]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
s390/qeth: try harder to get packets from RX buffer
authorJulian Wiedmann <jwi@linux.vnet.ibm.com>
Wed, 18 Oct 2017 15:40:23 +0000 (17:40 +0200)
committerDavid S. Miller <davem@davemloft.net>
Fri, 20 Oct 2017 12:11:05 +0000 (13:11 +0100)
commit864c17c3d83be6a1f6a2888566e93e114986abca
tree4b1259cbb2a4434eb9baf8cbf4b49681601cc807
parent8d68af6af6b4f76eac4f9abf584b4ea356f638c0
s390/qeth: try harder to get packets from RX buffer

Current code bails out when two subsequent buffer elements hold
insufficient data to contain a qeth_hdr packet descriptor.
This seems reasonable, but it would be legal for quirky hardware to
leave a few elements empty and then present packets in a subsequent
element. These packets would currently be dropped.

So make sure to check all buffer elements, until we hit the LAST_ENTRY
indication.

Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/s390/net/qeth_core_main.c