4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> [ Upstream commit 904506562e0856f2535d876407d087c9459d345b ] Currently we get the following compiler warning: slabinfo.c:854:22: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if (s->object_size < min_objsize) ^ due to the mismatch of signed/unsigned comparison. ->object_size and ->slab_size are never expected to be negative, so let's define them as unsigned int. [n-horiguchi@xxxxxxxxxxxxx: convert everything - none of these can be negative] Link: http://lkml.kernel.org/r/20180826234947.GA9787@xxxxxxxxxxxxxxxxxxxxxxxxxxxx Link: http://lkml.kernel.org/r/1535103134-20239-1-git-send-email-n-horiguchi@xxxxxxxxxxxxx Signed-off-by: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/vm/slabinfo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/tools/vm/slabinfo.c +++ b/tools/vm/slabinfo.c @@ -30,8 +30,8 @@ struct slabinfo { int alias; int refs; int aliases, align, cache_dma, cpu_slabs, destroy_by_rcu; - int hwcache_align, object_size, objs_per_slab; - int sanity_checks, slab_size, store_user, trace; + unsigned int hwcache_align, object_size, objs_per_slab; + unsigned int sanity_checks, slab_size, store_user, trace; int order, poison, reclaim_account, red_zone; unsigned long partial, objects, slabs, objects_partial, objects_total; unsigned long alloc_fastpath, alloc_slowpath;