Re: [PATCH net-next] ptp: clockmatrix: remove unnecessary comparison

From: Yang Yingliang
Date: Fri Apr 24 2020 - 08:28:31 EST



On 2020/4/24 18:12, Sergei Shtylyov wrote:
Hello!

On 24.04.2020 11:14, Yang Yingliang wrote:

The type of loaddr is u8 which is always '<=' 0xff, so the
loaddr <= 0xff is always true, we can remove this comparison.

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Yang Yingliang <yangyingliang@xxxxxxxxxx>
---
 drivers/ptp/ptp_clockmatrix.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ptp/ptp_clockmatrix.c b/drivers/ptp/ptp_clockmatrix.c
index 032e112..56aee4f 100644
--- a/drivers/ptp/ptp_clockmatrix.c
+++ b/drivers/ptp/ptp_clockmatrix.c
@@ -780,7 +780,7 @@ static int idtcm_load_firmware(struct idtcm *idtcm,
 Â /* Page size 128, last 4 bytes of page skipped */
ÂÂÂÂÂÂÂÂÂÂÂÂÂ if (((loaddr > 0x7b) && (loaddr <= 0x7f))
-ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ || ((loaddr > 0xfb) && (loaddr <= 0xff)))
+ÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂÂ || loaddr <= 0xff)

ÂÂ Haven't you just said that this is always true? :-)

My bad, I sent the patch.


[...]

MBR, Sergei