On Mon, Mar 01, 2021 at 12:15:49PM +0000, Suzuki K Poulose wrote: > commit f72896063396b0cb205cbf0fd76ec6ab3ca11c8a upstream > > TRCSTALLCTLR register is only implemented if > > TRCIDR3.STALLCTL == 0b1 > > Make sure the driver touches the register only it is implemented. > > Link: https://lore.kernel.org/r/20210127184617.3684379-1-suzuki.poulose@xxxxxxx > Cc: stable@xxxxxxxxxxxxxxx # v5.11- > Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> > Cc: Mike Leach <mike.leach@xxxxxxxxxx> > Cc: Leo Yan <leo.yan@xxxxxxxxxx> > Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > --- > drivers/hwtracing/coresight/coresight-etm4x-core.c | 9 ++++++--- > drivers/hwtracing/coresight/coresight-etm4x-sysfs.c | 2 +- > 2 files changed, 7 insertions(+), 4 deletions(-) Now queued up to 5.10.y and 5.11.y, thanks. greg k-h