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mm/memblock.c: remove unnecessary always-true comparison

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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/[email protected]
Signed-off-by: Richard Leitner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Richard Leitner 2016-05-20 16:58:33 -07:00 • committed by Linus Torvalds
commit cd33a76b0f
1 changed files with 1 additions and 1 deletions
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2
mm/memblock.c
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@ -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;