From mboxrd@z Thu Jan 1 00:00:00 1970 From: will.deacon@arm.com (Will Deacon) Date: Fri, 27 Jan 2017 18:07:45 +0000 Subject: [PATCH 06/10] perf/core: Export AUX buffer helpers to modules In-Reply-To: <1485540470-11469-1-git-send-email-will.deacon@arm.com> References: <1485540470-11469-1-git-send-email-will.deacon@arm.com> Message-ID: <1485540470-11469-7-git-send-email-will.deacon@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Signed-off-by: Will Deacon --- 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 257fa460b846..64158071690c 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) -- 2.1.4