New: change to include/linux/netdevice.h prevents compilation for ARM architecture with AEABI enabled

https://bugzilla.kernel.org/show_bug.cgi?id=18942

Summary: change to include/linux/netdevice.h prevents
compilation for ARM architecture with AEABI enabled
Product: Platform Specific/Hardware
Version: 2.5
Kernel Version: 2.6.35.4
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: ARM
AssignedTo: [email protected]
ReportedBy: [email protected]
Regression: No

I am trying to compile the latest kernel, and am running into the following error:
In file included from include/linux/icmpv6.h:173,

                 from include/linux/ipv6.h:220,
                 from include/net/ipv6.h:16,
                 from include/linux/sunrpc/clnt.h:25,
                 from include/linux/nfs_fs.h:48,
                 from init/do_mounts.c:20:

include/linux/netdevice.h:1005: error: width of 'reg_state' exceeds its type include/linux/netdevice.h:1010: error: width of 'rtnl_link_state' exceeds its type

There was a change not too long ago, which converted reg_state to a bitfield, which apparently doesn't work when -mabi=aapcs.
I tested it with a gcc versions 4.2.0, 4.4.2, and 4.4.4 and it holds true for all of them.

Here is simple test case:
struct test {
enum { NETREG_UNINITIALIZED=0,
} reg_state:16;
};

int main(int argc, char** argv)

{
        struct test tt;
        tt.reg_state=NETREG_UNINITIALIZED;
        return 0;
}

Compiles without -mabi=aapcs option, fails with.