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| author | Philippe Mathieu-Daudé <philmd@redhat.com> | 2020-06-12 10:54:40 +0200 |
|---|---|---|
| committer | Stefan Berger <stefanb@linux.vnet.ibm.com> | 2020-06-19 07:25:31 -0400 |
| commit | f670a562af4bd6ef9adee7654cf5129f14a277a8 (patch) | |
| tree | bd3fd3cbfbca18d510a6fadaf85dda78b07b6fa1 /hw/tpm | |
| parent | 680725651799e4f1c74a29b6fc5813708c786747 (diff) | |
| download | qemu-f670a562af4bd6ef9adee7654cf5129f14a277a8.zip qemu-f670a562af4bd6ef9adee7654cf5129f14a277a8.tar.gz qemu-f670a562af4bd6ef9adee7654cf5129f14a277a8.tar.bz2 | |
hw/tpm: Make TRACE_TPM_UTIL_SHOW_BUFFER check local to tpm_util.c
The trace_event_get_state_backends() call is useful to avoid
making extensive calls (usually preparing arguments passed to
the tracing framework. In this case, the extensive work is
done in tpm_util_show_buffer(), and the arguments used to
call it don't involve extra processing. Simplify by moving
the TRACE_TPM_UTIL_SHOW_BUFFER check to tpm_util_show_buffer.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-id: 20200612085444.8362-9-philmd@redhat.com
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Diffstat (limited to 'hw/tpm')
| -rw-r--r-- | hw/tpm/tpm_tis_common.c | 8 | ||||
| -rw-r--r-- | hw/tpm/tpm_util.c | 3 |
2 files changed, 5 insertions, 6 deletions
diff --git a/hw/tpm/tpm_tis_common.c b/hw/tpm/tpm_tis_common.c index 9470487..1779b4f 100644 --- a/hw/tpm/tpm_tis_common.c +++ b/hw/tpm/tpm_tis_common.c @@ -78,9 +78,7 @@ static void tpm_tis_sts_set(TPMLocality *l, uint32_t flags) */ static void tpm_tis_tpm_send(TPMState *s, uint8_t locty) { - if (trace_event_get_state_backends(TRACE_TPM_UTIL_SHOW_BUFFER)) { - tpm_util_show_buffer(s->buffer, s->be_buffer_size, "To TPM"); - } + tpm_util_show_buffer(s->buffer, s->be_buffer_size, "To TPM"); /* * rw_offset serves as length indicator for length of data; @@ -246,9 +244,7 @@ void tpm_tis_request_completed(TPMState *s, int ret) s->loc[locty].state = TPM_TIS_STATE_COMPLETION; s->rw_offset = 0; - if (trace_event_get_state_backends(TRACE_TPM_UTIL_SHOW_BUFFER)) { - tpm_util_show_buffer(s->buffer, s->be_buffer_size, "From TPM"); - } + tpm_util_show_buffer(s->buffer, s->be_buffer_size, "From TPM"); if (TPM_TIS_IS_VALID_LOCTY(s->next_locty)) { tpm_tis_abort(s); diff --git a/hw/tpm/tpm_util.c b/hw/tpm/tpm_util.c index c0a0f3d..12f1946 100644 --- a/hw/tpm/tpm_util.c +++ b/hw/tpm/tpm_util.c @@ -357,6 +357,9 @@ void tpm_util_show_buffer(const unsigned char *buffer, size_t len, i; char *line_buffer, *p; + if (!trace_event_get_state_backends(TRACE_TPM_UTIL_SHOW_BUFFER)) { + return; + } len = MIN(tpm_cmd_get_size(buffer), buffer_size); /* |