Re: [PATCH v2 02/14] net: ethernet: ti: cpsw: remove redundant check in napi poll

From: Ivan Khoronzhuk
Date: Tue Aug 09 2016 - 08:10:15 EST




On 09.08.16 14:29, Grygorii Strashko wrote:
On 08/06/2016 01:48 PM, Ivan Khoronzhuk wrote:
No need to check number of handled packets, when in most cases (> 99%)
it's not 0. It can be 0 only in rare cases, even in this case
it's not bad to print just 0.

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@xxxxxxxxxx>
---
drivers/net/ethernet/ti/cpsw.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 8972bf6..85ee9f5 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -793,9 +793,7 @@ static int cpsw_tx_poll(struct napi_struct *napi_tx, int budget)
}
}

- if (num_tx)
- cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);
-
+ cpsw_dbg(priv, intr, "poll %d tx pkts\n", num_tx);

I think, this dbg log can be just dropped as it seems not very useful.
This also will allow to drop patch [PATCH v2 12/14] net: ethernet: ti: cpsw: fix int dbg message
That was my first thought, but I worried about someone can use it.
If no one has objection, I'll drop the patch 12 and delete "poll" print at all.


return num_tx;
}

@@ -814,9 +812,7 @@ static int cpsw_rx_poll(struct napi_struct *napi_rx, int budget)
}
}

- if (num_rx)
- cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);
-
+ cpsw_dbg(priv, intr, "poll %d rx pkts\n", num_rx);

Same here.

return num_rx;
}





--
Regards,
Ivan Khoronzhuk