aufs vs. m68k conflict, please advice

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Hi,

a build of linux-2.6 (3.2~rc4-1~experimental.1) with gcc-4.6 (to
check whether we can switch to it for the kernel, too) fails:

[…]
  LD [M]  fs/affs/affs.o
  LD      fs/aufs/built-in.o
  CC [M]  fs/aufs/module.o
In file included from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/hardirq.h:7:0,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/arch/m68k/include/asm/irqflags.h:6,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/irqflags.h:15,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/spinlock.h:53,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/seqlock.h:29,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/time.h:8,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/stat.h:60,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/include/linux/module.h:10,
                 from /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/fs/aufs/module.c:23:
/tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/arch/m68k/include/asm/hardirq.h: In function 'ack_bad_irq':
/tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/arch/m68k/include/asm/hardirq.h:23:2: error: expected ')' before 'AUFS_NAME'
make[7]: *** [fs/aufs/module.o] Error 1
[…]

The cause isn’t hard to figure out:

    I /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/arch/m68k R21  <40   C1  384 |180 115|73 14:39
   21 static inline void ack_bad_irq(unsigned int irq)
   22 {
   23         pr_crit("unexpected IRQ trap at vector %02x\n", irq);
   24 }

(pbuild26252)root@ara5:/ # fgrep AUFS_NAME /tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/fs/aufs/*
/tmp/buildd/linux-2.6-3.2~rc4/debian/build/source_m68k_none/fs/aufs/Makefile:ccflags-y += -D'pr_fmt(fmt)=AUFS_NAME"\040%s:%d:%s[%d]:\040"fmt,__func__,__LINE__,current->comm,current->pid'

This, to me, looks like cpp abuse in aufs, but I’m not a kernel
programmer (Linux or otherwise).

bye,
//mirabilos
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