From: Tingwei Zhang <tingwei@codeaurora.org>
To: Mathieu Poirier <mathieu.poirier@linaro.org>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Mike Leach <mike.leach@linaro.org>
Cc: tsoni@codeaurora.org,
Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>,
Kim Phillips <kim.phillips@arm.com>,
Mao Jinlong <jinlmao@codeaurora.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
coresight@lists.linaro.org, Randy Dunlap <rdunlap@infradead.org>,
Mian Yousaf Kaukab <ykaukab@suse.de>,
Russell King <linux@armlinux.org.uk>,
Tingwei Zhang <tingwei@codeaurora.org>,
Leo Yan <leo.yan@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH v8 08/24] coresight: etm: perf: Fix warning caused by etm_setup_aux failure
Date: Fri, 7 Aug 2020 19:11:37 +0800 [thread overview]
Message-ID: <20200807111153.7784-9-tingwei@codeaurora.org> (raw)
In-Reply-To: <20200807111153.7784-1-tingwei@codeaurora.org>
When coresight_build_path() fails on all the cpus, etm_setup_aux
calls etm_free_aux() to free allocated event_data.
WARN_ON(cpumask_empty(mask) will be triggered since cpu mask is empty.
Check event_data->snk_config is not NULL first to avoid this
warning.
Fixes: f5200aa9831f38 ("coresight: perf: Refactor function free_event_data()")
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
drivers/hwtracing/coresight/coresight-etm-perf.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c
index dcb0592418ae..3728c44e5763 100644
--- a/drivers/hwtracing/coresight/coresight-etm-perf.c
+++ b/drivers/hwtracing/coresight/coresight-etm-perf.c
@@ -126,10 +126,10 @@ static void free_sink_buffer(struct etm_event_data *event_data)
cpumask_t *mask = &event_data->mask;
struct coresight_device *sink;
- if (WARN_ON(cpumask_empty(mask)))
+ if (!event_data->snk_config)
return;
- if (!event_data->snk_config)
+ if (WARN_ON(cpumask_empty(mask)))
return;
cpu = cpumask_first(mask);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
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next prev parent reply other threads:[~2020-08-07 11:15 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-07 11:11 [PATCH v8 00/24] coresight: allow to build coresight as modules Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 01/24] coresight: cpu_debug: add module name in Kconfig Tingwei Zhang
2020-08-12 17:16 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 02/24] coresight: cpu_debug: define MODULE_DEVICE_TABLE Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 03/24] coresight: use IS_ENABLED for CONFIGs that may be modules Tingwei Zhang
2020-08-12 17:54 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 04/24] coresight: add coresight prefix to barrier_pkt Tingwei Zhang
2020-08-12 17:58 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 05/24] coresight: export global symbols Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 06/24] coresight: add try_get_module() in coresight_grab_device() Tingwei Zhang
2020-08-12 19:36 ` Mathieu Poirier
2020-08-13 7:37 ` Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 07/24] coresight: stm: allow to build coresight-stm as a module Tingwei Zhang
2020-08-07 11:11 ` Tingwei Zhang [this message]
2020-08-12 20:48 ` [PATCH v8 08/24] coresight: etm: perf: Fix warning caused by etm_setup_aux failure Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 09/24] coresight: etm3x: allow etm3x to be built as a module Tingwei Zhang
2020-08-12 20:47 ` Mathieu Poirier
2020-08-13 2:16 ` Tingwei Zhang
2020-08-13 9:47 ` Suzuki K Poulose
2020-08-13 10:56 ` Tingwei Zhang
2020-08-13 17:00 ` Mathieu Poirier
2020-08-13 23:44 ` Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 10/24] coresight: etm4x: allow etm4x " Tingwei Zhang
2020-08-13 19:39 ` Mathieu Poirier
2020-08-13 23:46 ` Suzuki K Poulose
2020-08-14 9:52 ` Tingwei Zhang
2020-08-14 10:42 ` Suzuki K Poulose
2020-08-14 11:00 ` Tingwei Zhang
2020-08-14 11:18 ` Suzuki K Poulose
2020-08-13 19:40 ` Mathieu Poirier
2020-08-13 23:58 ` Tingwei Zhang
2020-08-13 19:45 ` Mathieu Poirier
2020-08-13 23:57 ` Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 11/24] coresight: etb: allow etb " Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 12/24] coresight: tpiu: allow tpiu " Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 13/24] coresight: tmc: allow tmc " Tingwei Zhang
2020-08-13 20:36 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 14/24] coresight: allow funnel driver to be built as module Tingwei Zhang
2020-08-13 20:15 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 15/24] coresight: allow replicator " Tingwei Zhang
2020-08-13 20:35 ` Mathieu Poirier
2020-08-14 0:08 ` Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 16/24] coresight: cti: add function to register cti associate ops Tingwei Zhang
2020-08-17 16:02 ` Mathieu Poirier
2020-08-17 18:49 ` Mike Leach
2020-08-18 17:16 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 17/24] coresight: cti: Fix remove sysfs link error Tingwei Zhang
2020-08-17 16:15 ` Mathieu Poirier
2020-08-17 22:48 ` Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 18/24] coresight: cti: Fix bug clearing sysfs links on callback Tingwei Zhang
2020-08-17 16:21 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 19/24] coresight: cti: don't disable ect device if it's not enabled Tingwei Zhang
2020-08-17 16:38 ` Mathieu Poirier
2020-08-17 19:04 ` Mike Leach
2020-08-18 17:39 ` Mathieu Poirier
2020-08-19 1:55 ` Tingwei Zhang
2020-08-19 19:50 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 20/24] coresight: cti: increase reference count when enabling cti Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 21/24] coresight: cti: allow cti to be built as a module Tingwei Zhang
2020-08-17 17:13 ` Mathieu Poirier
2020-08-17 19:14 ` Mike Leach
2020-08-18 17:42 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 22/24] coresight: tmc-etr: add function to register catu ops Tingwei Zhang
2020-08-07 11:11 ` [PATCH v8 23/24] coresight: catu: allow catu drivers to be built as modules Tingwei Zhang
2020-08-17 17:39 ` Mathieu Poirier
2020-08-07 11:11 ` [PATCH v8 24/24] coresight: allow the coresight core driver to be built as a module Tingwei Zhang
2020-08-17 17:47 ` Mathieu Poirier
2020-08-17 22:56 ` Tingwei Zhang
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