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| author | Hans Petter Selasky <hselasky@c2i.net> | 2011-04-24 22:35:19 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-04-24 22:35:19 -0700 |
| commit | 8c61d9d611cb5b290f1b4ac57c4631acfd6e3b5a (patch) | |
| tree | 0e8d3f1c5d9d8bc34d238e739ea57cd098560924 | |
| parent | 9ac067a84efbc7f5570d4d93c3b303001d5e8b38 (diff) | |
| download | linux-8c61d9d611cb5b290f1b4ac57c4631acfd6e3b5a.tar.gz linux-8c61d9d611cb5b290f1b4ac57c4631acfd6e3b5a.tar.bz2 linux-8c61d9d611cb5b290f1b4ac57c4631acfd6e3b5a.zip | |
cdc_ncm: fix short packet issue on some devices
The default maximum transmit length for NCM USB frames should be so
that a short packet happens at the end if the device supports a length
greater than the defined maximum. This is achieved by adding 4 bytes
to the maximum length so that the existing logic can fit a short
packet there.
Signed-off-by: Hans Petter Selasky <hselasky@c2i.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/usb/cdc_ncm.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c index 967371f04454..1033ef6476a4 100644 --- a/drivers/net/usb/cdc_ncm.c +++ b/drivers/net/usb/cdc_ncm.c @@ -54,13 +54,13 @@ #include <linux/usb/usbnet.h> #include <linux/usb/cdc.h> -#define DRIVER_VERSION "7-Feb-2011" +#define DRIVER_VERSION "23-Apr-2011" /* CDC NCM subclass 3.2.1 */ #define USB_CDC_NCM_NDP16_LENGTH_MIN 0x10 /* Maximum NTB length */ -#define CDC_NCM_NTB_MAX_SIZE_TX 16384 /* bytes */ +#define CDC_NCM_NTB_MAX_SIZE_TX (16384 + 4) /* bytes, must be short terminated */ #define CDC_NCM_NTB_MAX_SIZE_RX 16384 /* bytes */ /* Minimum value for MaxDatagramSize, ch. 6.2.9 */ |