trace: annotate remaining DECLARE_TR_CTX calls

Under Zephyr with CONFIG_ZEPHYR_LOG, tr_err()/tr_warn()/tr_info()/tr_dbg()
expand directly to LOG_ERR()/LOG_WRN()/LOG_INF()/LOG_DBG() and never look
at their tr_ctx argument. None of these remaining DECLARE_TR_CTX()
instances are referenced by anything other than tr_*() calls in the same
file (verified: no .tctx/->tctx assignment picks up their address), so
they are already dead code eliminated by the linker on Zephyr builds -
this commit only documents that fact, it changes no generated code.

(dai-legacy.c, host-legacy.c and the platform/library/schedule/*.c files
are excluded: they are only ever built for non-Zephyr, non-hardware
configurations - testbench/cmocka/legacy XTOS - so the comment would not
apply to them.)

Signed-off-by: Guennadi Liakhovetski <guennadi.liakhovetski@linux.intel.com>

Author: lyakh

src/audio/aria/aria.c

@@ -327,6 +327,7 @@ SOF_LLEXT_BUILDINFO;
 
 #else
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(aria_comp_tr, SOF_UUID(aria_uuid), LOG_LEVEL_INFO);
 DECLARE_MODULE_ADAPTER(aria_interface, aria_uuid, aria_comp_tr);
 SOF_MODULE_INIT(aria, sys_comp_module_aria_interface_init);

src/audio/asrc/asrc_ipc3.c

@@ -16,6 +16,7 @@
 
 SOF_DEFINE_REG_UUID(asrc);
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(asrc_tr, SOF_UUID(asrc_uuid), LOG_LEVEL_INFO);
 LOG_MODULE_DECLARE(asrc, CONFIG_SOF_LOG_LEVEL);
 

src/audio/asrc/asrc_ipc4.c

@@ -16,6 +16,7 @@
 
 SOF_DEFINE_REG_UUID(asrc4);
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(asrc_tr, SOF_UUID(asrc4_uuid), LOG_LEVEL_INFO);
 
 int asrc_dai_configure_timestamp(struct comp_data *cd)

src/audio/buffers/comp_buffer.c

@@ -29,6 +29,7 @@
 LOG_MODULE_REGISTER(buffer, CONFIG_SOF_LOG_LEVEL);
 
 SOF_DEFINE_REG_UUID(buffer);
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(buffer_tr, SOF_UUID(buffer_uuid), LOG_LEVEL_INFO);
 
 static size_t comp_buffer_get_data_available(struct sof_source *source)

src/audio/buffers/ring_buffer.c

@@ -18,6 +18,7 @@
 LOG_MODULE_REGISTER(ring_buffer, CONFIG_SOF_LOG_LEVEL);
 
 SOF_DEFINE_REG_UUID(ring_buffer);
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(ring_buffer_tr, SOF_UUID(ring_buffer_uuid), LOG_LEVEL_INFO);
 
 static inline struct ring_buffer *ring_buffer_from_sink(struct sof_sink *sink)

src/audio/channel_map.c

@@ -18,6 +18,7 @@ LOG_MODULE_REGISTER(channel_map, CONFIG_SOF_LOG_LEVEL);
 
 SOF_DEFINE_REG_UUID(chmap);
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(chmap_tr, SOF_UUID(chmap_uuid), LOG_LEVEL_INFO);
 
 struct sof_ipc_channel_map *chmap_get(struct sof_ipc_stream_map *smap,

src/audio/codec/dts/dts.c

@@ -491,6 +491,7 @@ SOF_LLEXT_BUILDINFO;
 
 #else
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(dts_tr, SOF_UUID(dts_uuid), LOG_LEVEL_INFO);
 DECLARE_MODULE_ADAPTER(dts_interface, dts_uuid, dts_tr);
 SOF_MODULE_INIT(dts, sys_comp_module_dts_interface_init);

src/audio/component.c

@@ -48,6 +48,7 @@ struct comp_driver_list *comp_drivers_get(void)
 
 SOF_DEFINE_REG_UUID(component);
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(comp_tr, SOF_UUID(component_uuid), LOG_LEVEL_INFO);
 
 int comp_register(struct comp_driver_info *drv)

src/audio/copier/copier.c

@@ -1298,6 +1298,7 @@ static APP_SYSUSER_DATA const struct module_interface copier_interface = {
 	.endpoint_ops = &copier_endpoint_ops,
 };
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(copier_comp_tr, SOF_UUID(copier_uuid), LOG_LEVEL_INFO);
 
 DECLARE_MODULE_ADAPTER(copier_interface, copier_uuid, copier_comp_tr);

src/audio/crossover/crossover.c

@@ -689,6 +689,7 @@ SOF_LLEXT_BUILDINFO;
 
 #else
 
+/* unused with Zephyr, generates no output */
 DECLARE_TR_CTX(crossover_tr, SOF_UUID(crossover_uuid), LOG_LEVEL_INFO);
 DECLARE_MODULE_ADAPTER(crossover_interface, crossover_uuid, crossover_tr);
 SOF_MODULE_INIT(crossover, sys_comp_module_crossover_interface_init);