]> git.baikalelectronics.ru Git - kernel.git/commit
powerpc/xmon: Fix disabling tracing while in xmon
authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Thu, 27 Jun 2019 09:59:40 +0000 (15:29 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Mon, 1 Jul 2019 06:26:55 +0000 (16:26 +1000)
commit848f023aaacf5a8e4533d9ffb5857f4883c5642e
treefb1945c13dbcadfdc0b2f36c103e4b011c5023ef
parentb8411c75b01a743a6fbc8247ec83b89112d07952
powerpc/xmon: Fix disabling tracing while in xmon

Commit f60c0c5893783 ("powerpc/xmon: Disable tracing when entering
xmon") added code to disable recording trace entries while in xmon. The
commit introduced a variable 'tracing_enabled' to record if tracing was
enabled on xmon entry, and used this to conditionally enable tracing
during exit from xmon.

However, we are not checking the value of 'fromipi' variable in
xmon_core() when setting 'tracing_enabled'. Due to this, when secondary
cpus enter xmon, they will see tracing as being disabled already and
tracing won't be re-enabled on exit. Fix the same.

Fixes: f60c0c5893783 ("powerpc/xmon: Disable tracing when entering xmon")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/xmon/xmon.c