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perf_counter: Fix the PARISC build

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PARISC does not build:

/home/mingo/tip/kernel/perf_counter.c: In function 'perf_counter_index':
/home/mingo/tip/kernel/perf_counter.c:2016: error: 'PERF_COUNTER_INDEX_OFFSET' undeclared (first use in this function)
/home/mingo/tip/kernel/perf_counter.c:2016: error: (Each undeclared identifier is reported only once
/home/mingo/tip/kernel/perf_counter.c:2016: error: for each function it appears in.)

As PERF_COUNTER_INDEX_OFFSET is not defined.

Now, we could define it in the architecture - but lets also provide
a core default of 0 (which happens to be what all but one
architecture uses at the moment).

Architectures that need a different index offset should set this
value in their asm/perf_counter.h files.

Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-parisc@vger.kernel.org
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar 2009-08-18 11:32:24 +02:00
parent e1ac3614ff
commit f738eb1b63
1 changed files with 4 additions and 0 deletions
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4
kernel/perf_counter.c
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@ -2019,6 +2019,10 @@ int perf_counter_task_disable(void)
return 0; return 0;
} }
#ifndef PERF_COUNTER_INDEX_OFFSET
# define PERF_COUNTER_INDEX_OFFSET 0
#endif
static int perf_counter_index(struct perf_counter *counter) static int perf_counter_index(struct perf_counter *counter)
{ {
if (counter->state != PERF_COUNTER_STATE_ACTIVE) if (counter->state != PERF_COUNTER_STATE_ACTIVE)