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beceem: reserve one queue for bit-bucket

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This preserves the semantics of the original driver (unclassified packets
are dropped), but does it in a clean way; and fixes crash when packet
is sent to offline device.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
This commit is contained in:
Stephen Hemminger 2010-11-01 00:04:52 -04:00
parent 3644c1a2f1
commit 0980f2e814
2 changed files with 3 additions and 2 deletions
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3
drivers/staging/bcm/InterfaceInit.c
View File

@ -188,7 +188,8 @@ usbbcm_device_probe(struct usb_interface *intf, const struct usb_device_id *id)
PS_INTERFACE_ADAPTER psIntfAdapter;
struct net_device *ndev;
ndev = alloc_etherdev_mq(sizeof(MINI_ADAPTER), NO_OF_QUEUES);
/* Reserve one extra queue for the bit-bucket */
ndev = alloc_etherdev_mq(sizeof(MINI_ADAPTER), NO_OF_QUEUES+1);
if(ndev == NULL) {
dev_err(&udev->dev, DRV_NAME ": no memory for device\n");
return -ENOMEM;

2
drivers/staging/bcm/Macros.h
View File

@ -261,7 +261,7 @@ typedef enum _E_PHS_DSC_ACTION
#define FIRMWARE_BEGIN_ADDR 0xBFC00000
#define INVALID_QUEUE_INDEX (USHORT)-1
#define INVALID_QUEUE_INDEX (NO_OF_QUEUES+1)
#define INVALID_PID (pid_t)-1
#define DDR_80_MHZ 0