compat: remove trailing erroneous semicolon from compat-3.8.c

Upstream commit 5461c0248925836d7d10393ed0296aa82cb46e32

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: fix compile errors when assembly is built into modules

Upstream commit a04996415774e7bfe7bd95ef0013b13fd12eb6b2

On powerpc, modules can be compiled and linked with an assembly file, adding
missing symbols that the compiler references when using -Os.

== ckmake-report.log ==

1   2.6.24              [  OK  ]
2   2.6.25              [  OK  ]
3   2.6.26              [  OK  ]
4   2.6.27              [  OK  ]
5   2.6.28              [  OK  ]
6   2.6.29              [  OK  ]
7   2.6.30              [  OK  ]
8   2.6.31              [  OK  ]
9   2.6.32              [  OK  ]
10  2.6.33              [  OK  ]
11  2.6.34              [  OK  ]
12  2.6.35              [  OK  ]
13  2.6.36              [  OK  ]
14  2.6.37              [  OK  ]
15  2.6.38              [  OK  ]
16  2.6.39              [  OK  ]
17  3.0.50              [  OK  ]
18  3.1.10              [  OK  ]
19  3.2.33              [  OK  ]
20  3.3.8               [  OK  ]
21  3.4.17              [  OK  ]
22  3.5.7               [  OK  ]
23  3.6.5               [  OK  ]
24  3.7.0               [  OK  ]

real    0m33.803s
user    11m24.519s
sys     3m39.690s

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: do not access default_ethtool_ops

Upstream commit 670c4a3d46797a92fd15d201e5d9859393c7b2b6

&default_ethtool_ops is not exported in kernel 3.7.4 and earlier and it
should be be accessed from compat.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: netdev_set_default_ethtool_ops() is not in kernel 3.7.5

Upstream commit 726d9b2ca3f75cba9f1d03e519c2b2e8bf6523a7

netdev_set_default_ethtool_ops() should be added to compat for every
3.7.X series kernel as it is also not in 3.7.5.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: include linux/compat-3.8.h

This header file was not included in this branch.
This also fixes a compile problem in linux/compat-3.8.h.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: add compat/compat-3.8.c

compat/compat-3.8.c was never build and had a compile error which is
fixed now.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: deactivate netdev_set_default_ethtool_ops() for some 3.7 kernels

Upstream commit 4971ae5e2075a284ff36a68cab7c3f407a852801

netdev_set_default_ethtool_ops() was backported in 3.7.8 and compat
should not ship it on any more recent versions any more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
compat: add include/export.h in compat-3.8.c

This is not indirectly included on some kernel versions

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>