linux-kernel - linux-next: build failure after merge of the final tree

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Date:	Thu, 5 Jan 2012 19:04:05 +1100
From:	Stephen Rothwell <sfr@...b.auug.org.au>
To:	Steven Rostedt <rostedt@...dmis.org>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...hat.com>
Cc:	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>
Subject: linux-next: build failure after merge of the final tree

Hi ,

After merging the final tree, today's linux-next build (sparc64 defconfig)
failed like this:

In file included from include/trace/ftrace.h:567:0,
                 from include/trace/define_trace.h:86,
                 from include/trace/events/power.h:240,
                 from kernel/trace/power-traces.c:14:
include/trace/events/kmem.h: In function 'ftrace_test_probe_kmalloc':
include/trace/events/kmem.h:45:1: error: implicit declaration of function 'check_trace_callback_type_kmalloc' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_kmem_cache_alloc':
include/trace/events/kmem.h:53:1: error: implicit declaration of function 'check_trace_callback_type_kmem_cache_alloc' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_kmalloc_node':
include/trace/events/kmem.h:99:1: error: implicit declaration of function 'check_trace_callback_type_kmalloc_node' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_kmem_cache_alloc_node':
include/trace/events/kmem.h:108:1: error: implicit declaration of function 'check_trace_callback_type_kmem_cache_alloc_node' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_kfree':
include/trace/events/kmem.h:136:1: error: implicit declaration of function 'check_trace_callback_type_kfree' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_kmem_cache_free':
include/trace/events/kmem.h:143:1: error: implicit declaration of function 'check_trace_callback_type_kmem_cache_free' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_mm_page_free':
include/trace/events/kmem.h:150:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_free' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_mm_page_free_batched':
include/trace/events/kmem.h:172:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_free_batched' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_mm_page_alloc':
include/trace/events/kmem.h:194:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_alloc' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_mm_page_alloc_zone_locked':
include/trace/events/kmem.h:249:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_alloc_zone_locked' [-Werror=implicit-function-declaration]
include/trace/events/kmem.h: In function 'ftrace_test_probe_mm_page_alloc_extfrag':
include/trace/events/kmem.h:267:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_alloc_extfrag' [-Werror=implicit-function-declaration]
In file included from include/trace/ftrace.h:774:0,
                 from include/trace/define_trace.h:86,
                 from include/trace/events/power.h:240,
                 from kernel/trace/power-traces.c:14:
include/trace/events/kmem.h: In function 'perf_test_probe_mm_page_pcpu_drain':
include/trace/events/kmem.h:256:1: error: implicit declaration of function 'check_trace_callback_type_mm_page_pcpu_drain' [-Werror=implicit-function-declaration]

I have no idea what has gone wrong here, but I did not get this error
yesterday.  The only thing that touched include/trace/events/kmem.h is
patch "mm-tracepoint: rename page-free events" from the akpm tree, but
that was there yesterday as well and doesn't look suspicious.

I just have to leave things broken for today in the hope that someone
figures something out.  This does not affect my X86_64 allmodconfig build
or my PowerPC builds (including an allyesconfig build).
-- 
Cheers,
Stephen Rothwell                    sfr@...b.auug.org.au
http://www.canb.auug.org.au/~sfr/

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