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xsk: always return ENOBUFS from sendmsg if there is no TX queue
authorMagnus Karlsson <magnus.karlsson@intel.com>
Wed, 11 Jul 2018 08:12:51 +0000 (10:12 +0200)
committerDaniel Borkmann <daniel@iogearbox.net>
Fri, 13 Jul 2018 13:34:31 +0000 (15:34 +0200)
commit6efb4436f7fcc50cc3fb9a113d0f16e3968172b1
tree79fec6084ce553c60448bb6c72dd7c7a9d2be674
parent9684f5e7c8cdf076aeec81344d4893a30f7aa6a1
xsk: always return ENOBUFS from sendmsg if there is no TX queue

This patch makes sure ENOBUFS is always returned from sendmsg if there
is no TX queue configured. This was not the case for zero-copy
mode. With this patch this error reporting is consistent between copy
mode and zero-copy mode.

Fixes: ac98d8aab61b ("xsk: wire upp Tx zero-copy functions")
Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
net/xdp/xsk.c