Messages in this thread Patch in this message | | | From | Charan Teja Kalla <> | Subject | [PATCH] mm: compaction: fix compiler warning when CONFIG_COMPACTION=n | Date | Fri, 18 Mar 2022 18:31:58 +0530 |
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The below warning is reported when CONFIG_COMPACTION=n:
mm/compaction.c:56:27: warning: 'HPAGE_FRAG_CHECK_INTERVAL_MSEC' defined but not used [-Wunused-const-variable=] 56 | static const unsigned int HPAGE_FRAG_CHECK_INTERVAL_MSEC = 500; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Fix it by moving 'HPAGE_FRAG_CHECK_INTERVAL_MSEC' under CONFIG_COMPACTION defconfig. Also since this is just a 'static const int' type, use #define for it.
Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com> --- mm/compaction.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/mm/compaction.c b/mm/compaction.c index b4e94cd..4d86d04 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -26,6 +26,11 @@ #include "internal.h" #ifdef CONFIG_COMPACTION +/* + * Fragmentation score check interval for proactive compaction purposes. + */ +#define HPAGE_FRAG_CHECK_INTERVAL_MSEC (500) + static inline void count_compact_event(enum vm_event_item item) { count_vm_event(item); @@ -51,11 +56,6 @@ static inline void count_compact_events(enum vm_event_item item, long delta) #define pageblock_end_pfn(pfn) block_end_pfn(pfn, pageblock_order) /* - * Fragmentation score check interval for proactive compaction purposes. - */ -static const unsigned int HPAGE_FRAG_CHECK_INTERVAL_MSEC = 500; - -/* * Page order with-respect-to which proactive compaction * calculates external fragmentation, which is used as * the "fragmentation score" of a node/zone. -- 2.7.4
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