From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 52/53] perf intel-pt: Packet splitting can happen only on 32-bit Date: Wed, 6 Feb 2019 15:49:02 -0300 Message-ID: <20190206184903.24054-53-acme@kernel.org> References: <20190206184903.24054-1-acme@kernel.org> Mime-Version: 1.0 Content-Transfer-Encoding: 8bit Return-path: In-Reply-To: <20190206184903.24054-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: Jiri Olsa , Namhyung Kim , Clark Williams , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Adrian Hunter , Jiri Olsa , Arnaldo Carvalho de Melo List-Id: linux-perf-users.vger.kernel.org From: Adrian Hunter Data is copied when the trace is stopped, so packets are never split between buffers except when processing if the buffer cannot fit in the address space which can only happen on 32-bit systems. Change the logic to reflect that. Signed-off-by: Adrian Hunter Cc: Jiri Olsa Link: http://lkml.kernel.org/r/20190206103947.15750-5-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/intel-pt-decoder/intel-pt-decoder.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c index a54d6c9a4601..6e03db142091 100644 --- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c +++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c @@ -868,7 +868,7 @@ static int intel_pt_get_next_packet(struct intel_pt_decoder *decoder) ret = intel_pt_get_packet(decoder->buf, decoder->len, &decoder->packet); - if (ret == INTEL_PT_NEED_MORE_BYTES && + if (ret == INTEL_PT_NEED_MORE_BYTES && BITS_PER_LONG == 32 && decoder->len < INTEL_PT_PKT_MAX_SZ && !decoder->next_buf) { ret = intel_pt_get_split_packet(decoder); if (ret < 0) -- 2.20.1