[PATCH] mm/sparse: remove a check that compare if unsigned variable is negative

[Peng Hao]

From: Peng Hao <peng.h...@zte.com.cn>

In all use locations for for_each_present_section_nr, variable
section_nr is unsigned. It is unnecessary to test if it is negative.

Signed-off-by: Peng Hao <peng.h...@zte.com.cn>
---
 mm/sparse.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index 10b07ee..a6f9f22 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -196,8 +196,7 @@ static inline int next_present_section_nr(int section_nr)
 }
 #define for_each_present_section_nr(start, section_nr)         \
        for (section_nr = next_present_section_nr(start-1);     \
-            ((section_nr >= 0) &&                              \
-             (section_nr <= __highest_present_section_nr));    \
+            section_nr <= __highest_present_section_nr;        \
             section_nr = next_present_section_nr(section_nr))
 
 static inline unsigned long first_present_section_nr(void)
-- 
1.8.3.1