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authorRichard Leitner <dev@g0hl1n.net>2016-05-20 16:58:33 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-05-20 17:58:30 -0700
commitcd33a76b0f2805fb0d6a05a2d53933f3817ccc9b (patch)
treeec001711de1e1490cf2bfd289cfe627f9fd4ca0b
parent9a001fc19cccdeb9be4c3b89ad089d92df303c44 (diff)
downloadop-kernel-dev-cd33a76b0f2805fb0d6a05a2d53933f3817ccc9b.zip
op-kernel-dev-cd33a76b0f2805fb0d6a05a2d53933f3817ccc9b.tar.gz
mm/memblock.c: remove unnecessary always-true comparison
Comparing an u64 variable to >= 0 returns always true and can therefore be removed. This issue was detected using the -Wtype-limits gcc flag. This patch fixes following type-limits warning: mm/memblock.c: In function `__next_reserved_mem_region': mm/memblock.c:843:11: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] if (*idx >= 0 && *idx < type->cnt) { Link: http://lkml.kernel.org/r/20160510103625.3a7f8f32@g0hl1n.net Signed-off-by: Richard Leitner <dev@g0hl1n.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/memblock.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/memblock.c b/mm/memblock.c
index 3b93daa..ac12489 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -824,7 +824,7 @@ void __init_memblock __next_reserved_mem_region(u64 *idx,
{
struct memblock_type *type = &memblock.reserved;
- if (*idx >= 0 && *idx < type->cnt) {
+ if (*idx < type->cnt) {
struct memblock_region *r = &type->regions[*idx];
phys_addr_t base = r->base;
phys_addr_t size = r->size;
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