[PATCH] davinci: da850/omap-l138: Add Carrier Link OK check in Davinci RX Handler

Subsystems: networking drivers, the rest

STALE5644d

3 messages, 3 authors, 2011-02-25 · open the first message on its own page

[PATCH] davinci: da850/omap-l138: Add Carrier Link OK check in Davinci RX Handler

From: Hegde, Vinay <hidden>
Date: 2011-02-25 09:56:28

This patch adds an additional check in the Davinci EMAC RX Handler,
which tests the __LINK_STATE_NOCARRIER flag along with the
__LINK_STATE_START flag as part EMAC shutting down procedure.

This avoids
WARNING: at drivers/net/davinci_emac.c:1040 emac_rx_handler+0xf8/0x120()
during rtcwake used to suspend the target for a specified duration.

Signed-off-by: Hegde, Vinay <redacted>
---
 drivers/net/davinci_emac.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2a628d1..7018bfe 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1008,7 +1008,7 @@ static void emac_rx_handler(void *token, int len, int status)
 	int			ret;
 
 	/* free and bail if we are shutting down */
-	if (unlikely(!netif_running(ndev))) {
+	if (unlikely(!netif_running(ndev) || !netif_carrier_ok(ndev))) {
 		dev_kfree_skb_any(skb);
 		return;
 	}
-- 
1.7.1

[PATCH] davinci: da850/omap-l138: Add Carrier Link OK check in Davinci RX Handler

From: Sergei Shtylyov <hidden>
Date: 2011-02-25 11:55:45

Hello.

On 25-02-2011 12:56, Hegde, Vinay wrote:

    This is not a patch to arch/arm/mach-davinci/, so the summary prefix 
should not be "davinci: da850/omap-l138:" but rather "davinci_emac:" as you're 
patching this driver.
This patch adds an additional check in the Davinci EMAC RX Handler,
which tests the __LINK_STATE_NOCARRIER flag along with the
__LINK_STATE_START flag as part EMAC shutting down procedure.
This avoids
WARNING: at drivers/net/davinci_emac.c:1040 emac_rx_handler+0xf8/0x120()
during rtcwake used to suspend the target for a specified duration.
Signed-off-by: Hegde, Vinay <redacted>
quoted hunk
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2a628d1..7018bfe 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1008,7 +1008,7 @@ static void emac_rx_handler(void *token, int len, int status)
  	int			ret;

  	/* free and bail if we are shutting down */
-	if (unlikely(!netif_running(ndev))) {
+	if (unlikely(!netif_running(ndev) || !netif_carrier_ok(ndev))) {
  		dev_kfree_skb_any(skb);
  		return;
  	}
WBR, Sergei

[PATCH] davinci: da850/omap-l138: Add Carrier Link OK check in Davinci RX Handler

From: Cyril Chemparathy <hidden>
Date: 2011-02-25 13:16:18

On 02/25/2011 04:56 AM, Hegde, Vinay wrote:
quoted hunk
This patch adds an additional check in the Davinci EMAC RX Handler,
which tests the __LINK_STATE_NOCARRIER flag along with the
__LINK_STATE_START flag as part EMAC shutting down procedure.

This avoids
WARNING: at drivers/net/davinci_emac.c:1040 emac_rx_handler+0xf8/0x120()
during rtcwake used to suspend the target for a specified duration.

Signed-off-by: Hegde, Vinay <redacted>
---
 drivers/net/davinci_emac.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/net/davinci_emac.c b/drivers/net/davinci_emac.c
index 2a628d1..7018bfe 100644
--- a/drivers/net/davinci_emac.c
+++ b/drivers/net/davinci_emac.c
@@ -1008,7 +1008,7 @@ static void emac_rx_handler(void *token, int len, int status)
 	int			ret;
 
 	/* free and bail if we are shutting down */
-	if (unlikely(!netif_running(ndev))) {
+	if (unlikely(!netif_running(ndev) || !netif_carrier_ok(ndev))) {
 		dev_kfree_skb_any(skb);
 		return;
 	}
Looks ok.

Acked-by: Cyril Chemparathy <redacted>
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