linux-kernel - [PATCH] coresight: etm4x: Remove redundant claim register setting

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Message-Id: <20250501104216.2375126-1-leo.yan@arm.com>
Date: Thu,  1 May 2025 11:42:16 +0100
From: Leo Yan <leo.yan@....com>
To: Suzuki K Poulose <suzuki.poulose@....com>,
	Mike Leach <mike.leach@...aro.org>,
	James Clark <james.clark@...aro.org>,
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
	coresight@...ts.linaro.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Cc: Leo Yan <leo.yan@....com>
Subject: [PATCH] coresight: etm4x: Remove redundant claim register setting

The claim register is set twice in the restore flow; remove the
duplicate operation.

Signed-off-by: Leo Yan <leo.yan@....com>
---
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 5c20ed4cf4ed..228317991ec2 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -1958,8 +1958,6 @@ static void __etm4_cpu_restore(struct etmv4_drvdata *drvdata)
 	if (drvdata->numvmidc > 4)
 		etm4x_relaxed_write32(csa, state->trcvmidcctlr0, TRCVMIDCCTLR1);
 
-	etm4x_relaxed_write32(csa, state->trcclaimset, TRCCLAIMSET);
-
 	if (!drvdata->skip_power_up)
 		etm4x_relaxed_write32(csa, state->trcpdcr, TRCPDCR);
 
-- 
2.34.1