diff options
| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2026-07-24 13:15:23 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-07-30 16:54:58 -0700 |
| commit | 05b1a3a5eeaa64a5d412688e682a3b13acd99e8b (patch) | |
| tree | adb777bdf16d8c08b18f6dd1dab9056d44ecf9df /drivers | |
| parent | 2f2e974f8fbe8a19311842afaf66394f4caa0ae4 (diff) | |
net: mctp: usb: Use packet-length max for maximum packet-size check
The max packet size is smaller than the max transfer size, as we only
have a u8 length field in the transport header.
Add a define for the maximum representable length, and use that for our
check. Use this for the MTU maximum calculation too.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Link: https://patch.msgid.link/20260724-dev-mctp-usb-1-1-v5-2-e66bbba0dbdc@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/mctp/mctp-usb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/mctp/mctp-usb.c b/drivers/net/mctp/mctp-usb.c index 545eff06322c..c6e36b63e87a 100644 --- a/drivers/net/mctp/mctp-usb.c +++ b/drivers/net/mctp/mctp-usb.c @@ -76,7 +76,7 @@ static netdev_tx_t mctp_usb_start_xmit(struct sk_buff *skb, plen = skb->len; - if (plen + sizeof(*hdr) > MCTP_USB_1_0_XFER_SIZE) + if (plen + sizeof(*hdr) > MCTP_USB_1_0_PKTLEN_MAX) goto err_drop; rc = skb_cow_head(skb, sizeof(*hdr)); |