Messages in this thread Patch in this message | | | From | Maria Yu <> | Subject | [PATCH v3 1/1] mm/page_isolation: fix clang deadcode warning | Date | Fri, 21 Oct 2022 18:15:55 +0800 |
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When !CONFIG_VM_BUG_ON, there is warning of clang-analyzer-deadcode.DeadStores: Value stored to 'mt' during its initialization is never read.
Signed-off-by: Maria Yu <quic_aiquny@quicinc.com> --- mm/page_isolation.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_isolation.c b/mm/page_isolation.c index 04141a9bea70..47fbc1696466 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -330,7 +330,7 @@ static int isolate_single_pageblock(unsigned long boundary_pfn, int flags, zone->zone_start_pfn); if (skip_isolation) { - int mt = get_pageblock_migratetype(pfn_to_page(isolate_pageblock)); + int mt __maybe_unused = get_pageblock_migratetype(pfn_to_page(isolate_pageblock)); VM_BUG_ON(!is_migrate_isolate(mt)); } else { -- 2.17.1
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