[PATCH] block/sx8 : remove unnecessory check

[Peng Hao]

From: Peng Hao <peng.hao2@xxxxxxxxxx>

TAG_VALID(tag)= ((((tag) & 0xf) == 0xf) && (TAG_DECODE(tag) < 32)).
But '(X & 0x1f) < 0x20(32)' is always true. The second half of
TAG_VALID is unnecessary.

Signed-off-by: Peng Hao <peng.hao2@xxxxxxxxxx>
---
 drivers/block/sx8.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/sx8.c b/drivers/block/sx8.c
index 4d90e5e..b8e9ebf 100644
--- a/drivers/block/sx8.c
+++ b/drivers/block/sx8.c
@@ -75,7 +75,7 @@
 /* 0xf is just arbitrary, non-zero noise; this is sorta like poisoning */
 #define TAG_ENCODE(tag)	(((tag) << 16) | 0xf)
 #define TAG_DECODE(tag)	(((tag) >> 16) & 0x1f)
-#define TAG_VALID(tag)	((((tag) & 0xf) == 0xf) && (TAG_DECODE(tag) < 32))
+#define TAG_VALID(tag)	(((tag) & 0xf) == 0xf)
 
 /* note: prints function name for you */
 #ifdef CARM_DEBUG
-- 
1.8.3.1