https://bugzilla.kernel.org/show_bug.cgi?id=59041
Summary: [PATCH 001/001] Compiling iwlwifi or alx against
3.4.47 kernel gives redefinition error
Product: Backports project
Version: unspecified
Kernel Version: 3.4.47
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Compat-Drivers
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No
from: Steve Russo <[email protected]>
Compiling iwlwifi or alx against 3.4.47 kernel gives redefinition error. Tried
using compat-drivers-3.9-rc4-2-su, compat-drivers-3.9-rc2-2-su, and
compat-drivers-3.8.3-2-snpu. Does not work from any of them.
Patch against compat-drivers-3.9-rc4-2-su follows body.
Error:
auser@mycomputer:/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su# make
make -C /lib/modules/3.4.47/build
M=/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su modules
make[1]: Entering directory `/path/to/home/Dev/Kernel/generic/linux-3.4.47'
CC [M] /path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/compat/main.o
In file included from
/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/include/linux/compat-2.6.h:71:0,
from <command-line>:0:
/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/include/linux/compat-3.8.h:49:32:
error: redefinition of ‘kref_get_unless_zero’
In file included from include/linux/kobject.h:24:0,
from include/linux/device.h:17,
from include/linux/dmaengine.h:24,
from include/linux/skbuff.h:31,
from include/linux/if_ether.h:134,
from include/linux/netdevice.h:29,
from
/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/include/linux/compat-2.6.29.h:5,
from
/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/include/linux/compat-2.6.h:52,
from <command-line>:0:
include/linux/kref.h:113:32: note: previous definition of
‘kref_get_unless_zero’ was here
make[3]: ***
[/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/compat/main.o] Error 1
make[2]: *** [/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su/compat] Error
2
make[1]: *** [_module_/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su]
Error 2
make[1]: Leaving directory `/path/to/home/Dev/Kernel/generic/linux-3.4.47'
make: *** [modules] Error 2
auser@mycomputer:/path/to/home/Dev/Wired/compat-drivers-3.9-rc4-2-su#
Signed-off-by: Steve Russo <[email protected]>
---
The following patch against compat-drivers-3.9-rc4-2-su allowed compilation to
complete.
--- compat-3.8.h.0 2013-05-30 15:57:51.333132738 -0400
+++ compat-3.8.h 2013-05-30 15:59:12.689517900 -0400
@@ -22,6 +22,7 @@ extern void netdev_set_default_ethtool_o
extern bool hid_ignore(struct hid_device *);
+#ifndef _KREF_H_
/* This backports:
*
* commit 4b20db3de8dab005b07c74161cb041db8c5ff3a7
@@ -50,6 +51,7 @@ static inline int __must_check kref_get_
{
return atomic_add_unless(&kref->refcount, 1, 0);
}
+#endif
/* This backports:
*
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