Messages in this thread Patch in this message | | | From | Alexander Shishkin <> | Subject | [PATCH 1/4] perf: Export AUX buffer helpers to modules | Date | Mon, 20 Feb 2017 15:33:49 +0200 |
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From: Will Deacon <will.deacon@arm.com>
Perf PMU drivers using AUX buffers cannot be built as modules unless the AUX helpers are exported.
This patch exports perf_aux_output_{begin,end,skip} and perf_get_aux to modules.
Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> --- kernel/events/ring_buffer.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c index 257fa460b8..6415807169 100644 --- a/kernel/events/ring_buffer.c +++ b/kernel/events/ring_buffer.c @@ -397,6 +397,7 @@ void *perf_aux_output_begin(struct perf_output_handle *handle, return NULL; } +EXPORT_SYMBOL_GPL(perf_aux_output_begin); /* * Commit the data written by hardware into the ring buffer by adjusting @@ -458,6 +459,7 @@ void perf_aux_output_end(struct perf_output_handle *handle, unsigned long size, rb_free_aux(rb); ring_buffer_put(rb); } +EXPORT_SYMBOL_GPL(perf_aux_output_end); /* * Skip over a given number of bytes in the AUX buffer, due to, for example, @@ -486,6 +488,7 @@ int perf_aux_output_skip(struct perf_output_handle *handle, unsigned long size) return 0; } +EXPORT_SYMBOL_GPL(perf_aux_output_skip); void *perf_get_aux(struct perf_output_handle *handle) { @@ -495,6 +498,7 @@ void *perf_get_aux(struct perf_output_handle *handle) return handle->rb->aux_priv; } +EXPORT_SYMBOL_GPL(perf_get_aux); #define PERF_AUX_GFP (GFP_KERNEL | __GFP_ZERO | __GFP_NOWARN | __GFP_NORETRY) -- 2.11.0
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