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authorDavid Woodhouse <David.Woodhouse@intel.com>2012-11-29 23:15:30 +0000
committerDavid Woodhouse <David.Woodhouse@intel.com>2012-12-02 00:06:03 +0000
commit213e85d389124f49c82d52cfb4473b8bb672f7c1 (patch)
tree3e433e2a17951b0ffc57a4a638ff0366ee437c07 /drivers/atm
parent5b4d72080f49498d2390563aa90f5bc31785406c (diff)
downloadlinux-213e85d389124f49c82d52cfb4473b8bb672f7c1.tar.gz
solos-pci: clean up pclose() function
- Flush pending TX skbs from the queue rather than waiting for them all to complete (suggested by Krzysztof Mazur <krzysiek@podlesie.net>). - Clear ATM_VF_ADDR only when the PKT_PCLOSE packet has been submitted. - Don't clear ATM_VF_READY at all — vcc_destroy_socket() does that for us. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/atm')
-rw-r--r--drivers/atm/solos-pci.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index f0863b44376..3f7c4ef1e11 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -868,9 +868,19 @@ static void pclose(struct atm_vcc *vcc)
{
struct solos_card *card = vcc->dev->dev_data;
unsigned char port = SOLOS_CHAN(vcc->dev);
- struct sk_buff *skb;
+ struct sk_buff *skb, *tmpskb;
struct pkt_hdr *header;
+ /* Remove any yet-to-be-transmitted packets from the pending queue */
+ spin_lock(&card->tx_queue_lock);
+ skb_queue_walk_safe(&card->tx_queue[port], skb, tmpskb) {
+ if (SKB_CB(skb)->vcc == vcc) {
+ skb_unlink(skb, &card->tx_queue[port]);
+ solos_pop(vcc, skb);
+ }
+ }
+ spin_unlock(&card->tx_queue_lock);
+
skb = alloc_skb(sizeof(*header), GFP_ATOMIC);
if (!skb) {
dev_warn(&card->dev->dev, "Failed to allocate sk_buff in pclose()\n");
@@ -886,9 +896,6 @@ static void pclose(struct atm_vcc *vcc)
skb_get(skb);
fpga_queue(card, port, skb, NULL);
- clear_bit(ATM_VF_ADDR, &vcc->flags);
- clear_bit(ATM_VF_READY, &vcc->flags);
-
if (!wait_event_timeout(card->param_wq, !skb_shared(skb), 5 * HZ))
dev_warn(&card->dev->dev,
"Timeout waiting for VCC close on port %d\n", port);
@@ -899,6 +906,9 @@ static void pclose(struct atm_vcc *vcc)
tasklet has finished processing any incoming packets (and, more to
the point, using the vcc pointer). */
tasklet_unlock_wait(&card->tlet);
+
+ clear_bit(ATM_VF_ADDR, &vcc->flags);
+
return;
}