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Message-ID: <1382088475.16935.4.camel@phoenix> Date: Fri, 18 Oct 2013 17:27:55 +0800 From: Axel Lin <axel.lin@...ics.com> To: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Cc: Andrew Morton <akpm@...ux-foundation.org>, Peter Zijlstra <peterz@...radead.org>, "Michael S. Tsirkin" <mst@...hat.com> Subject: Build error for nommu if CONFIG_DEBUG_ATOMIC_SLEEP is selected Hi Michael, I got below build error for nommu if CONFIG_DEBUG_ATOMIC_SLEEP is selected. Also got the same build error if CONFIG_PROVE_LOCKING is selected. Seems this issue is introduced by commit 662bbcb2747c2 "mm, sched: Allow uaccess in atomic with pagefault_disable()". arch/arm/kernel/built-in.o: In function `arch_ptrace': arch/arm/kernel/ptrace.c:852: undefined reference to `might_fault' arch/arm/kernel/built-in.o: In function `restore_sigframe': arch/arm/kernel/signal.c:173: undefined reference to `might_fault' arch/arm/kernel/signal.c:174: undefined reference to `might_fault' arch/arm/kernel/signal.c:175: undefined reference to `might_fault' arch/arm/kernel/signal.c:176: undefined reference to `might_fault' arch/arm/kernel/built-in.o:arch/arm/kernel/signal.c:177: more undefined references to `might_fault' follow make: *** [vmlinux] Error 1 Regards, Axel -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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