[PATCH 4.9 23/59] tools/vm/slabinfo.c: fix sign-compare warning

Greg Kroah-Hartman
2018-10-08T18:38:59Z

From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

[ 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@ah.jp.nec.com: convert everything - none of these can be negative]
Link: http://lkml.kernel.org/r/20180826234947.GA9787@hori1.linux.bs1.fc.nec.co.jp
Link: http://lkml.kernel.org/r/1535103134-20239-1-git-send-email-n-horiguchi@ah.jp.nec.com
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
tools/vm/slabinfo.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

--- a/tools/vm/slabinfo.c
+++ b/tools/vm/slabinfo.c
@@ -29,8 +29,8 @@ 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;