Commit ea6c2549 authored by Adrian Hunter's avatar Adrian Hunter Committed by Greg Kroah-Hartman

perf intel-pt: Use FUP always when scanning for an IP

commit 622b7a47 upstream.

The decoder will try to use branch packets to find an IP to start decoding
or to recover from errors. Currently the FUP packet is used only in the
case of an overflow, however there is no reason for that to be a special
case. So just use FUP always when scanning for an IP.
Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-8-git-send-email-adrian.hunter@intel.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent c68f8e30
...@@ -1882,14 +1882,10 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder) ...@@ -1882,14 +1882,10 @@ static int intel_pt_walk_to_ip(struct intel_pt_decoder *decoder)
break; break;
case INTEL_PT_FUP: case INTEL_PT_FUP:
if (decoder->overflow) {
if (intel_pt_have_ip(decoder)) if (intel_pt_have_ip(decoder))
intel_pt_set_ip(decoder); intel_pt_set_ip(decoder);
if (decoder->ip) if (decoder->ip)
return 0; return 0;
}
if (decoder->packet.count && decoder->have_last_ip)
intel_pt_set_last_ip(decoder);
break; break;
case INTEL_PT_MTC: case INTEL_PT_MTC:
......
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