linux-kernel - [PATCH v7 08/15] coresight: trace id: Remove legacy get trace ID function.

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Message-Id: <20230116124928.5440-9-mike.leach@linaro.org>
Date:   Mon, 16 Jan 2023 12:49:21 +0000
From:   Mike Leach <mike.leach@...aro.org>
To:     coresight@...ts.linaro.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org
Cc:     mathieu.poirier@...aro.org, suzuki.poulose@....com,
        peterz@...radead.org, mingo@...hat.com, acme@...nel.org,
        linux-perf-users@...r.kernel.org, leo.yan@...aro.org,
        quic_jinlmao@...cinc.com, Mike Leach <mike.leach@...aro.org>
Subject: [PATCH v7 08/15] coresight: trace id: Remove legacy get trace ID function.

Removes legacy coresight_get_trace_id() function now its use has been
removed from the ETM code.

Signed-off-by: Mike Leach <mike.leach@...aro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@....com>
---
 include/linux/coresight-pmu.h | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/include/linux/coresight-pmu.h b/include/linux/coresight-pmu.h
index ffff4e6277e5..624f4843453e 100644
--- a/include/linux/coresight-pmu.h
+++ b/include/linux/coresight-pmu.h
@@ -8,7 +8,6 @@
 #define _LINUX_CORESIGHT_PMU_H
 
 #define CORESIGHT_ETM_PMU_NAME "cs_etm"
-#define CORESIGHT_ETM_PMU_SEED  0x10
 
 /*
  * The legacy Trace ID system based on fixed calculation from the cpu
@@ -44,15 +43,4 @@
 #define ETM4_CFG_BIT_RETSTK	12
 #define ETM4_CFG_BIT_VMID_OPT	15
 
-static inline int coresight_get_trace_id(int cpu)
-{
-	/*
-	 * A trace ID of value 0 is invalid, so let's start at some
-	 * random value that fits in 7 bits and go from there.  Since
-	 * the common convention is to have data trace IDs be I(N) + 1,
-	 * set instruction trace IDs as a function of the CPU number.
-	 */
-	return (CORESIGHT_ETM_PMU_SEED + (cpu * 2));
-}
-
 #endif
-- 
2.17.1