include/linux/damon.h~mm-damon-paddr-support-the-pageout-scheme-fix +++ a/include/linux/damon.h @@ -357,6 +357,8 @@ void damon_va_set_primitives(struct damo void damon_pa_prepare_access_checks(struct damon_ctx *ctx); unsigned int damon_pa_check_accesses(struct damon_ctx *ctx); bool damon_pa_target_valid(void *t); +int damon_pa_apply_scheme(struct damon_ctx *context, struct damon_target *t, + struct damon_region *r, struct damos *scheme); void damon_pa_set_primitives(struct damon_ctx *ctx); #endif /* CONFIG_DAMON_PADDR */ _ Patches currently in -mm which might be from sj@xxxxxxxxxx are maintainers-update-seongjaes-email-address.patch mm-damon-core-print-kdamond-start-log-in-debug-mode-only.patch mm-damon-core-account-age-of-target-regions.patch mm-damon-core-implement-damon-based-operation-schemes-damos.patch mm-damon-vaddr-support-damon-based-operation-schemes.patch mm-damon-dbgfs-support-damon-based-operation-schemes.patch mm-damon-schemes-implement-statistics-feature.patch selftests-damon-add-schemes-debugfs-tests.patch docs-admin-guide-mm-damon-document-damon-based-operation-schemes.patch mm-damon-dbgfs-allow-users-to-set-initial-monitoring-target-regions.patch mm-damon-dbgfs-test-add-a-unit-test-case-for-init_regions.patch docs-admin-guide-mm-damon-document-init_regions-feature.patch mm-damon-vaddr-separate-commonly-usable-functions.patch mm-damon-implement-primitives-for-physical-address-space-monitoring.patch mm-damon-dbgfs-support-physical-memory-monitoring.patch docs-damon-document-physical-memory-monitoring-support.patch mm-damon-paddr-support-the-pageout-scheme.patch mm-damon-schemes-implement-size-quota-for-schemes-application-speed-control.patch mm-damon-schemes-skip-already-charged-targets-and-regions.patch mm-damon-schemes-implement-time-quota.patch mm-damon-dbgfs-support-quotas-of-schemes.patch mm-damon-selftests-support-schemes-quotas.patch mm-damon-schemes-prioritize-regions-within-the-quotas.patch mm-damon-vaddrpaddr-support-pageout-prioritization.patch mm-damon-dbgfs-support-prioritization-weights.patch tools-selftests-damon-update-for-regions-prioritization-of-schemes.patch mm-damon-schemes-activate-schemes-based-on-a-watermarks-mechanism.patch mm-damon-dbgfs-support-watermarks.patch selftests-damon-support-watermarks.patch mm-damon-introduce-damon-based-reclamation-damon_reclaim.patch documentation-admin-guide-mm-damon-add-a-document-for-damon_reclaim.patch docs-admin-guide-mm-damon-start-fix-wrong-example-commands.patch docs-admin-guide-mm-damon-start-fix-a-wrong-link.patch docs-admin-guide-mm-damon-start-simplify-the-content.patch docs-admin-guide-mm-pagemap-wordsmith-page-flags-descriptions.patch