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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 May 2025 10:54:20.0795 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d2fa85b9-fdc9-451b-4435-08dd8967b112 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[4.158.2.129];Helo=[outbound-uk1.az.dlp.m.darktrace.com] X-MS-Exchange-CrossTenant-AuthSource: DU6PEPF0000A7DF.eurprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PA4PR08MB6223 Gentle ping in case of forgotten. > when etm csdev's configuration is modified via sysfs while etm is being > enabled via perf, enabled etm could run with different configuration > from perf_event. > > Also, there are some redeundant usage of drvdata->spinlock in > etm_starting/dying_cpu() with enable/disable etm device. > > This patchset fixes above small problems. > > NOTE: > This patchset based on: > - https://lore.kernel.org/linux-arm-kernel/20241220104521.809071-1-yeoreum.yun@arm.com/ > > Yeoreum Yun (4): > coresight/etm4x: disallow altering config via sysfs while enabled > coresight/etm4x: remove redundant usage of drvdata->spinlock > coresight/etm3x: disallow altering config via sysfs while enabled > coresight/etm3x: remove redundant usage of drvdata->spinlock > > .../coresight/coresight-etm3x-core.c | 33 ++--- > .../coresight/coresight-etm3x-sysfs.c | 120 ++++++++++++++++ > .../coresight/coresight-etm4x-core.c | 20 +-- > .../coresight/coresight-etm4x-sysfs.c | 132 +++++++++++++++++- > 4 files changed, 272 insertions(+), 33 deletions(-) > > -- > LEVI:{C3F47F37-75D8-414A-A8BA-3980EC8A46D7} > -- Sincerely, Yeoreum Yun