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perf intel-pt: Simplify intel_pt_get_vmcs()

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Simplify and remove unnecessary constant expressions.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20231005190451.175568-3-adrian.hunter@intel.com
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Adrian Hunter 2023-10-05 22:04:48 +03:00 committed by Namhyung Kim
parent a91c987254
commit 1d2dbce9bb
1 changed files with 4 additions and 9 deletions
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13
tools/perf/util/intel-pt-decoder/intel-pt-pkt-decoder.c
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@ -131,19 +131,14 @@ static int intel_pt_get_cbr(const unsigned char *buf, size_t len,
static int intel_pt_get_vmcs(const unsigned char *buf, size_t len,
struct intel_pt_pkt *packet)
{
unsigned int count = (52 - 5) >> 3;
if (count < 1 || count > 7)
return INTEL_PT_BAD_PACKET;
if (len < count + 2)
if (len < 7)
return INTEL_PT_NEED_MORE_BYTES;
packet->type = INTEL_PT_VMCS;
packet->count = count;
memcpy_le64(&packet->payload, buf + 2, count);
packet->count = 5;
memcpy_le64(&packet->payload, buf + 2, 5);
return count + 2;
return 7;
}
static int intel_pt_get_ovf(struct intel_pt_pkt *packet)